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ЦитироватьMUOS 5 satellite comes to Florida on way to geosynchronous orbit       
Posted on March 9, 2016 by Justin Ray (http://spaceflightnow.com/author/justin-sfn-ray/)
(https://img.novosti-kosmonavtiki.ru/154922.jpg) (http://spaceflightnow.com/wp-content/uploads/2016/03/muos5_factory.jpg)
MUOS No. 5 in the factory before shipment to Cape Canaveral for launch. Credit: Lockheed Martin
 
CAPE CANAVERAL — The fifth and final satellite for the U.S. Navy's new mobile network to provide rugged smartphone communications to all branches of the military has arrived at the launch site for blastoff in May.
The Mobile User Objective System satellite No. 5, built to be an on-orbit spare, was flown aboard a C-5 Galaxy aircraft March 3 from its Lockheed Martin factory in Sunnyvale, California to Cape Canaveral, Florida.
Liftoff is targeted for May 5 atop a United Launch Alliance Atlas 5 rocket flying in its mightiest 551 configuration with five strap-on solid-fuel boosters.
The launch will be occur some time during an unclassified period that runs from 11:46 a.m. to 3:46 p.m. EDT.
The mission will complete the MUOS launch series that began in 2012 to form a global communications infrastructure in geosynchronous orbit 22,300 miles up. All the satellites have used the Atlas 5 to get into space.
 MUOS 1 — Launched Feb. 24, 2012 (Coverage: Pacific Ocean region)
 MUOS 2 — Launched July 19, 2013 (Coverage: Continental U.S.)
 MUOS 3 — Launched Jan. 20, 2015 (Coverage: Atlantic Ocean region)
 MUOS 4 — Launched Sept. 2, 2015 (Coverage: Indian Ocean region)
 MUOS 5 — Planned for May 5 (Coverage: Indian Ocean region)
"As MUOS-5's launch approaches, MUOS-4 is preparing to begin operations on-station, enabling MUOS' near-global coverage," said Mark Woempner, program director of Lockheed Martin's Narrowband Communications mission area.
"We are proud that we will soon be providing our mobile forces access to the system's enhanced communications capabilities from nearly anywhere, including further into polar regions than ever before."
MUOS is the nation's next-generation narrowband tactical satellite communications system, providing 3G cellphone features to warfighters on the move.
(https://img.novosti-kosmonavtiki.ru/154921.jpg) (https://img.novosti-kosmonavtiki.ru/154921.jpg)
MUOS No. 5 solar array wing assembly. Credit: Lockheed Martin
 
"Mobile forces, equipped with MUOS terminals, will soon be able to communicate with each other – including voice, data and exchanging imagery – real-time, virtually anywhere on the Earth," said Iris Bombelyn, Lockheed Martin's vice president for Narrowband Communications. "This is a tremendous upgrade in communications capabilities over what currently exists for our nation and our allies."
MUOS No. 5 was taken to the commercial Astrotech processing facility in Titusville to be unpacked from its shipping container. It will undergo final testing, the loading of maneuvering fuel and encapsulation in the rocket's 18-foot-diameter composite nose cone.
The Atlas 5 first stage and Centaur upper stage will be brought together starting in mid-April at the Vertical Integration Facility at Cape Canaveral's Complex 41. The satellite will be mounted on top to finish assembling the 206-foot-tall rocket at the end of April.
Atlas rockets have conducted 23 launches with communications satellites for the Navy since 1978.

Our Atlas archive (http://spaceflightnow.com/atlas/).

ЦитироватьRocket/Payload: An Atlas V 551 will launch the U.S. Navy's fifth Mobile User Objective System (MUOS-5) satellite, built by Lockheed Martin.

Date/Site/Launch Time: Thursday, May 5, from Space Launch Complex-41 at Cape Canaveral Air Force Station, Florida.

Mission Description: The fifth Mobile User Objective System (MUOS-5) satellite is the latest addition to a network of orbiting satellites and relay ground stations that is revolutionizing secure communications for mobile military forces. Users with operational MUOS terminals can seamlessly connect beyond line-of-sight around the world and into the Global Information Grid. MUOS' new commercial, cellular-based capabilities include simultaneous, crystal-clear voice, video and mission data, over a secure high-speed Internet Protocol-based system.  

Launch Notes: MUOS-5 will mark the ULA's fourth launch of 2016 and the 63rd Atlas V since the vehicle's inaugural launch in August 2002. MUOS-5 will be the seventh mission to launch in the 551 configuration; other missions launched in this configuration include four previous MUOS missions as well as the New Horizons mission to Pluto and the Juno mission to Jupiter.

Цитировать (https://img.novosti-kosmonavtiki.ru/185659.jpg) James Dean Подлинная учетная запись ‏@flatoday_jdean  (https://twitter.com/flatoday_jdean)  
ULA has pushed back MUOS-5 launch a week, to NET May 12, to allow more time to review early RD-180 shutdown during Atlas V/OA-6 launch.

ЦитироватьNew target date for next Atlas 5 launch             
 April 12, 2016 (http://spaceflightnow.com/2016/04/) Justin Ray (http://spaceflightnow.com/author/justin-sfn-ray/)
 (https://img.novosti-kosmonavtiki.ru/154927.jpg) (https://img.novosti-kosmonavtiki.ru/154927.jpg)
File photo of Atlas 5 first stage in ASOC. Credit: NASA-KSC

CAPE CANAVERAL — As the internal investigation continues into the first stage performance trouble on the last Atlas 5 rocket launch, the next mission on the manifest has slipped to May 27.
Originally planned for May 5, the flight of the Navy's fifth and final planned Mobile User Objective System communications satellite has been postponed twice while engineers work to determine the exact cause of the anomaly.
The Atlas 5 rocket that launched the commercial Orbital ATK resupply ship to the International Space Station on March 22 experienced as early cutoff to the first stage by six seconds due to a "fuel system" problem.
The Centaur upper stage burned for a minute longer than scheduled to make up the velocity shortfall, ultimately achieving the correct orbit and deploying Cygnus.
The cargo freighter successfully rendezvoused with the space station and delivered over 7,000 pounds of supplies.
But needing to determine root cause of the premature first stage shutdown and devise any corrective actions on the following rockets led officials to delay the MUOS No. 5 launch, initially to May 12 and now to May 27.
Stacking of the rocket has not yet started the Vertical Integration Facility. The first stage remains at the Atlas Spaceflight Operations Center high bay.
The Lockheed Martin-built MUOS spacecraft remains at the Astrotech processing facility in Titusville.

ЦитироватьSalo пишет:
http://spaceflightnow.com/2016/04/12/new-target-date-for-next-atlas-5-launch/

ЦитироватьWed Apr 13, 2016 2:13pm EDT  
 United Launch Alliance suspends Atlas 5 flights
 
 United Launch Alliance said on Wednesday its Atlas 5 rocket will need to be repaired before flights resume following an early engine shutdown on its last mission.
"There will be corrective action," Tory Bruno, chief executive of the Lockheed Martin-Boeing partnership told Reuters in an interview at the Space Symposium in Colorado Springs, Colorado.
"I'm still confident that we're going to get all the missions off within a year, but there's going to be a little shuffling around," Bruno said.
ULA currently holds a monopoly on launching U.S. military and national security payloads. (Reporting By Irene Klotz; Editing by Chris Reese)

Цитировать (https://img.novosti-kosmonavtiki.ru/185659.jpg) James Dean ‏@flatoday_jdean  (https://twitter.com/flatoday_jdean)  27 апр. (https://twitter.com/flatoday_jdean/status/725328007708205057)
While we await RD-180 investigation status, Atlas V booster has gone vertical at LC41, solids are being attached for MUOS-5 launch date TBD.

Цитировать (https://img.novosti-kosmonavtiki.ru/185455.jpg) Mike Gruss ‏@Gruss_SN  (https://twitter.com/Gruss_SN)  6 ч.6 часов назад (https://twitter.com/Gruss_SN/status/726035376947781632)  
ULA says MUOS-5 now targeted for launch in early summer. Anomaly on Atlas 5 narrowed to RD-180 Mixture Ratio Control Valve.
 
  (https://img.novosti-kosmonavtiki.ru/185659.jpg) James Dean ‏@flatoday_jdean  (https://twitter.com/flatoday_jdean)  6 ч.6 часов назад (https://twitter.com/flatoday_jdean/status/726034347199975425)  
ULA says valve caused RD-180's early shutdown during OA-6; all engines being inspected; MUOS-5 launch targeted for "early summer."

ЦитироватьCAPE CANAVERAL — The revised Atlas 5 rocket firing order includes two national security missions this summer before launching NASA's daring asteroid sampler mission in September as originally planned.
That's the schedule the United Launch Alliance managers have devised to get their workhorse booster flying again after pausing to review a valve problem on the most recent flight.
Although successfully placing the commercial Cygnus cargo freighter into orbit for the International Space Station and customer Orbital ATK on March 22, an anomaly with the Mixture Ration Control Valve on the first stage reduced the flow of RP-1 kerosene fuel.
Engineers are developing an inspection plan to examine the valve and actuator now that the next rocket has been hoisted vertically atop its mobile launcher platform. The checks will verify the valve assembly meets engineering requirements.
That next launch is targeted for June 24 using the most powerful version of the Atlas 5, known as the 551 configuration, with five side-mounted solid boosters for two-and-a-half million pounds of liftoff thrust.
The payload is the U.S. Navy's Mobile User Objective System satellite No. 5, the final piece of the planned global constellation to provide voice, data and video communications to troops on the move.
Stacking of the vehicle began on April 22 at the Vertical Integration Facility at Cape Canaveral's Complex 41. Last week was spent attaching all five of the solid rocket boosters, and the Centaur upper stage was mated on Monday.

