WGS-9 – Delta IV-M+(5,4) – Канаверал SLC-37B – 19.03.2017 – 00:18 UTC

[Salo]

[Salo]

[tnt22]

Falcon 9 с EchoStar XXIII задержан минимум до 2017-03-16 01:35 am EDT, а отложенный запуск WGS-9 намечен на 2017-03-17 07:44 pm EDT -> между пусками примерно 41 час (менее 2-х суток). Службы космодрома перенастраиваются с пуска на пуск примерно двое суток. А не поедет ли опять вправо WGS-9?

[tnt22]

И если уедет WGS-9, как это отразится на Лебеде OA-7? Или запуск к МКС получит приоритет? Что-то концовка месяца всё уплотняется и уплотняется...

[tnt22]

Spaceflight Now‏ @SpaceflightNow 11 мин. назад
 
Favorable weather outlook for Friday's twilight Delta 4 rocket rocket launch of #WGS9 at 7:44pmEDT from Florida https://spaceflightnow.com/2017/03/14/favorable-weather-outlook-for-fridays-twilight-delta-4-launch-from-florida/ ...
 

https://spaceflightnow.com/2017/03/14/favorable-weather-outlook-for-fridays-twilight-delta-4-launch-from-florida/

Favorable weather outlook for Friday's twilight Delta 4 launch from Florida
 March 14, 2017     Justin Ray

Спойлер

The Delta 4 will launch from Complex 37. Credit: ULA

[свернуть]

CAPE CANAVERAL — Air Force meteorologists are expecting good weather to launch the Delta 4 rocket with a military communications satellite when the sun goes down Friday evening at Cape Canaveral.

Liftoff of the United Launch Alliance booster carrying the Wideband Global SATCOM 9 spacecraft for the U.S. Air Force is scheduled to occur at 7:44 p.m. EST (2344 GMT). The launch window will remain open for 74 minutes to 8:58 p.m. (0058 GMT).

The chances of allowable weather stand at 90 percent, with only a slight concern for liftoff winds during the launch opportunity.

"A high pressure area will gradually move into the Southeast U.S. Thursday and Friday, and as this occurs, the pressure gradient will slacken and winds will decrease," forecasters at the 45th Weather Squadron say.

"Weather is generally favorable for launch."

The launch time conditions are expected to include only scattered clouds, good visibility, ground winds from the east at 10 gusting to 15 knots, a relative humidity of 67 percent and a temperature of 63 degrees F.

An on-time liftoff at the opening of the window would occur 12 minutes after sunset but well within twilight conditions.

The closest free public viewing location is along Route 401 in Port Canaveral, some 8.6 miles from the launch pad, according to LaunchPhotography.com.

Спойлер

The WGS 9 spacecraft is an international contribution to the U.S. military's highest-capacity, worldwide communications satellite constellation. Canada, Denmark, the Netherlands, Luxembourg and New Zealand funded construction of this satellite in exchange to bandwidth from the entire global network.

The Boeing-built WGS network provides high-volume communications anytime, anywhere to soldiers, ships, aircraft and drones.

The final closeouts of vehicle compartments are underway ahead of the Launch Readiness Review on Tuesday and the countdown starting Wednesday morning.

Here's a look at some stats about the mission. This will be:

[/li]
• The 377th Delta rocket launch since 1960
• The 35th Delta 4 rocket mission since 2002
• The 7th Medium+ (5,4) configuration to fly
• The 53rd main engine from RS-68 family used
• The 11th RS-68A main engine flown
• The 56th-57th-58th-59th GEM-60 solid rocket motors flown
• The 479th production RL10 engine to be launched
• The 38th RL10B-2 engine launched
• The 29th Delta 4 rocket launch from Cape Canaveral
• The 37th launch from Pad B at Complex 37
• The 20th use of Delta 4 by the Air Force
• The 105th Evolved Expendable Launch Vehicle flight
• The 118th United Launch Alliance mission since 2006
• The 85th ULA launch from Cape Canaveral
• The 47th ULA launch for the Air Force
• The 28th Delta 4 under the ULA banner
• The 3rd ULA launch this year
• The 1st launch of the Delta family in 2017
• The 9th Wideband Global SATCOM satellite
• The 3rd Block 2-Follow On WGS satellite
• The 7th WGS on Delta 4
  

[свернуть]

[tnt22]

Прогноз погоды L-3
Delta IV WGS-09 L-3 Launch Forecast 17 March

/r/ULA‏ @_r_ULA 15 мин. назад
 
Weather forecast is 90% GO for the #WGS9 launch.
 