ЦитироватьAtlas V to Launch the Fifth Mobile User Objective System (MUOS-5)
(https://img.novosti-kosmonavtiki.ru/235317.jpg)
Rocket/Payload: An Atlas V 551 will launch the U.S. Navy's fifth Mobile User Objective System (MUOS-5) satellite, built by Lockheed Martin.

Date/Site/Launch Time: Friday, June 24, 2016, from Space Launch Complex-41 at Cape Canaveral Air Force Station, Florida.

Mission Description: The fifth Mobile User Objective System (MUOS-5) satellite is the latest addition to a network of orbiting satellites and relay ground stations that is revolutionizing secure communications for mobile military forces. Users with operational MUOS terminals can seamlessly connect beyond line-of-sight around the world and into the Global Information Grid. MUOS' new commercial, cellular-based capabilities include simultaneous, crystal-clear voice, video and mission data, over a secure high-speed Internet Protocol-based system.

Launch Notes: MUOS-5 will mark the ULA's fourth launch of 2016 and the 63rd Atlas V since the vehicle's inaugural launch in August 2002. MUOS-5 will be the seventh mission to launch in the 551 configuration; other missions launched in this configuration include four previous MUOS missions as well as the New Horizons mission to Pluto and the Juno mission to Jupiter.

Launch Updates: To keep up to speed with updates to the launch countdown, dial the ULA launch hotline at 1-877-852-4321 or join the conversation at www.facebook.com/ulalaunch (https://www.facebook.com/ulalaunch), twitter.com/ulalaunch (https://twitter.com/ulalaunch) and instagram.com/ulalaunch (https://instagram.com/ulalaunch). Hashtags: #MUOS, #AtlasV          

ЦитироватьULA also has confirmed a June 24 date for the next launch of its Atlas V rocket, which will fly from Launch Complex 41 in its most powerful configuration.
Five solid rocket boosters will combine with the rocket's Russian RD-180 main engine to produce about 2.5 million pounds of thrust, lifting a heavy Navy communications satellite on its way to an orbit more 22,300 miles over the equator.
Liftoff is scheduled for 10:30 a.m., at the opening of a 44-minute window.
Once planned for early May, ULA has delayed the mission about seven weeks due to an early engine shutdown during the most recent Atlas V flight on March 22.
The RD-180 shut down six seconds too soon during that launch of International Space Station supplies, but the upper-stage engine burned for an extra minute to successfully complete the mission.
ULA engineers concluded a faulty valve prevented the main engine from burning enough kerosene fuel, and planned to inspect their entire engine inventory for any similar flaws.
Amid that work, the rocket now targeting a June 24 launch has been stacked in its processing tower and awaits delivery of the Navy's fifth Mobile User Objective System satellite.
After the delay, ULA is sorting out the timing of as many as nine more missions it could launch this year from Cape Canaveral and California.

Цитировать (https://img.novosti-kosmonavtiki.ru/185659.jpg) James Dean ‏@flatoday_jdean  (https://twitter.com/flatoday_jdean)  4 ч4 часа назад (https://twitter.com/flatoday_jdean/status/742753614268092416)  
Lockheed reports Navy's 5th #MUOS (https://twitter.com/hashtag/MUOS?src=hash) satellite was encapsulated June 4 in preparation for June 24 launch from Cape on Atlas V (551).

ЦитироватьPhotos: Navy satellite encapsulated and then mated to Atlas 5 rocket for launch             
 June 15, 2016 (http://spaceflightnow.com/2016/06/) Justin Ray (http://spaceflightnow.com/author/justin-sfn-ray/)
 
The U.S. Navy's Mobile User Objective System communications satellite No. 5 was encapsulated in the United Launch Alliance Atlas 5 rocket's payload fairing on June 4 at the Astrotech processing facility in Titusville, Florida. The 18-foot-diamter shroud covers the satellite during the initial minutes of flight as the 206-foot-tall rocket climbs through the atmosphere.
On June 13, the satellite was transported to Cape Canaveral's Complex 41 and hoisted atop the Atlas-Centaur rocket at the Vertical Integration Facility to complete assembly of the launcher.
Launch is planned for June 24 during a 44-minute window of 10:30 to 11:14 a.m. EDT (1430-1511 GMT).
Photo credit: United Launch Alliance
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ЦитироватьСМИ: ракету Atlas V с доработанным двигателем планируют запустить 24 июня
10:04 17.06.2016
 
МОСКВА, 17 июн — РИА Новости. США планируют 24 июня пуск ракеты Atlas V после доработки российского двигателя, передает информационный портал Spacenews (http://spacenews.com/) со ссылкой на компанию-владельца ракеты United Launch Alliance (ULA).
Atlas V оснащена российскими двигателями РД-180. В США их поставляет НПО "Энергомаш". ULA 15 июня сообщила, что российская компания НПО "Энергомаш" доработала клапан регулятора состава топливной системы MRCV в ракетном двигателе РД-180 после нештатной ситуации при запуске американской ракеты Atlas V в марте.
"Atlas V возвращается к полету, запланированному на 24 июня вместе с пятью военными спутниками связи. Пуск планируется осуществить в окне между 10.30 и 11.14 утра по североамериканскому времени с 41 стартового комплекса на мысе Канаверал", — говорится в сообщении Spacenews.
Как сообщалось ранее, в ходе состоявшегося 23 марта запуска корабля Cygnus к МКС первая ступень ракеты Atlas V, оснащенная российским двигателем РД-180, отделилась на 6 секунд раньше, чем планировалось. Тем не менее, корабль удалось успешно доставить на орбиту.

Цитировать"Atlas V возвращается к полету, запланированному на 24 июня вместе с пятью военными спутниками связи

ЦитироватьСтарый пишет:

Цитировать"Atlas V возвращается к полету, запланированному на 24 июня вместе с пятью военными спутниками связи

:)   :)   :)

ЦитироватьApollo13 пишет:

ЦитироватьСтарый пишет:

Цитировать"Atlas V возвращается к полету, запланированному на 24 июня вместе с пятью военными спутниками связи

:)   :)   :)  

Это уже супертяж какой-то  :)

ЦитироватьWeather forecast looks good for Friday's Atlas 5 rocket launch             
 June 20, 2016 (http://spaceflightnow.com/2016/06/) Justin Ray (http://spaceflightnow.com/author/justin-sfn-ray/)            
 (https://img.novosti-kosmonavtiki.ru/154968.jpg) (http://spaceflightnow.com/wp-content/uploads/2016/06/av_muos4_weather.jpg)
File photo of the last Atlas/MUOS launch in September. Credit: ULA

CAPE CANAVERAL — Air Force meteorologists are giving good odds of acceptable weather conditions for the United Launch Alliance Atlas 5 rocket to fly Friday morning from Cape Canaveral to put a Navy mobile communications satellite into orbit.
Liftoff from Complex 41 is scheduled during a 44-minute window stretching from 10:30 to 11:14 a.m. EDT (1430-1514 GMT).
In their initial launch weather outlook issued this morning, forecasters are concerned only about cumulus clouds. They say thunderstorms won't fire up until after the launch window ends.
There is an 80 percent percent of favorable conditions.
(https://img.novosti-kosmonavtiki.ru/154994.jpg) (https://img.novosti-kosmonavtiki.ru/154994.jpg)
"For MLP roll Thursday, light southerly to southwesterly winds are expected through the roll period. By late morning and with diurnal heating, winds become on-shore as the seabreeze develops and serves as a focus for showers and isolated thunderstorms near the coast before transitioning inland by early to mid-afternoon," Air Force weather forecasters say.
"On launch day, similar conditions persist with late morning and early afternoon showers and isolated thunderstorms developing near the coast and migrating inland with the seabreeze early to mid-afternoon. Light southwesterly winds during the count become southerly during the window with gusts in the low teens."
The launch window specifics include just some scattered low- and high-level clouds, good visibility, southerly winds of 10 to 13 knots and a temperature of 85 degrees F.
If the launch slips to Saturday morning for some reason, similar conditions are expected with 80 percent odds of acceptable weather.

Цитировать (https://img.novosti-kosmonavtiki.ru/185659.jpg) James Dean Подлинная учетная запись ‏@flatoday_jdean  (https://twitter.com/flatoday_jdean)
Weather forecast 80% favorable for 10:30am ET Friday launch of Atlas V, #MUOS (https://twitter.com/hashtag/MUOS?src=hash)-5: http://1.usa.gov/28L9KtH  (https://t.co/05oSTPIM7G). Window open to 11:14am.