[tnt22]

Обновлённый прогноз погоды L-3 (выпуск 15 марта, действителен на пусковое окно 18 марта - Sic!)
Delta IV WGS-09 L-3 Launch Forecast 17 March

The primary concern for launch is Cumulus Clouds forming in advance of the front, however they should be of minimum vertical development and very isolated.

Launch day overall probability of violating weather constraints: 10%
Primary concern(s): Cumulus Clouds

24-hour delay overall probability of violating weather constraints 20%
Primary concern(s): Lift-Off Winds

Получается, опять сдвиг вправо на сутки?

[tnt22]

James Dean‏Подлинная учетная запись @flatoday_jdean 4 мин. назад
 
Current schedules, subject to change, have Delta IV/WGS-9 launching at 7:44pm March 18, Atlas V/OA-7 potentially moving to March 24.

[tnt22]

Spaceflight Now‏ @SpaceflightNow 6 мин. назад
 
Delta 4's military launch of #WGS9 bumped to Saturday by commercial SpaceX flight, but good weather expected https://spaceflightnow.com/2017/03/15/delta-4s-military-launch-bumped-by-commercial-spacex-flight-but-good-weather-expected/ ...
 

https://spaceflightnow.com/2017/03/15/delta-4s-military-launch-bumped-by-commercial-spacex-flight-but-good-weather-expected/

Delta 4's military launch bumped by commercial SpaceX flight, but good weather expected
 March 15, 2017     Justin Ray

Спойлер

The Delta 4 will launch from Complex 37. Credit: ULA

[свернуть]

CAPE CANAVERAL — With the SpaceX scrub earlier this week and the time needed to convert the Eastern Range over to the Delta 4, liftoff of that rocket carrying an internationally-purchased military communications satellite for the Air Force has been bumped to Saturday evening.

Liftoff of the United Launch Alliance Delta 4 carrying the Wideband Global SATCOM 9 spacecraft is scheduled to occur at 7:44 p.m. EDT (2344 GMT). The launch window will remain open for 75 minutes to 8:59 p.m. (0059 GMT).

After SpaceX scrubbed its launch early Tuesday, the company invoked its backup Range date of early Thursday.

Despite the 43-hour turnaround between SpaceX's next attempt and the Delta 4's scheduled launch, the Range ruled late Tuesday it could not support the military satellite flight on Friday evening. That automatically moved the Delta 4 to Saturday.

Спойлер

The Eastern Range provides the required safety and tracking services for all launches from the Space Coast.

The chances of allowable weather for the Delta 4 on Saturday stand at 90 percent, with only a slight concern for cumulus clouds during the launch opportunity.

"The next cold front will be dropping southward into northern Florida late on Saturday, but will remain relatively weak and not track through Central Florida until Sunday morning. Weather should be favorable for MST rollback during the day and for the evening launch," forecasters at the 45th Weather Squadron say.

"The primary concern for launch is cumulus clouds forming in advance of the front, however they should be of minimum vertical development and very isolated."

The launch time conditions are expected to include only a few low-level clouds and some scattered high clouds, good visibility, ground winds from the southwest at 10 gusting to 15 knots, a relative humidity of 64 percent and a temperature of 66 degrees F.

Sunday's backup launch window, if needed, should have 80 percent favorable weather.

"For Sunday, the relatively dry cold front tracks through Central Florida in the morning and drops into Southern Florida by afternoon. Skies will be fair, however winds will be 17 knots gusting to 25 knots throughout the day. During the morning, winds will be from the northwest then veering to north by evening. The primary concern for a 24-hour delay is lift-off winds, however the wind direction will be from a favorable (~010 degrees) azimuth during Sunday's launch window," forecasters say.

An on-time liftoff at the opening of the window would occur 12 minutes after sunset but well within twilight conditions.

The closest free public viewing location is along Route 401 in Port Canaveral, some 8.6 miles from the launch pad, according to LaunchPhotography.com.

The WGS 9 spacecraft is an international contribution to the U.S. military's highest-capacity, worldwide communications satellite constellation. Canada, Denmark, the Netherlands, Luxembourg and New Zealand funded construction of this satellite in exchange to bandwidth from the entire global network.

The Boeing-built WGS network provides high-volume communications anytime, anywhere to soldiers, ships, aircraft and drones.

Here's a look at some stats about the mission. This will be:

[/li]
• The 377th Delta rocket launch since 1960
• The 35th Delta 4 rocket mission since 2002
• The 7th Medium+ (5,4) configuration to fly
• The 53rd main engine from RS-68 family used
• The 11th RS-68A main engine flown
• The 56th-57th-58th-59th GEM-60 solid rocket motors flown
• The 479th production RL10 engine to be launched
• The 38th RL10B-2 engine launched
• The 29th Delta 4 rocket launch from Cape Canaveral
• The 37th launch from Pad B at Complex 37
• The 20th use of Delta 4 by the Air Force
• The 105th Evolved Expendable Launch Vehicle flight
• The 118th United Launch Alliance mission since 2006
• The 85th ULA launch from Cape Canaveral
• The 47th ULA launch for the Air Force
• The 28th Delta 4 under the ULA banner
• The 3rd ULA launch this year
• The 1st launch of the Delta family in 2017
• The 9th Wideband Global SATCOM satellite
• The 3rd Block 2-Follow On WGS satellite
• The 7th WGS on Delta 4
  

[свернуть]

[tnt22]

http://www.patrick.af.mil/News/Article-Display/Article/1120147/next-launch-delta-iv-wgs-09

Next Launch: Delta IV WGS-09
 / Published March 16, 2017

 
 1 of 1
 DOWNLOAD HI-RES  /   PHOTO DETAILS
U.S. Air Force graphic

CAPE CANAVERAL AIR FORCE STATION, Fla. --

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[tnt22]

Прогноз погоды L-2
Delta IV WGS-09 L-2 Launch Forecast 17 March

...
Weather should be favorable for MST rollback during the day and for the evening launch. As for space weather, there are no complex sunspot areas, and therefore, no concerns at present for solar activity. The primary concern for launch is Cumulus Clouds forming in advance of the front, however they should be of minimum vertical development and very isolated.
...

Launch day overall probability of violating weather constraints: 10%
Primary concern(s): Cumulus Clouds

24-hour delay overall probability of violating weather constraints 20%
Primary concern(s): Lift-Off Winds

Добавка

/r/ULA‏ @_r_ULA 6 ч назад
 
The weather forecast for Saturday's #WGS9 launch is still looking good! https://redd.it/5wzkp0
 

[tnt22]

Spaceflight Now‏ @SpaceflightNow 3 ч. назад

LEARN about the direction and events in Saturday evening's Delta 4 launch with #WGS9 https://spaceflightnow.com/2017/03/16/timeline-delta-4wgs-9-launch-events/ ...
 

https://spaceflightnow.com/2017/03/16/timeline-delta-4wgs-9-launch-events/

Timeline: Delta 4/WGS 9 launch events
 March 16, 2017     Justin Ray

 Follow the Delta 4 rocket's ascent into orbit fr om Cape Canaveral's Complex 37 launch pad to deploy the Wideband Global SATCOM 9 communications satellite. Liftoff is scheduled for Saturday at 7:44 p.m. EDT (2344 GMT).

Спойлер

T-00:05.0 Engine start

 
 
The RS-68A main engine begins to ignite as the liquid hydrogen fuel valve is opened, creating a large fireball at the base of the rocket. The engine powers up to full throttle for a computer-controlled checkout before liftoff.