ЦитироватьAtlas 5 launching MUOS 5 for mobile forces across all branches of U.S. military             
 June 21, 2016 (http://spaceflightnow.com/2016/06/) Justin Ray (http://spaceflightnow.com/author/justin-sfn-ray/)
 (https://img.novosti-kosmonavtiki.ru/154986.jpg) (http://spaceflightnow.com/wp-content/uploads/2016/06/muos5_lm.jpg)
MUOS 5 in the factory. Credit: Lockheed Martin

CAPE CANAVERAL — For the fifth time in four years, a massive U.S. Navy satellite will launch atop an Atlas 5 rocket on Friday to finish the military's new $7.7 billion mobile communications framework 22,300 miles in space.
Liftoff of the United Launch Alliance rocket fr om Complex 41 at Cape Canaveral in Florida is scheduled during a 44-minute window stretching fr om 10:30 to 11:14 a.m. EDT (1430-1514 GMT).
The rocket will head eastward along an initial flight azimuth of 94.58 degrees.
It will mark the 645th launch for the Atlas program since 1957, the 350th Atlas launch from Cape Canaveral and the 234th Atlas-Centaur rocket.
Weather forecasters give an 80 percent chance of favorable conditions, saying that summertime thunderstorms shouldn't fire up until after the launch window.
The MUOS satellite No. 5 will augment the globe-spanning constellation of Mobile User Objective System spacecraft as an in-orbit spare, joining four earlier craft launched by Atlas since 2012 that comprise the primary fleet.
"This launch is a significant event for the entire MUOS team because it will complete the five-satellite constellation. Not only will we have global coverage and further north and south towards the poles than ever before, but we also will have the assurance of an on-orbit spare," said Navy Capt. Joe Kan, program manager for the Communications Satellite Program Office and MUOS program manager. "If anything should happen to one of the four satellites in orbit, we would be prepared to maintain coverage around the world."
 (https://img.novosti-kosmonavtiki.ru/154988.jpg) (https://img.novosti-kosmonavtiki.ru/154988.jpg)
An artist's concept of MUOS 5 in orbit. Credit: Navy

The network will enable secure phone calls, classified data transfers and video on demand by military forces aboard ships, submarines, aircraft and land vehicles, plus terminals in the hands of troops while on the move.
MUOS uses Internet Protocol versions 4 and 6 (IPv4/IPv6) to give the warfighter worldwide roaming connectivity to the Global Information Grid.
"This network access for deployed tactical users will allow the exchange of critical situational awareness and targeting information," said Navy Commander Peter Sheehy, principal assistant program manager of MUOS.
"As a Naval pilot, MUOS will really bring that expanded communications chain and allow us to coordinate with forward air controllers, those tactical controllers who need air support, at a much greater range. So it will be less time over the target area. We will be able to get there, provide the support and leave."
This launch comes after engineers traced the first stage performance trouble on the last Atlas launch to a misbehaving fuel mixture control valve. The hardware on the MUOS 5 rocket has been tweaked to prevent a reoccurrence.
The United Launch Alliance vehicle, flying in its most powerful 551 configuration with five solid rocket boosters flanking the first stage, will lift the 15,000-pound payload into a high-perigee geosynchronous transfer orbit.
The 551 rocket variant has flown six times in 10 years, launching NASA's New Horizons probe in 2006 to Pluto and beyond, the agency's Juno spacecraft in 2011 that will enter orbit around Jupiter on July 4 and the MUOS fleet.
The Atlas 5 rocket with MUOS 5 aboard stands 206 feet tall and will weigh 1.3 million pounds at launch.
 (https://img.novosti-kosmonavtiki.ru/154985.jpg) (http://spaceflightnow.com/wp-content/uploads/2016/06/muos1234.jpg)
Launches of MUOS 1 thru 4. Credit: United Launch Alliance

The MUOS constellation is designed to extend narrowband communications services for the U.S. military beyond 2025. The satellites, built by Lockheed Martin in Sunnyvale, California, offer both Ultra High Frequency communications provided via older spacecraft and a new rugged smartphone system for mobile forces.
"The legacy satellite communication system allowed users to 'talk' as long as they were within the same satellite footprint," said Kan. "MUOS allows troops all over the world to talk, text and share mission data seamlessly without having to worry about wh ere they are in relation to a satellite."
Coverage to legacy users transmit through a 17.7-foot-diameter reflector on the craft and the advanced, multi-beam features of MUOS to significantly increase the transmission capacity over the Navy's previous satellites will use a large 46-foot reflector on MUOS.
"The legacy payload we have on MUOS satellites allows a smooth transition to a newer, better MUOS capability. We are benefitting from providing the legacy channels for current users and we are exploring all the capability that MUOS has to offer," said Nina Tran, the Navy program office's space division director.
As the spare satellite for the constellation, the unique mission for MUOS 5 immediately provides the legacy UHF communications while waiting for a future need to replace one of its sister-craft in the smartphone system.
This MUOS satellite will reside 22,300 miles over the Indian Ocean, alongside MUOS 4.
 (https://img.novosti-kosmonavtiki.ru/154989.jpg) (https://img.novosti-kosmonavtiki.ru/154989.jpg)
An artist's concept of the MUOS constellation. Credit: Navy

All U.S. military forces rely upon Navy satellites for Ultra High Frequency narrowband communications. UHF offers small, portable units that forces can carry into battle and the frequency enables communications in urban canyons and mountainous terrain, penetrating foliage and transmitting through bad weather.
The MUOS architecture includes the five satellites, four ground stations located in Western Australia, Sicily, Virginia and Hawaii and the complex software to make the system function.
"The nice thing about MUOS is that the ground system and terminals contain all the switching and routing technology," said Jim Parsons, the Navy program office's technical director.
"The satellite remains unchanged over time and can allow technology insertion into the ground stations and the waveform over time to increase capability without having to make any satellite changes."
After the geosynchronous orbit is reached, MUOS 5 will undergo critical deployments of the solar arrays to stretch 94 feet tip-to-tip and unfurling the two gold mesh antennas.
MUOS No. 1 was launched Feb. 24, 2012 aboard an Atlas 5 and serves as the Pacific Ocean satellite. MUOS No. 2 launched July 19, 2013 aboard another Atlas 5 and serves as the continental U.S. satellite. MUOS No. 3 went up atop an Atlas 5 on Jan. 20, 2015 to cover the Atlantic Ocean region. An Atlas 5 launched MUOS No. 4 on Sept. 2, 2015 to serve the Indian Ocean region.
The Navy has completed acceptance testing and activated UHF service aboard the first four MUOS satellites. MUOS 5 should be activated by Christmas.
Deployment of the radios and terminals for the smartphone system will be occurring over the next two years.
Discussions are underway with allied nations — Canada, Australia, the United Kingdom and the Netherlands — about buying into the network to gain access to the whole MUOS system. An additional satellite would be built with international funding to increase the MUOS capacity, if more countries join.
 (https://img.novosti-kosmonavtiki.ru/154967.jpg) (https://img.novosti-kosmonavtiki.ru/154967.jpg)
The Atlas 5 rocket and MUOS 5. Credit: United Launch Alliance

A typical Atlas 5 launch to geosynchronous transfer orbit, the standard dropoff point for communications satellites, uses just two firings by the Centaur to achieve the highly elliptical, egg-shaped orbit to deploy the payloads. From there, the satellites use their own engines in the subsequent days to fly into the operational locations 22,300 miles above the equator.
But the sizable MUOS drove planners to create a three-burn launch profile for the payload to use all of the available performance from the Atlas-Centaur that in turns saves the satellite's precious onboard fuel supply for maneuvering over its 15-year life.
The three burn mission design for MUOS provides 1,000 pounds greater lift capability than a conventional two-burn geosynchronous transfer orbit.
A preliminary parking orbit almost 400 miles high, tilted 28 degrees to the equator, is achieved just over 12 minutes into the launch as the Centaur shut down the engine and enters a brief cruise across the central Atlantic.
Just off the western coast of Africa, the Centaur main engine then restarts about 20 minutes after launch to propel MUOS to the second step on its way to the planned orbit. This six-minute burn puts the rocket into an elliptical 120 by 21,400 mile orbit inclined 26 degrees.
Then begins a lengthy coast away from the planet for two-and-a-half hours, flying to a point about 17,000 miles above the far eastern Indian Ocean wh ere the final burn occurs.
One last push is given nearly two hours and 49 minutes into flight to raise the orbit's low point and reduce the inclination closer to the equator. The burn, lasting a minute, places the payload into a high-perigee geosynchronous transfer orbit of 2,387 by 22,187 statute miles at an inclination of 19.10 degrees.
The satellite separates from Centaur some two hours and 54 minutes after liftoff to complete the launch, or 1:24 p.m. EDT (1724 GMT) given an on-time liftoff.
 (https://img.novosti-kosmonavtiki.ru/154987.jpg) (http://spaceflightnow.com/wp-content/uploads/2016/06/MUOS5_MissionArt.jpg)
The MUOS 5 launch poster. Credit: United Launch Alliance

ATLAS/MUOS 5 ASCENT TIMELINE
T-0:00:02.7 Main Engine Start
 T+0:00:01.1 Liftoff
 T+0:00:49.3 Max Q
 T+0:01:48.7 Jettison 1-2 SRBs
 T+0:01:50.2 Jettison 3-4-5 SRBs
 T+0:03:27.8 Nose Cone Jettison
 T+0:03:32.8 Load Deck Jettison
 T+0:04:25.6 Main Engine Cutoff
 T+0:04:31.6 Stage Separation
 T+0:04:41.5 Centaur Ignition 1
 T+0:12:28.4 Centaur Cutoff 1
 T+0:20:27.6 Centaur Ignition 2
 T+0:26:14.5 Centaur Cutoff 2
 T+2:48:40.4 Centaur Ignition 3
 T+2:49:38.7 Centaur Cutoff 3
 T+2:53:17.7 Spacecraft Separation
The Launch Readiness Review is planned for Wednesday, followed by rollout of the rocket to the launch pad on Thursday morning. The countdown sequence Friday morning lasts seven hours to prep the the two-stage vehicle and fuel it with 66,000 gallons of cryogenics.
The MUOS No. 5 launch will be the 63rd Atlas 5 flight and the third of 10 planned this year.
For United Launch Alliance, it'll mark the 108th flight for the company in 9 years and the fifth of 2016.