T-00:00.0 Liftoff

 
 
The rocket's four strap-on solid rocket motors are lit, the four hold-down bolts are released and the Delta 4 lifts off from Cape Canaveral's pad 37B. The pad's three swing arms retract at T-0 seconds.

T+00:46.1 Max-Q

 
 
The vehicle experiences the region of maximum dynamic pressure. The solid motors and the RS-68A liquid hydrogen/liquid oxygen engine continue to fire as the vehicle heads downrange, arcing over the Atlantic along a 93.46-degree flight azimuth.

T+01:40.1 Jettison solid motors

 
 
Having used up all their solid-propellant and experienced burnout eight seconds ago, the two strap-on boosters with fixed nozzles are jettisoned from the Delta's first stage, followed two seconds later by the pair of boosters with steerable nozzles.

T+03:14.6 Jettison payload fairing

 
 
The five-meter diameter composite payload fairing that protected the WGS 9 cargo atop the Delta 4 during the atmospheric ascent is no longer needed, allowing it to be jettisoned in two halves.

T+03:56.5 Main engine cutoff

 
 
The hydrogen-fueled RS-68A rocket engine completes its burn and shuts down to complete the first stage of flight.

T+04:03.1 Stage separation

 
 
The Common Booster Core first stage and the attached interstage are separated in one piece from the Delta 4's upper stage. The upper stage engine's extendible nozzle drops into position as the first stage separates.

T+04:16.1 Second stage ignition

 
 
The upper stage begins its job to place the WGS 9 satellite into space with the first of two firings by the RL10B-2 liquid hydrogen/liquid oxygen engine.

T+19:53.6 Upper stage shutdown

 
 
The RL10 upper stage engine shuts down to complete its first firing of the launch. The rocket and attached satellite reach a parking orbit.

T+29:26.6 Restart upper stage

 
 
After a short coast period, the upper stage is reignited to raise the orbit to the planned altitude for deploying the payload.

T+32:35.3 Upper stage shutdown

 
 
The powered phase of the Delta 4's mission to loft WGS 8 concludes. The second burn will reach the planned super-synchronous orbit of 270 by 27,572 statute miles with an inclination of 27 degrees.

T+41:45.6 Separate spacecraft

 
 
The Wideband Global SATCOM 9 military communications satellite is released into space from the Delta 4 rocket. The Boeing-built satellite will use its onboard propulsion to reach geostationary orbit wh ere it will match Earth's rotation and appear fixed above the equator in the WGS constellation.

After performing its mission, the upper stage will perform a 10-second deorbit burn 30 minutes after spacecraft separation. Any debris surviving reentry will impact the Pacific about 12 hours after launch.

[свернуть]

[tnt22]

ULA‏Подлинная учетная запись @ulalaunch 3 ч. назад
 
Rocket fans! The ULA #DeltaIV #WGS9 mission for the @usairforce is scheduled for March 18. Launch window is 7:44-8:59 p.m. EDT.
 

[tnt22]

Spaceflight Now‏ @SpaceflightNow 1 ч. назад
 
PREVIEW: Military satellite #WGS9 jointly purchased by coalition forces to launch Saturday by Delta 4 fr om the Cape https://spaceflightnow.com/2017/03/16/u-s-military-satellite-jointly-purchased-by-coalition-forces-to-be-launched-saturday/ ...
 

https://spaceflightnow.com/2017/03/16/u-s-military-satellite-jointly-purchased-by-coalition-forces-to-be-launched-saturday/

U.S. military satellite jointly purchased by coalition forces to be launched Saturday
 March 16, 2017     Justin Ray 

Спойлер

WGS 9 will be launched by a Delta 4 Medium+ (5,4) rocket. Credit: United Launch Alliance

[свернуть]

CAPE CANAVERAL — Signaling strength in the international cooperation between the U.S. military and allied nations, a satellite funded by five countries will be launched by the Air Force on Saturday to codify a global communications deal.

A United Launch Alliance Delta 4 rocket will send the Wideband Global SATCOM communications spacecraft No. 9 into orbit from Cape Canaveral during an evening window of 7:44 to 8:59 p.m. EDT (2344-0059 GMT).

Weather forecasters project a 90 percent chance of favorable conditions for launch.

Спойлер

The Boeing Co. built the WGS 9 satellite with money from Canada, Denmark, the Netherlands, Luxembourg and New Zealand. The Air Force is launching the craft and will perform the command-and-control functions during its 14-year life expectancy.

Once the satellite was purchased in 2012, the U.S. military opened up access to its worldwide fleet of WGS spacecraft to provide bandwidth to the five allies that is commensurate with the amount of funding each country invested into WGS 9.

The arrangement gives the Pentagon's highest-capacity communications backbone a ninth satellite while supplying the partner nations with secure, anti-jam connectivity anywhere on Earth via any WGS spacecraft.

"WGS provides anytime, anywhere communications for Soldiers, Sailors, Airmen, Marines and international partners through broadcast, multicast and point-to-point connections," said Robert Tarleton, director of the Air Force's Military Satellite Communications Systems at the Space and Missile Systems Center.

"This very successful cooperative effort, along with the U.S. and Australia cooperative effort for WGS 6, enhances the foundation for long-term cooperation in military satellite communications and has been very effective in promoting increased interoperability among our strategic allies."

 
WGS 9 mission logo. Credit: Air Force

Valued at $424 million and weighing about 13,000 pounds at launch, WGS 9 was manufactured at Boeing 's factory in El Segundo, California. It is based on the Boeing 702HP satellite platform with both conventional and xenon-ion propulsion, deployable thermal radiators and power-generating solar arrays that stretch 135 feet tip-to-tip, a wingspan larger than a Boeing 737 but smaller than a Boeing 747.

The WGS satellites place shaped, steerable spotbeams of bandwidth wherever requested across their field-of-view for Ka- and X-band frequencies, plus the onboard capability to switch signals from one band to the other.

Each satellite has electrically-steerable, phased array antennas for X-band transmitting and receiving, mechanically-steered Ka-band antennas and a fixed full-Earth-coverage beam also in X-band.

The antennas provide 19 independent coverage areas — 10 Ka-band and 8 X-band spotbeams, plus the full-Earth footprint.

The WGS 8, 9 and 10 satellites feature upgraded Wideband Digital Channelizers at the heart of their communications packages that nearly doubles capacity compared to the previous sister-spacecraft in the series.

WGS 9 with its advanced channelizer will support over 11 gigabits per second of data processing, officials said.

WGS is the central element in the U.S. military's global communications infrastructure for troops on the ground, aircraft in the sky, ships at sea, the White House Communications Agency and the State Department, plus Australia that funded WGS 6 and the five allies that bought WGS 9.

The system transmits high-priority communications such as the exchange of war-fighting information between battlefield commanders on the ground and senior defense officials.

The satellites supply communications such as maps and data to soldiers in war zones, relay video from unmanned aerial reconnaissance drones, route voice calls and messaging, and even offer quality-of-life considerations like television broadcasts and email delivery to the troops.

 
An illustration of the WGS anti-jam capabilities. Credit: Boeing

Bringing in the international partners enables interoperability with coalition forces to communicate on the same system.

"As a global company, Boeing is happy to have been able to support the government in establishing the international business arrangement that enabled WGS 9 and appreciates the relationships we have built with our coalition partners over the years," said Rico Attanasio, director of Boeing's MILSATCOM programs.

"The capabilities of the WGS system are supporting our allies around the world with joint missions and helping our military be more effective."

Australia was the first country to join WGS, funding the construction of WGS 6 and its launch in August 2013.

Canada and the Netherlands also partner on the U.S. military's Advanced Extremely High Frequency satellite series that provides nuclear-survivable communications.

"We have ongoing, constant communications with international partners about joining in all of our communications whether it be wideband like WGS or protected like AEHF or EPS (Enhanced Polar System)," said Tarleton.