Цитировать (https://img.novosti-kosmonavtiki.ru/185645.jpg) ULA ‏@ulalaunch  (https://twitter.com/ulalaunch)  4 ч.4 часа назад (https://twitter.com/ulalaunch/status/745648922195017730)
The ULA Launch Readiness Review is complete! #AtlasV (https://twitter.com/hashtag/AtlasV?src=hash) set to launch #MUOS (https://twitter.com/hashtag/MUOS?src=hash)-5 June 24. 44-min window opens @ 10:30amEDT http://bit.ly/muos5 (https://t.co/QftSE6dkxN)

Цитироватьhttp://www.navy.mil/submit/display.asp?story_id=95320
Counting Down to Launch: 5th MUOS Satellite Poised to Complete Constellation

Release Date: 6/22/2016

By Space and Naval Warfare Systems Command Public Affairs
CAPE CANAVERAL, Fla. (NNS) -- The Navy's fifth Mobile User Objective System (MUOS) satellite is awaiting countdown for launch June 24, during a window from 10:30-11:14 a.m. EDT.

Спойлер

A live launch broadcast will begin at 10:10 a.m. EDT and will be viewable as an online webcast at http://www.ulalaunch.com.

In partnership with the Air Force Space and Missile Systems Center and the 45th Space Wing, the Navy Communications Satellite Program Office (PMW 146) is prepared to launch the MUOS-5 satellite, an on-orbit spare that will complete the five-satellite constellation. MUOS provides improved secure satellite communications around the world via an Internet Protocol-based system, equipping tactical and mobile warfighters with cell phone-like capabilities such as crystal-clear voice quality, excellent call completion rates and the ability to use voice and data simultaneously.

"With this fifth satellite, MUOS completes the current constellation bringing additional UHF (ultra-high frequency) capacity, as well as providing the assurance of an on-orbit spare for the new Wideband Code Division Multiple Access capability," said Capt. Joe Kan, PMW 146 program manager.

MUOS is operational today, supporting unrestricted operations via the satellites' legacy payloads that provide ultra-high frequency satellite communications for the DoD and mitigate potential gaps in UHF communications capabilities. The system's wideband code division multiple access (WCDMA) capability has been demonstrated through exercises with warfighters on terminal platforms from the Army, Air Force, Coast Guard and Navy--to include troops on the move, C-17 aircraft in flight, Coast Guard vessels in the north and south polar regions and the Navy's OE-538 submarine antenna.

"As legacy communications systems continue to age, we recognize the imperative to continue maturing MUOS WCDMA and support terminal development, testing, certification and fielding efforts to deliver end-to-end MUOS WCDMA capability," said Jarratt Mowery, director of end-to-end system testing. "As we move forward with continued testing and training, our end-users will have opportunities to assess and provide recommendations for improving the system--helping us ultimately deliver MUOS WCDMA capabilities to the warfighters as quickly and effectively as possible."

MUOS provides satellite communications in the UHF narrowband spectrum, which represents more than 50 percent of all DoD satellite communication users. The system is designed to support users who require greater mobility, higher data rates, access to Defense Information Systems Network voice and data services and improved operational availability.

The first four MUOS satellites are in their operational slots and providing legacy communications capability from their geosynchronous orbits. The MUOS constellation and associated network will extend narrowband communications availability well past 2025.

The Navy's Program Executive Office for Space Systems, located at the Space and Naval Warfare Systems Command in San Diego, is responsible for the MUOS program. For more information, visit www.public.navy.mil/spawar/PEOSpaceSystems/

For more information, visit www.navy.mil, www.facebook.com/usnavy, or www.twitter.com/usnavy.

For more news from Space and Naval Warfare Systems Command, visit http://www.navy.mil/local/spawar/.

[свернуть]

Цитировать https://twitter.com/ulalaunch/status/746022754374266880
ULA ‏@ulalaunch
 (https://twitter.com/ulalaunch)On the launch pad! Some pics from this morning. ULA's #AtlasV (https://twitter.com/hashtag/AtlasV?src=hash) is set to launch the #MUOS (https://twitter.com/hashtag/MUOS?src=hash)-5 mission for @SPAWARHQ
 (https://twitter.com/SPAWARHQ)(https://img.novosti-kosmonavtiki.ru/158491.jpg)
(https://img.novosti-kosmonavtiki.ru/158492.jpg)

ЦитироватьA0828/16 - ATTENTION AIRLINE DISPATCHERS, SOME OPERATORS APPEAR TO BE USING THE NOTAM BEGINNING TIME TO START FILING ROUTES AROUND THE LAUNCH OPERATION. LAUNCH HAZARD AREA TIMES IN THE NOTAM ARE ALTITUDE SPECIFIC AND DO NOT AFFECT ALL OPERATIONS. PART 2 OF THIS NOTAM CONTAINS A BREAKDOWN OF THE TIMES FOR PRE-LAUNCH AND LAUNCH CLOSURES. THE FOLLOWING IN USE FOR A MISSILE LAUNCH/SPLASH DOWN. DURING THESE TIMES KZMA ARTCC/OAC, KZNY ARTCC/OAC AND TJZS ARTCC/OAC WILL NOT APPROVE IFR FLIGHT WITHIN 45NM OF THE AFFECTED OCEANIC STATIONARY RESERVATIONS WEST OF 6000W,50NM BETWEEN 6000W AND 5500W, AND 60NM EAST OF 5500W OR WITHIN AFFECTED WARNING AREA AIRSPACE.
 EFF: 1606241230 - 1606241559 W497A WEST OF 80 WEST, SFC-5000MSL
 EFF: 1606241230 - 1606241559 CAPE ATCAA, SFC-FL180
 EFF: 1606241400 - 1606241559 R2933, 5000MSL-UNL
 EFF: 1606241400 - 1606241559 R2934, SFC-UNL
 EFF: 1606241430 - 1606241559 LAUNCH HAZARD AREA A. FROM 2836N 8036W TO 2838N 8034W TO 2835N 8008W TO 2829N 7918W TO 2826N 7906W TO 2823N 7906W TO 2823N 7917W TO 2828N 8012W TO 2828N 8018W TO 2832N 8033W TO TO 2833N 8035W TO POINT OF ORIGIN, SURFACE-UNLIMITED. LAUNCH HAZARD AREA B. FROM 2820N 7817W TO 2816N 7745W TO 2813N 7745W TO 2817N 7817 TO POINT OF ORIGIN. SURFACE TO UNLIMITED. LAUNCH HAZARD AREA C. FROM 2702N 7000W TO 2650N 6839W TO 2641N 6839W TO 2656N 7000W TO POINT OF ORIGIN, SURFACE TO UNLIMITED. LAUNCH HAZARD AREA D. FROM 2150N 5011W TO 2107N 4807W TO 2059N 4807W TO 2145N 5015W TO POINT OF ORIGIN, SURFACER TO UNLIMITED.
 IN THE INTEREST OF SAFETY, ALL NONPARTICIPATING PILOTS ARE STRONGLY ADVISED TO AVOID THE ABOVE AREAS, EXCEPT AS NOTED BELOW FOR FLIGHT PLAN FILING PURPOSES. THE FOLLOWING RESTRICTIONS WILL BE IN EFFECT WITHIN KZMA KZJX KZNY TJZS FIRS. ALL TRAFFIC RALT MUST BE ESTIMATED TO CLEAR OCEANIC ALTRV(S) AT OR BEFORE 1606241425. KZNY REQUEST AIRCRAFT CERTIFIED FOR RNP 4/10 FILE ROUTES TO AVOID HAZARD AREAS C AND D ABOVE BY 25NM, AND NON CERTIFIED RNP 4/10 AIRCRAFT TO AVOID AREAS C AND D BY 45NM DURING THE HAZARD PERIOD 1606241430 TO 1606241559. ATC WILL ISSUE FLOW RESTRICTIONS FOR DOMESTIC REROUTES TO AVOID IN USE. THE FOLLOWING INTERNATIONAL ROUTES WILL BE IMPACTED: AR3, AR6, AR15, AR17, AR19, AR21, AR22, G446,L435, L453, L454, L455, L463, M331, M593(NON-RNP 4/10 ONLY), M595, Y585. HIBAC TRANS. FOR SHFTY STAR. FOR FLIGHTS FILED OVER OMN ON THE FOLLOWING STARS: FISEL, GISSH, FRWAY, TUXXI, CAYSL EXPECT OMN J79 TRV AND TRV TRANSITION. HIBAC TRANS. FOR SHFTY STAR CLOSED. REROUTES FOR "AR" ROUTES WILL BE CONTAINED IN FAA ATCSCC(ATC COMMAND CENTER) ADVISORY. FOR FLIGHTS THAT HAVE NOT FILED AROUND OCEANIC HAZARD AREAS TRANSITING FROM MIAMI/SAN JUAN FIR TO NEW YORK EXPECT THE FOLLOWING INTERNATIONALREROUTES: G446 OMALY CASPR G446 AND REVERSE L453 LNHOM L452 KASAR ALOBI L453 L454 LNHOM L452 KASAR GRAMN L454 L455 HANCY L456 MEGGG TASNI L455 L463 SOBND CASPR BAAGR L463 NOBND BAAGR CASPR AR3 M331 MILLE M330 DUNIG GECAL M331 M593 (NON-RNP CERTIFIED)MILLE M330 DUNIG AMENO M595 MLLER M594 KOZIK AYTTE Y585 CVIKK TRV J79 OMN AND REVERSE PART OF 6. SEE TEXT, 24 JUN 12:30 2016 UNTIL 24 JUN 15:59 2016. CREATED: 22 JUN 16:13 2016