"It starts out as an expressed interest, certainly, with our allies we are looking to team as much as we can, then work forward through a Memorandum of Understanding and the funding and division of access to the constellation."

 
The WGS 9 spacecraft in the factory. Credit: Boeing

Getting WGS 9 into space begins with a ride atop the 900,000-pound, 217-foot-tall Delta rocket that will launch on 1.8 million pounds of thrust from its hydrogen-fueled Aerojet Rocketdyne RS-68A main engine and four side-mounted solid-fuel boosters from Orbital ATK.

"With four solids, if you are there in the local area it will be a pretty amazing experience with the sound and the vibrations and acoustics of the vehicle lifting off," said Laura Maginnis, United Launch Alliance's vice president for Government Satellite Launch

It will be the 7th flight for the Delta 4 Medium+ (5,4) variant, all for WGS, and the 35th launch overall for the rocket family.

Arcing to the east on a 93.46-degree flight azimuth, Delta 4 will experience maximum dynamic pressure, or Max Q, at 46 seconds, and the ground-lit boosters will burn out at 92 seconds and separate at 100 seconds.

Once out of the atmosphere and shortly before staging, the 47-foot-tall, 17-foot-diameter nose cone made of composites is jettisoned three minutes and 15 seconds into flight.

The first stage engine will propel the vehicle until T+plus 3 minutes and 57 seconds, followed by separation of the Common Booster Core seven seconds after cutoff.

The initial burn by the cryogenic upper stage gets underway at T+plus 4 minutes, 16 seconds, firing the high-energy Aerojet Rocketdyne RL10B-2 engine for nearly 16 minutes to accelerate to orbital velocity and then reach a preliminary parking orbit.

The vehicle performs a brief coast above equatorial Africa before restarting the RL10 engine at T+plus 29 minutes, 27 seconds, executing a three-minute burn to reach a highly elliptical super-synchronous transfer orbit.

Spacecraft deployment occurs over the Indian Ocean at T+plus 41 minutes, 46 seconds.

 
An artist's concept of WGS 9 being deployed by the Delta 4 upper stage. Credit: ULA
 
WGS 9 will be released into an orbit 270 by 27,572 statute miles with an inclination of 27 degrees. That orbit is lower than the 41,000-mile apogees achieved by previous WGS satellites, a change was made beginning with WGS 8 last December to enable a safe deorbiting of the depleted upper stage after releasing the satellite.

The new parameters meet the satellite's requirements and allow for the disposal of the rocket body in the fight against space debris and uncontrolled re-entries.

"For every mission, we look to see if we can be compliant to national space policy and we certainly want to be good stewarts of space. I'm not the expert on space junk or space debris, but every time we have the opportunity to not leave things in space that's what we want to try and do," said Col. Shane Clark, the Air Force's mission director for the WGS 9 launch and EELV Generation operations division chief at the Space and Missile Systems Center.

"Of course, we have to balance that across a variety of technical concerns with the satellite and the launch vehicle as we make those decisions. For WGS 8 and this mission (too), we all came together and found we could be compliant with space policy and be good stewarts of the environment up there and accomplish the objectives for the WGS program by putting the satellite wh ere it needs to be."

The RL10 engine will be re-ignited 30 minutes after spacecraft separation and perform just a 10-second deorbit burn. That'll cause the stage to re-enter over the Pacific at its first orbital perigee, 12 hours after launch.

It is a new policy for military launches to avoid leaving upper stages in orbit whenever possible. An extra strap-on solid rocket booster has been added to the Atlas 5 launching the SBIRS GEO Flight 4 missile-warning satellite later this year, for example, to give enough vehicle performance to complete the satellite deployment and then deorbit the upper stage.

"It's predominately a debris issue," Clark said.

The Air Force drafted specific language that now requires launch procurements to meet U.S. Government Orbital Debris Mitigation Standard Practices, or ODMSP, and to comply with the Space Safety and Mishap Prevention Program orbital debris requirements.