A0823/16 - STATIONARY ALTITUDE RESERVATION CAPE ATCAA ACT FOR A ROCKET LAUNCH. MIAMI CENTER WILL NOT APPROVE IFR FLIGHTS AND VFR SHOULD EXERCISE EXTREME CAUTION WITHIN AN AREA DEFINED AS 2847N08050W TO 2847N08021W TO 2847N07950W TO 2825N07950W TO 2825N08030W TO 2825N08041W TO 2831N08044W TO 2838N08047W TO BEGINNING. THIS ALTRV ENCOMPASSES PORTIONS OF R2933, R2934, AND W497A. SFC - FL180), 24 JUN 12:30 2016 UNTIL 24 JUN 15:59 2016. CREATED: 22 JUN 14:58 2016

!ISP 06/113 ZNY AIRSPACE UNMANNED ROCKET WI AN AREA DEFINED AS 5NM RADIUS OF GEE117024.5 (7.2NM NW PEO) SFC-FL180 DLY 1300-2200 1606241300-1606262200

!SUAE 06/999 ZMA AIRSPACE R2934 ACT SFC-UNL 1606241400-1606241559

NAVAREA IV 489/16
 WESTERN NORTH ATLANTIC.
ROCKETS.
1. HAZARDOUS OPERATIONS 241430Z TO 241559Z JUN,
ALTERNATE 251426Z TO 251555Z JUN
IN AREAS BOUND BY:
 A. 28-36N 080-36W, 28-38N 080-34W,
 28-35N 080-08W, 28-29N 079-18W,
 28-26N 079-06W, 28-23N 079-06W,
 28-23N 079-17W, 28-28N 080-12W,
 28-28N 080-18W, 28-32N 080-33W,
 28-33N 080-35W.
 B. 28-20N 078-17W, 28-16N 077-45W,
 28-13N 077-45W, 28-17N 078-17W.
C. 27-02N 070-00W, 26-50N 068-39W,
26-41N 068-39W, 26-56N 070-00W.
 D. 21-50N 050-11W, 21-07N 048-07W,
 20-59N 048-07W, 21-45N 050-15W.
 2. CANCEL THIS MSG 251655Z JUN 16.//
 Authority: EASTERN RANGE OP A7085 141308Z JUN 16.
 Date: 200409Z JUN 16
 Cancel: 25165500 Jun

Цитироватьoby1 пишет:
не вижу наклейки Энергомаш

Цитировать (https://img.novosti-kosmonavtiki.ru/185659.jpg) James Dean ‏@flatoday_jdean  (https://twitter.com/flatoday_jdean)  46 мин.46 минут назад (https://twitter.com/flatoday_jdean/status/746315886512979968)  
Countdown has resumed from planned hold at T-2 hours...on track for 10:30am ET launch of #MUOS (https://twitter.com/hashtag/MUOS?src=hash)-5 from LC41.
 
  (https://img.novosti-kosmonavtiki.ru/185659.jpg) James Dean ‏@flatoday_jdean  (https://twitter.com/flatoday_jdean)  48 мин.48 минут назад (https://twitter.com/flatoday_jdean/status/746315551430021120)  
ULA "go" for cryogenic fueling of Atlas V for 10:30am ET launch of #MUOS (https://twitter.com/hashtag/MUOS?src=hash)-5 from Cape Canaveral AFS.

Цитировать1415 GMT (10:15 a.m. EDT)
 Here's a look at some stats about today's mission. This will be:

[/li]
• The 645th launch for Atlas program since 1957
• The 350th Atlas launch from Cape Canaveral
• The 234th mission of a Centaur upper stage
• The 211th use of Centaur by an Atlas rocket
• The 469th production RL10 engine to be launched
• The 12th RL10C-1 engine launched
• The 69th flight of the RD-180 main engine
• The 63rd launch of an Atlas 5 since 2002
• The 26th Air Force mission for an Atlas 5
• The 95th Evolved Expendable Launch Vehicle flight
• The 108th United Launch Alliance flight overall
• The 55th Atlas 5 under United Launch Alliance
• The 21st 500-series flight of the Atlas 5
• The 7th Atlas 5 to fly in the 551 configuration
• The 5th MUOS satellite to launch
• The 3rd Atlas 5 launch of 2016
  

1414 GMT (10:14 a.m. EDT)
 The vehicle's three cryogenic tanks are at flight level.
 
1412 GMT (10:12 a.m. EDT)
 The MUOS 5 satellite is switching to internal power for launch.
 
1411 GMT (10:11 a.m. EDT)
 T-minus 4 minutes and holding. The countdown has entered the planned 15-minute hold to give the launch team a chance to review all systems before pressing ahead with liftoff.
 
1410 GMT (10:10 a.m. EDT)
 T-minus 5 minutes. Standing by to go into the final built-in hold.
 
1401 GMT (10:01 a.m. EDT)
 Weather is observed GO for liftoff based on the current conditions and forecast to stay favorable for a 10:30 a.m. EDT (1430 GMT) launch today.
Skies are clear, radar is clear and winds are 4 knots.

1400 GMT (10:00 a.m. EDT)
 Just 30 minutes until liftoff time. Today's launch is the fifth for the Navy's new Mobile User Objective System satellite constellation to provide mobile communications to U.S. military forces.
In its launch configuration atop the Atlas rocket with the two power-generating solar arrays stowed on the sides and the umbrella reflectors folded up, MUOS stands 22 feet tall, 12 feet wide and 6 feet deep. The craft was built on Lockheed Martin's A2100 satellite design used by dozens of previous communications spacecraft.
Following separation from the launch vehicle nearly three hours after liftoff today, ground controllers will begin maneuvering MUOS 5 into geosynchronous orbit, deploying its power-generating solar arrays to span more than 90 feet, unfurling a pair of umbrella-like antenna reflectors on boom assemblies and fully checking out the onboard communications equipment.
Eight orbital raising burns are expected over the next 8-9 days, followed by the antenna reflector deploys, then a test program that Lockheed Martin will perform. The military will take control of the satellite in a few months to conduct its own acceptance evaluation before the craft enters UHF service.

1359 GMT (9:59 a.m. EDT)
 The fuel-fill sequence for the first stage main engine is starting.
 
1352 GMT (9:52 a.m. EDT)
 This is the fifth and final planned launch of a Mobile User Objective System spacecraft by the Navy.
MUOS No. 1 was launched Feb. 24, 2012 aboard an Atlas 5 and serves as the Pacific Ocean satellite.
MUOS No. 2 launched July 19, 2013 aboard another Atlas 5 and serves as the continental U.S. satellite.
MUOS No. 3 went up atop an Atlas 5 on Jan. 20, 2015 to cover the Atlantic Ocean region.
An Atlas 5 launched MUOS No. 4 on Sept. 2, 2015 to serve the Indian Ocean region.

1349 GMT (9:49 a.m. EDT)
 Weather odds have improved to 90 percent GO for launch today.
 
1345 GMT (9:45 a.m. EDT)
 Now 45 minutes from liftoff. Today marks the 63rd flight for Atlas 5, born of the Air Force's competition to develop next-generation Evolved Expendable Launch Vehicles. In its previous 62 missions since debuting in August 2002, the Atlas 5 has flown 24 flights dedicated to the Defense Department, 14 commercial missions, 12 for NASA and 12 with spy satellites for the National Reconnaissance Office.

Цитировать1440 GMT (10:40 a.m. EDT)
 T+plus 10 minutes. All systems reported stable as the Centaur fires to reach an initial Earth orbit.
 
1439 GMT (10:39 a.m. EDT)
 T+plus 9 minutes. The RL10C continues to perform well, burning liquid hydrogen and liquid oxygen propellants.
 
1438 GMT (10:38 a.m. EDT)
 T+plus 8 minutes, 20 seconds. Vehicle traveling at 15,087 mph.
 
1437 GMT (10:37 a.m. EDT)
 T+plus 7 minutes, 15 seconds. The rocket has performed a planned roll to improve antenna links with NASA's orbiting Tracking and Data Relay Satellite System.
 
1436 GMT (10:36 a.m. EDT)
 T+plus 6 minutes, 55 seconds. A look at first stage performance numbers show a nominal burn by the booster.
 
1436 GMT (10:36 a.m. EDT)
 T+plus 6 minutes. RL10C performing well.
 
1435 GMT (10:35 a.m. EDT)
 T+plus 5 minutes. Centaur engine readings look good as this burn gets underway.
 
1434 GMT (10:34 a.m. EDT)
 T+plus 4 minutes, 46 seconds. Centaur has ignited! The RL10C engine is up and running at full thrust for its first of three firings today to reach the intended geosynchronous transfer orbit.
 
1434 GMT (10:34 a.m. EDT)
 T+plus 4 minutes, 37 seconds. The Atlas 5's Common Core Booster first stage has been jettisoned, and the Centaur upper stage's liquid hydrogen and liquid oxygen systems are being readied for engine start.
 
1434 GMT (10:34 a.m. EDT)
 T+plus 4 minutes, 33 seconds. BECO. Booster Engine Cutoff is confirmed as the RD-180 powerplant on the first stage completes its burn. Standing by to fire the retro thrusters and separate the spent stage.
 
1433 GMT (10:33 a.m. EDT)
 T+plus 3 minutes, 40 seconds. The two-halves of the Atlas 5 rocket nose cone encapsulating the MUOS spacecraft have separated, exposed the satellite to space. Also jettisoned was the Forward Load Reactor, a two-piece deck that rings the Centaur stage to support the bulbous fairing during launch.
 
1433 GMT (10:33 a.m. EDT)
 T+plus 3 minutes, 30 seconds. The RD-180 main engine continues to fire normally, burning a mixture of highly refined kerosene and liquid oxygen.
 
1433 GMT (10:33 a.m. EDT)
 T+plus 3 minutes. The vehicle weighs just a quarter of what it did at liftoff.
 
1432 GMT (10:32 a.m. EDT)
 T+plus 2 minutes, 50 seconds. Reaction control system has been activated.
 
1432 GMT (10:32 a.m. EDT)
 T+plus 2 minutes, 40 seconds. Everything still looking good on the first stage as the rocket powers downrange on the thrust being produced by the main engine.
 
1432 GMT (10:32 a.m. EDT)
 T+plus 2 minutes, 30 seconds. Vehicle is right on course.
 
1431 GMT (10:31 a.m. EDT)
 T+plus 1 minute, 53 seconds. All five of the Aerojet Rocketdyne-made solid rocket motors have successfully separated fr om the Atlas 5, having completed their job of adding a powerful kick at liftoff.
 
1431 GMT (10:31 a.m. EDT)
 T+plus 93 seconds. Solid rocket booster burnout has occurred. But the spent motors will remain attached to the first stage for a few seconds, until the Atlas 5 reaches a point wh ere the airborne dynamic pressure reduces to an allowable level for a safe jettison.
 
1431 GMT (10:31 a.m. EDT)
 T+plus 60 seconds into this complex three-hour mission to deploy the Navy's fifth Mobile User Objective System communications satellite in a high-perigee geosynchronous transfer orbit.
 
1430 GMT (10:30 a.m. EDT)
 T+plus 51 seconds. A period of maximum dynamic pressure is being experienced by the rocket.
 
1430 GMT (10:30 a.m. EDT)
 T+plus 40 seconds. The main engine is throttling down to ease the stresses on the vehicle in the lower atmosphere.
 
1430 GMT (10:30 a.m. EDT)
 T+plus 36 seconds. Mach 1.
 
1430 GMT (10:30 a.m. EDT)
 T+plus 30 seconds. The vehicle is heading due eastward to reach a 28-degree inclination preliminary parking orbit 12 minutes from now.
 
1430 GMT (10:30 a.m. EDT)
 T+plus 15 seconds. Pitch, yaw and roll maneuvers are underway as the Atlas 5 thunders away from Cape Canaveral with its RD-180 engine and five solid rocket boosters burning.
 
1430 GMT (10:30 a.m. EDT)
 LIFTOFF! Liftoff of the Atlas 5 rocket to complete the Navy's mobile communications satellite constellation in the sky!

ЦитироватьWilliam Harwood ‏@cbs_spacenews  (https://twitter.com/cbs_spacenews) 5m ago (https://twitter.com/cbs_spacenews/status/746352101618515968)

A5/MUOS5: RD-180 burned full duration; no repeat of early cutoff like the one experienced during March launch

ЦитироватьThe most powerful version of the Atlas V available launched this morning, June 24th 2016 at 14:30 UTC, 10:30 Local time from Space Launch Complex 41 at Cape Canaveral in Florida. The nearly 63 meter tall rocket with Russian powered RD 180 engine and five solid rocket motors boosted the Mobile User Objective System 5 (MUOS-5) satellite into orbit for the US Navy. MUOS provides vital communications and connectivity to armed forces around the globe.

ЦитироватьПрол пишет:
5 лет - и группировка избыточного состава развернута. Можно только позавидовать, что у американской РКП есть заказчик с деньгами, знающий, чего хочет  :cry:  .

Цитироватьnapalm пишет:
и больным...

ЦитироватьПрол пишет:
...Можно только позавидовать, что у американской РКП есть заказчик с деньгами, знающий, чего хочет .

ЦитироватьThe spectacular image above was kindly made available to me by Paul Camilleri from Warners Bay in Australia. Taken around 18:03 UT using a 180 mm lens, it shows the just launched MUOS 5 satellite and the associated Centaur upper stage: the latter is venting fuel creating a "comet-like" cloud.

The image was made some 40 minutes after MUOS 5 separated from the Centaur stage (separation happened at ~17:23 UT). The two objects were at an altitude of ~30 000 km at that time, in a Geosynchronous Transfer Orbit (GTO).

ЦитироватьNavy's new MUOS 5 communications satellite experiences snag in space             
 July 8, 2016 (http://spaceflightnow.com/2016/07/) Justin Ray (http://spaceflightnow.com/author/justin-sfn-ray/)
 (https://img.novosti-kosmonavtiki.ru/155038.jpg) (http://spaceflightnow.com/wp-content/uploads/2016/07/muos5_factory.jpg)
MUOS 5 in the factory. Credit: Lockheed Martin

CAPE CANAVERAL — Trouble has befallen the U.S. Navy's new communications satellite that was launched fr om Cape Canaveral two weeks ago, suspending orbit raising maneuvers and leaving the craft half-way between its rocket deployment orbit and a circular geosynchronous orbit.
The $340 million Mobile User Objective System satellite No. 5, the last in the planned spacecraft series and the in-orbit spare for Navy's constellation, was successfully lofted into space June 24 by the United Launch Alliance Atlas 5 rocket.
MUOS 5 is designed to provide Ultra High Frequency communications to the U.S. military for the next 15 years over an area that extends from Africa to the Middle East to Asia.
But a yet-undisclosed "anomaly" has halted orbit raising, the Navy's Program Executive Office for Space Systems, which runs MUOS and is located at the Space and Naval Warfare Systems Command in San Diego, told Spaceflight Now this morning.
The satellite is more than 12,000 miles away from a usable orbital perch.
The nature of the anomaly, options to overcome the problem and when orbit raising could resume are details the Navy declined to reveal today.
 (https://img.novosti-kosmonavtiki.ru/154963.jpg) (http://spaceflightnow.com/wp-content/uploads/2016/06/13-2.jpg)
Launch of MUOS 5. Credit: Pat Corkery/Lockheed Martin

The most powerful version of the Atlas placed the 15,000-pound satellite into a customized high-perigee geosynchronous transfer orbit as planned, stretching from 2,379 by 22,219 miles at an inclination of 19.1 degrees.
From that highly elliptical preliminary orbit, the Lockheed Martin-built satellite would perform 7 firings of its Liquid Apogee Engine to raise the low point to circularize the orbit and reduce its orbital tilt closer to the equator.
But after an unspecified number of burns were completed, the trip to geosynchronous orbit was stopped, the Navy said in response to questions submitted by Spaceflight Now.
"The satellite experienced an anomaly that required the transfer maneuver to be temporarily halted," the Navy says.
"The Navy's Program Executive Office for Space Systems has reconfigured the satellite from orbital transfer into a stabilized, safe intermediate orbit to allow the MUOS team to evaluate the situation and determine options for proceeding."
MUOS 5 currently resides in an orbit of 9,471 by 22,185 miles at an inclination of 9.8 degrees, according to hobbyist observers tracking the satellite. It hasn't moved any higher in a week.
"To this point, MUOS 5 has completed 700 m/s out of the total approximately 1300 m/s velocity change required," said Ted Molczan, a respected satellite watcher.
The satellite is headed to a 5-degree inclined geosynchronous orbit wh ere it will match Earth's rotation and appear locked above one part of the world. That will be the Indian Ocean region for MUOS 5.
The pre-launch plan called for geosynchronous orbit to be reached and the satellite's solar arrays and two giant antenna reflectors be deployed within 9 days of launch, or by July 3.
"Nothing is more important to Lockheed Martin than mission success. We are working closely with our Navy customer to determine the cause of the anomaly," said Chip Eschenfelder, a Lockheed Martin spokesperson.
 (https://img.novosti-kosmonavtiki.ru/155039.jpg) (https://img.novosti-kosmonavtiki.ru/155039.jpg)
An illustration of the MUOS orbit raising plan. Credit: Lockheed Martin