"ODMSP applies to all Evolved Expendable Launch Vehicle (EELV)/National Security Space launch missions, not just SBIRS GEO. In some cases, compliance may require increased launch vehicle performance when compared to non-compliant missions," according to Lt. Gen. Greaves, SMC commander and Air Force Program Executive Officer for Space.

The WGS 9 satellite is destined to operate at an undisclosed location in geostationary orbit 22,300 miles above the equator, matching Earth's rotation and remaining in lockstep over a specific spot of the globe.

The final WGS satellite — No. 10 — will be launched in late 2018.

[свернуть]

[tnt22]

Прогноз погоды L-1
Delta IV WGS-09 L-1 Launch Forecast 18 March

/r/ULA‏ @_r_ULA 3 ч назад
 
One day until @ulalaunch delivers #WGS9 to GTO for the @usairforce! Weather is still looking good. https://redd.it/5wzkp0
 

[tnt22]

NOTAM (с форума NSF)
https://forum.nasaspaceflight.com/index.php?topic=42009.msg1655398#msg1655398

WESTERN NORTH ATLANTIC.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
182344Z TO 190134Z MAR,
ALTERNATE 2344Z TO 0134Z COMMENCING DAILY
19 AND 20 MAR IN AREAS:
A. BOUND BY
28-35N 080-35W, 28-35N 080-00W,
28-34N 079-55W, 28-30N 079-52W,
28-27N 079-55W, 28-26N 079-58W,
28-29N 080-34W, 28-34N 080-35W.
B. BETWEEN
28-35N 28-10N AND 078-47W 078-07W.
C. BETWEEN
27-26N 27-01N AND 068-20W 067-20W.
D. BOUND BY
24-05N 052-14W, 23-15N 049-43W,
22-54N 049-54W, 23-40N 052-24W.
2. CANCEL NAVAREA IV 206/17, 211/17.
3. CANCEL THIS MSG 200234Z MAR 17.//

Authority: EASTERN RANGE 161326Z MAR 17.

Date: 161537Z MAR 17
Cancel: 20023400 Mar 17

и зона затопления верхней ст РН
https://forum.nasaspaceflight.com/index.php?topic=42009.msg1655401#msg1655401

WESTERN NORTH PACIFIC.
DNC 12.
1. HAZARDOUS OPERATIONS 191157Z TO 191312Z MAR,
ALTERNATE 1156Z TO 1312Z DAILY 20 AND 21 MAR
IN AREA BOUND BY
16-58N 153-50E, 13-38N 159-01E,
11-22N 158-00E, 14-40N 152-15E.
2. CANCEL HYDROPAC 906/17.
3. CANCEL THIS MSG 211412Z MAR 17.//

Authority: EASTERN RANGE 161715Z MAR 17.

Date: 161723Z MAR 17
Cancel: 21141200 Mar 17
 

[tnt22]

ULA‏Подлинная учетная запись @ulalaunch 5 мин. назад
 
ULA's Launch Readiness Review is complete. #DeltaIV #WGS9 is set to launch March 18. Window opens at 7:44pmEDT http://bit.ly/div_wgs9 
 

Собс-но, всё на рисунке слева

[tnt22]

Spaceflight Now‏ @SpaceflightNow 26 мин. назад
 
Review gives GO for Saturday's Delta 4 flight to deploy #WGS9. Launch dedicated to Air Force's 70th anniversary https://spaceflightnow.com/2017/03/17/d377_journal/ ...
 

03/17/2017 19:20  LRR: Final readiness review clears Delta 4 and WGS 9 for launch

A rocket launch celebrating the 70th anniversary of the U.S. Air Force while highlighting capabilities that the military service provides the country and allies has been cleared for liftoff at sunset Saturday.

The United Launch Alliance Delta 4 rocket is scheduled for departure at 7:44 p.m. EDT (2344 GMT) from Complex 37 at Cape Canaveral. The evening's launch window will remain open for 75 minutes.

Government and contractor managers convened the Launch Readiness Review today to assess preparations for the mission and granted approval to enter into the countdown on Saturday as planned.