MUOS spacecraft are equipped with a BT-4 main engine, made by IHI Aerospace of Tokyo, Japan. It is uses hydrazine fuel and nitrogen tetroxide to produce 100 pounds of thrust.
Previous satellites in the MUOS series performed 7 orbit raising burns ranging from 19 to 47 minutes in length to put the spacecraft into the proper geosynchronous orbit 22,300 miles up.
The MUOS 5 satellite also has 18 Aerojet Rocketdyne monopropellant hydrazine thrusters onboard for attitude control — a dozen 0.2-pound thrusters and six 5-pound thrusters.
After geosynchronous orbit is reached, Lockheed Martin initially positions the craft over the testing location in the mid-Pacific Ocean in view of a Hawaiian ground station. The company runs about three months of testing before the craft is relocated to its operational orbital slot and handed to the Navy for its months-long test program.
MUOS 5 is intended to operate over the Indian Ocean, alongside MUOS 4. The craft is scheduled to begin service by year's end to provide Ultra High Frequency communications services to the U.S. military. It also serves as an in-space spare satellite for the MUOS constellation's four primary craft providing mobile communications to a rugged smartphone network for forces on the move.
"MUOS 5 was launched as an on-orbit spare to provide immediate redundancy to the MUOS constellation, which is performing nominally," the Navy said today. "MUOS 5 is an on-orbit spare, and delay in reaching its test location will have no impact upon current legacy or Wideband Code Division Multiple Access satellite communications operations."
Coverage to legacy users will transmit through a 17.7-foot-diameter antenna on the satellite and the advanced, multi-beam features of MUOS to significantly increase the transmission capacity over the Navy's previous satellites will use a 46-foot antenna.
Still packaged in the launch configuration, MUOS 5's two power-generating solar arrays are folded up and the umbrella reflectors stowed. The silver and black craft is 22 feet tall.
All branches of the U.S. military rely upon Navy satellites for Ultra High Frequency narrowband communications. UHF offers small, portable units that forces can carry into battle and the frequency enables communications in urban canyons and mountainous terrain, penetrating foliage and transmitting through bad weather.
The Navy built the $7.7 billion MUOS system — five satellites and four ground stations — to extend narrowband communications services for the military beyond 2025.
The first four MUOS satellites are in use today providing legacy communications services — MUOS 1 over the Pacific, MUOS 2 to the Americas, MUOS 3 above the Atlantic and MUOS 4 over the Indian Ocean. MUOS 5 was built to be the spare, yet launched so it could quickly replace one of its sister-satellites if called upon.
The last time a U.S. military communications satellite faced troubles during orbit raising was the first Advanced Extremely High Frequency spacecraft in 2010.
A manufacturing mishap, likely something left in the satellite that clogged a propellant line, prevented the main propulsion system from firing once the craft reached space, prompting ground controllers to devise emergency plans for rescuing the mission.
After 14 months and nearly 500 maneuvers using tiny electric thrusters on the satellite, the $1 billion AEHF 1 finally lifted itself to geosynchronous orbit without the use of its main engine. The spacecraft is in service today for ultra-secure communications between the president and military leaders.

ЦитироватьMike Gruss ‏@Gruss_SN  (https://twitter.com/Gruss_SN) 48m48 minutes ago (https://twitter.com/Gruss_SN/status/760525647856934912)

Navy: MUOS-5 "experienced a failure of the orbit raising propulsion system." DoD is considering alternate orbit adjustment options.

ЦитироватьNavy looks for Plan B to salvage its newest communications satellite             
 August 2, 2016 (http://spaceflightnow.com/2016/08/) Justin Ray (http://spaceflightnow.com/author/justin-sfn-ray/)
 (https://img.novosti-kosmonavtiki.ru/155089.jpg) (http://spaceflightnow.com/wp-content/uploads/2016/08/muos5rocketcam.jpg)A rocketcam view of MUOS No. 5 separating from the Centaur upper stage. Credit: ULA

CAPE CANAVERAL — The U.S. Navy has declared the primary orbit-raising system aboard its new MUOS No. 5 communications satellite failed, leaving controllers scrambling to design a rescue plan.
The final Mobile User Objective System satellite was launched into a geosynchronous transfer orbit on June 24 by a United Launch Alliance Atlas 5 rocket from Cape Canaveral.
The Lockheed Martin-built spacecraft was supposed to perform 7 burns of its main engine to raise and circularize the orbit to geosynchronous altitude 22,300 miles over the equator in view of Hawaii.
After completing an unspecified number of maneuvers, an "anomaly" struck June 29 that has rendered the main propulsion system failed.
"Evaluation of the fifth Mobile User Objective System (MUOS) satellite determined that the satellite experienced a failure of the orbit-raising propulsion system during a transfer maneuver on June 29," the Navy announced today.
"The transfer maneuver was designed to take the satellite from its initial elliptical launch orbit to its final circular geosynchronous orbit. This anomaly resulted in the transfer maneuver being halted."
The satellite was launched into a customized high-perigee geosynchronous transfer orbit as planned, stretching from 2,379 by 22,219 miles at an inclination of 19.1 degrees.
With some maneuvering already accomplished, MUOS 5 lifted its perigee to around 9,471 miles and reduced inclination to 9.8 degrees, hobbyist observers tracking the satellite reported in early July. They were the first to notice and publicly reveal that the craft has suddenly stopped maneuvering.
"The satellite remains in a stable intermediate orbit since experiencing the anomaly. The MUOS team is continuing to evaluate the situation, considering alternate orbit adjustment options, calculating mission impact and investigating all options before proceeding," the Navy statement said today.
But it appears the satellite has performed some orbit-raising in recent days, albeit tiny compared to large-scale maneuvers. The Navy has not confirmed any movements, but hobbyists keeping tabs on the stricken satellite have seen the tell-tale signs.
"When Scott Tilley observed MUOS 5 on July 21 near 11:00 UTC, it was still in the orbit in which it had been stranded by the propulsion system failure on June 29. When he next observed it, on July 30 at 10:00 UTC, it was nearly 17 minutes late relative the orbit it had been in on July 21. That is an indication that it made one or more maneuvers in the interim. The orbit change probably was not large. A precise determination is pending further observations," said Ted Molczan, a respected satellite observer.
The satellite is in a 16-hour orbit, more than 12,000 miles away from a usable orbital perch.
With the 100-pound-thrust main engine now out of commission, ground controllers will look to the satellite's small thrusters for saving the mission.
The craft is equipped with 18 monopropellant hydrazine thrusters designed for attitude control — a dozen 0.2-pound thrusters and six 5-pound thrusters.
The BT-4 main engine, made by IHI Aerospace of Tokyo, Japan, uses hydrazine fuel and nitrogen tetroxide. Aerojet Rocketdyne made the thrusters for MUOS.
The Navy has not identified the culprit for the propulsion system woes. No specific component has been implicated.
The situation is reminiscent of the Air Force's first Advanced Extremely High Frequency satellite that experienced a main propulsion system failure after launch due to a clogged fuel line. It was able to achieve geosynchronous orbit using its xenon-fed electric thrusters with no reduction to mission life.
But the MUOS satellites do not have a xenon propulsion system, only hydrazine.
MUOS No. 5 was supposed to arrive in its geosynchronous orbit on July 3 for the start of checkout in view of the Hawaii ground station before drifting to its operational location over the Indian Ocean. Original plans called for service activation by Christmas.
The last-of-its-kind satellite planned to fulfill a dual-role in space — immediately providing ultra-high frequency communications to U.S. military forces while also serving as an in-orbit spare for the Navy's new "rugged smartphone" system. The four earlier MUOS satellites are in use today providing UHF communications.

ЦитироватьApollo13 пишет:
Отказал апогейный двигатель?

ЦитироватьApollo13 пишет:
А есть у кого-то нынешняя орбита MUOS-5? На zarya.info все орбиты запусков 2016 года пропали  :(  

 http://www.zarya.info/Diaries/Launches/Launches.php?year=2016

После запуска было 35654х3903 км 18,97 градусов. Это 1407 м/с до ГСО.

ЦитироватьПрол пишет:

ЦитироватьApollo13 пишет:
А есть у кого-то нынешняя орбита MUOS-5? На zarya.info все орбиты запусков 2016 года пропали  :(  

 http://www.zarya.info/Diaries/Launches/Launches.php?year=2016

После запуска было 35654х3903 км 18,97 градусов. Это 1407 м/с до ГСО.

 http://www.n2yo.com/satellite/?s=41622

ЦитироватьSalo пишет:

ЦитироватьApollo13 пишет:
Отказал апогейный двигатель?

Да. А СПД и ионников нет. Остались только микродвигатели ориентации.

ЦитироватьОАЯ пишет:
Для тех кто... подскажите: Если он доберется до рабочей точки на орбите и пройдет испытательный период - сколько он сможет работать по времени из-за неисправности?
Если мало нет ли возможности его дозаправить/отремонтировать?