Спойлер

The mobile service tower will be rolled back from the 217-foot-tall rocket shortly before noon EDT and fueling operations will underway by 3:30 p.m. EDT.

We will have complete live play-by-play coverage of the count and launch on this page, as well as a webcast of liftoff.

A reminder that if you will be away from your computer but would like to receive countdown updates, sign up for our Twitter feed to get text messages on your cellphone. U.S. readers can also sign up from their phone by texting "follow spaceflightnow" to 40404. (Standard text messaging charges apply.)

Weather forecasters give a 90 percent chance of acceptable launch conditions.

"A surface high pressure area is established over the southeastern states which will maintain a dry, stable air mass over Central Florida for the next 48 hours," the Air Force launch weather team reported this morning.

"Weather should be favorable for MST rollback during the day and for the evening launch. The next cold front will drop southward into northern Florida late on Saturday, but will remain relatively weak as it tracks through Central Florida early Sunday morning...The primary concern for launch is cumulus clouds forming in advance of the front, however they should be isolated and of minimal vertical extent."

Riding into space atop the rocket is the ninth Wideband Global SATCOM communications satellite, a craft funded by five partner nations in exchanged for global access to use any of the U.S. military's WGS spacecraft.

WGS 9 will join the growing constellation of WGS satellites in geosynchronous orbit 22,300 miles above the Earth that provide global communications coverage to the U.S. military and allies.

"Procurement of this satellite was made possible by a Memorandum of understanding with Canada, Denmark, Luxembourg, the Netherlands and New Zealand. These international partners received access to the global constellation proportional to their investment in WGS 9 since the agreement was signed in January 2012," said Robert Tarleton, director of the Air Force's Military Satellite Communications Systems at the Space and Missile Systems Center.

The 10-satellite WGS constellation began launching in 2007 and will see its final member deployed in 2018, blanketing the entire planet with communications coverage for all branches of the U.S. military, the White House and State Department, plus Australia and the five allies that bought WGS 9.

The satellites supply maps and data to soldiers on the battlefield, relay video from unmanned aerial reconnaissance drones, route voice calls and messaging, and even offer quality-of-life considerations like television broadcasts and email delivery to the troops.

Supporting both X- and Ka-band communications, WGS spacecraft are the Department of Defense's highest capacity communications satellites.

Boeing is the builder of the WGS fleet and ULA has launched all of the craft to date. The final craft in the series will be deployed by the end of 2018.

"The launch of WGS 9 coincides with the celebration of the U.S. Air Force's 70th anniversary. WGS is just one of many examples of advancements military technology and I can't think of mission to recognize the Air Force's 70th birthday," said Tarleton.

"WGS is a key element in helping the Air Force win in the air, space and cyberspace domains, and we are honored to be flying the 70th anniversary logo on the fairing of the Delta 4."

The rocket's nose cone has the WGS 9 mission emblem and the 70th anniversary insignia just below it.

"I began my career as an Air Force officer and I'm honored to play a role celebrating the Air Force's accomplishments while safely delivering incredibly important assets, like WGS 9, to orbit," said Laura Maginnis, United Launch Alliance's vice president for Government Satellite Launch.

"As the logo states, the Air Force has been breaking barriers since 1947, and space superiority is a critical part of those contributions. It is hard to imagine a world without the capabilities provided by DMSP, AEHF, SBIRS, GPS and WGS constellations that we have launched together."

This will be the 35th Delta 4 rocket launch since 2002 and the 29th Delta 4 to fly from Cape Canaveral.

The two-stage rocket was processed in the Horizontal Integration Facility, then rolled to the pad. It was hydraulically raised into the vertical position atop the launch table on Jan. 12 and the solid boosters were attached sequentially over the following few days.

A fueling exercise occurred on Feb. 17 and the payload, already encapsulated in the rocket's five-meter nose cone, was transported to the pad for mating with the rocket on Feb. 24.\

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[tnt22]

45th Space Wing‏ @45thSpaceWing 40 мин. назад
Happy #StPatricksDay Stay safe tonight team, we celebrate #afb70 tomorrow with an evening launch!!!
 

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