Цитировать'Neighborhood Watch' supports Navy operations
 By Jennifer Thibault, 50th Space Wing Public Affairs / Published August 17, 2016

SCHRIEVER AIR FORCE BASE, Colo. --
Air Force Space Command's "Neighborhood Watch" Satellites, the Geosynchronous Space Situational Awareness Program, recently responded to the Navy's request for help with a satellite of its own.
The Joint Functional Component Command for Space officially tasked the 1st Space Operations Squadron to support Navy's ongoing Mobile User Objective System-5 anomaly effort after the satellite failed to reach its target geosynchronous orbit on July 3.
Anomaly resolution in space is challenging for many reasons, one being it's difficult to see what's going on with the satellite.  Traditionally, engineers, analysts and operators comb through telemetry to come up with possible reasons for the anomaly, however in cases like this GSSAP is able to provide Electro Optical Space Situational Awareness on the status of space objects to include location, orbit and size of the space object.
GSSAP crews conduct Rendezvous and Proximity Operations to get the best possible vantage point for collecting SSA data when requested.  In this case, the mission was to help rescue MUOS-5. 
Once tasked, 1 SOPS mission planning cell began the deliberate, customized mission planning to determine how to execute the operation and maximize the probability for success.  The satellites' differing orbits and the various forces at play, including astrodynamics, reminded crewmembers that success was not inevitable.
Capt. Barbara Dyer, 1 SOPS mission commander, led the crew that accomplished the command and control operations to collect MUOS-5 imagery on her 10th shift.

Цитировать (https://img.novosti-kosmonavtiki.ru/67530.jpg) Spaceflight Now ‏@SpaceflightNow  (https://twitter.com/SpaceflightNow)  15 мин.15 минут назад (https://twitter.com/SpaceflightNow/status/794250528704307200)  
Navy announced its MUOS 5 satellite has reached usable orbit and deployed appendages, despite main engine failure
 (https://img.novosti-kosmonavtiki.ru/159095.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/29262.jpg) Jeff Foust ‏@jeff_foust  (https://twitter.com/jeff_foust)  30 мин.30 минут назад (https://twitter.com/jeff_foust/status/796086506574282752)
I'm sure this will break into the ongoing election news coverage on TV.
(https://img.novosti-kosmonavtiki.ru/159101.jpg)

ЦитироватьU.S. Navy's Fifth Lockheed Martin-Built MUOS Satellite Now Supporting Troops with Ultra High Frequency Communications

MUOS-5 Completes Global Military Cellular Network As Spare For Next-Generation Capabilities
             

(https://img.novosti-kosmonavtiki.ru/121560.jpg) (https://www.flickr.com/photos/lockheedmartin/25030183823/in/album-72157631807226456/)
Lockheed Martin MUOS-5 satellite

SUNNYVALE, Calif., April 24, 2017 /PRNewswire (http://www.prnewswire.com/)/ -- The fifth Lockheed Martin (NYSE-LMT)-built Mobile User Objective System (MUOS (http://www.lockheedmartin.com/muos)-5) satellite is now delivering secure, beyond-line-of-sight communications to troops with legacy Ultra High Frequency (UHF) radios.

Спойлер

The U.S. Navy, working with Army Forces Strategic Command, configured one of MUOS-5's two communications payloads – its legacy UHF payload – to provide additional support for the Navy's legacy UHF satellite communications mission. Today, narrowband UHF communications is used by every Combatant Command in aircraft, ships, submarines, ground vehicles, as well as by troops in the field and special operations.

Eventually, legacy narrowband UHF communications will transition to next generation Wideband Code Division Multiple Access (WCDMA) capabilities provided by MUOS. To facilitate that transition, MUOS was intentionally designed with two communications payloads.

"Each MUOS satellite can simultaneously support both new WCDMA waveform capabilities and legacy UHF satellite communications," explained Mark Woempner, director of Narrowband Communications Systems at Lockheed Martin. "With MUOS 1-4 already on orbit providing near global WCDMA coverage, MUOS-5 will actively support legacy UHF communications and serve as an on-orbit WCDMA spare."

MUOS-5 is the latest edition to a network of orbiting satellites and relay ground stations that is revolutionizing communications for mobile forces. Users with new MUOS terminals will be able to seamlessly connect beyond line-of-sight around the world and into the Global Information Grid, as well as into the Defense Switched Network. MUOS' capabilities (http://www.lockheedmartin.com/content/dam/lockheed/data/space/photo/MUOS/MUOS%20Infographic%28Final%29.pdf) include simultaneous, crystal-clear voice, video and mission data over a secure high-speed Internet Protocol-based system.

More than 55,000 currently fielded radio terminals can be upgraded to be MUOS-compatible, with many of them requiring just a software upgrade.

Once fully operational, MUOS will provide users with more than 10 times the communications capacity of the legacy system it will replace. The network provides near-global coverage, including communications into polar regions (http://www.lockheedmartin.com/us/news/press-releases/2014/january/131-ss-muos.html). MUOS also has demonstrated successful communication of Integrated Broadcast Service (IBS) messages to in-flight test aircraft.

"The industry team for MUOS is an incredible partnership. Next for MUOS, we are laser-focused on bringing the complete system to full operational capability for the Navy," said Woempner. "Early combatant commander testing began in July 2016, and we have already received valuable user feedback and are working to rapidly incorporate their needs into the system."

MUOS-5 begins this transition after successful completing post-launch, on-orbit testing on January 19. The satellite completed orbit raising (http://news.lockheedmartin.com/2016-11-04-MUOS-5-Secure-Communications-Satellite-Reaches-Orbit-Begins-Pre-Operational-Testing) and successfully deployed its solar arrays and antennas for mission operations on Oct. 30, 2016.

Originally launched on June 24 (http://news.lockheedmartin.com/2016-06-24-Under-Control-Lockheed-Martin-Built-MUOS-5-Secure-Communications-Satellite-Responding-To-Ground-Control-After-Launch), 2016, MUOS-5 experienced an anomaly with its orbit raising propulsion system on its way to geosynchronous orbit. The Navy and Lockheed Martin engineering teams were able to isolate the issue and deliver MUOS to operational orbit using alternative propulsion.

The Navy's Program Executive Office for Space Systems and its Communications Satellite Program Office responsible for the MUOS program are based in San Diego, California. Lockheed Martin assembled and tested all five now-on-orbit MUOS satellites at its Sunnyvale, California, facility.

For additional MUOS information, photos and video visit: www.lockheedmartin.com/muos (http://www.lockheedmartin.com/muos)

About Lockheed Martin
 Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company that employs approximately 97,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services.
 
SOURCE Lockheed Martin

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ЦитироватьMUOS-5 Now Supporting Troops with UHF Communications

April 28th, 2017 | by Paul Knightly

Спойлер

(https://img.novosti-kosmonavtiki.ru/234719.png) (https://img.novosti-kosmonavtiki.ru/234719.png)
An artist's rendering of a U.S. Navy Mobile User Objective System (MUOS) satellite in space. The MUOS-5 satellite is now providing secure UHF telecommunications to U.S. and allied mobile forces. Image Credit: Lockheed Martin

[свернуть]

The fifth Mobile User Objective System (http://www.lockheedmartin.com/us/products/mobile-user-objective-system--muos-.html) (MUOS-5) satellite is now delivering secure communications to troops using its Ultra High Frequency (UHF) telecommunications system. This comes as the U.S. Navy, partnered with the Army Forces Strategic Command, have worked to bring MUOS-5 into operation after it successfully completed on-orbit testing on January 19, 2017.

Спойлер

(https://img.novosti-kosmonavtiki.ru/234718.jpg) (http://www.spaceflightinsider.com/wp-content/uploads/2017/04/MUOS-5_20160125-02_1600x1280.jpg)
MUOS-5 at Lockheed Martin's Sunnyvale, California, satellite manufacturing facility prior to its rescheduled June 24, 2016, launch. (Click to enlarge) Photo Credit: Lockheed Martin
 
Narrowband UHF communications are utilized in a variety of military operations but will eventually transition to next generation Wideband Code Division Multiple Access (WCDMA) capabilities. To facilitate the transition to WCDMA, MUOS-5 was designed with two communications payloads to support both WCDMA and UHF.

"Each MUOS satellite can simultaneously support both new WCDMA waveform capabilities and legacy UHF satellite communications," explained Mark Woempner, director of Narrowband Communications Systems at Lockheed Martin. "With MUOS 1–4 already on orbit providing near global WCDMA coverage, MUOS-5 will actively support legacy UHF communications and serve as an on-orbit WCDMA spare."

In providing the next generation of communication capabilities to troops on the ground, MUOS-5 allows users to connect beyond line-of-sight around the world into the Global Information Grid and Defense Switched Network. They are also able to access crystal-clear voice, video, and data transmissions using a secure high-speed Internet connection.

As MUOS becomes fully operational, users will have access to more than 10 times the communications capacity of the legacy system it is replacing. In providing near-global coverage, including to polar regions, it has demonstrated the successful delivery of Integrated Broadcast Service (IBS) messages to in-flight aircraft.

"The industry team for MUOS is an incredible partnership. Next for MUOS, we are laser-focused on bringing the complete system to full operational capability for the Navy," said Woempner. "Early combatant commander testing began in July 2016, and we have already received valuable user feedback and are working to rapidly incorporate their needs into the system."

MUOS-5 has been transitioning to full operations after it successfully reached its intended orbit on October 30, 2016. This came after experiencing an anomaly with its orbit-raising propulsion system following its June 24, 2016, launch.

[свернуть]