http://msdb.gsfc.nasa.gov/launches.php
Цитировать7/14/2011,0651-0710Z GPS 2F-5 Delta IV
http://space.skyrocket.de/doc_sdat/navstar-2f.htm
ЦитироватьNavstar-2F (GPS-2F)[/size]
(https://img.novosti-kosmonavtiki.ru/18369.jpg)
Navstar-2F [Boeing]
Navstar-2F (Navigation System using Timing And Ranging) or GPS-2F satellites are the fourth evolution stage of the second generation of the Navstar GPS satellites. Improvements included an extended design life of 12 years, faster processors with more memory, and a new civil signal on a third frequency. The first Block-IIF satellite is scheduled to launch in 2006
Boeing was contracted with options for up to 33 Block-IIF satellites in 1996, but in 2001 the contract was reduced 12 Block-IIF satellites. In July 2006, satellites 10, 11 and 12 were contracted.
The Navstar-2F satellites do not need to carry an apogee kick motor, in contrast to the earlier generations, as the launch vehicles provide direct insertion into the GPS orbit. Originally the Delta-4M version was to be used for the Delta launches, but a mass growth of the satellites required a switch to the more powerful Delta-4M+(4,2) version. For Atlas launches, the Atlas-5(401) version is used.
Nation: USA
Type / Application: Navigation
Operator: USAF
Contractors: Boeing
Equipment: ?
Configuration: 3-Axis stabilized, 2 solar arrays
Propulsion: ?
Lifetime: 15 years
Mass: 1630 kg
Orbit: 20200 km x 20200 km, 55.0°
http://www.spaceflightnow.com/tracking/index.html
ЦитироватьJuly 14 Delta 4 • GPS 2F-2
Launch window: 0649-0708 GMT (2:49-3:08 a.m. EDT)
Launch site: SLC-37B, Cape Canaveral Air Force Station, Florida
The United Launch Alliance Delta 4 rocket will deploy the Air Force's second Block 2F navigation satellite for the Global Positioning System. The rocket will fly in the Medium+ (4,2) configuration with two solid rocket boosters. Delayed from June 23. [June 26]
http://www.ulalaunch.com/site/pages/Launch.shtml#/19/
http://www.spaceflightnow.com/delta/d355/110627payload.html
ЦитироватьNext GPS satellite moves to Cape Canaveral launch pad[/size]
BY JUSTIN RAY
SPACEFLIGHT NOW
Posted: June 27, 2011
A Global Positioning System satellite has been loaded aboard its ride to space, arriving Monday at Cape Canaveral's Complex 37 for mounting atop the United Launch Alliance Delta 4 rocket.
(https://img.novosti-kosmonavtiki.ru/18856.jpg)
File image shows satellite payload pulling up to Delta's pad. Credit: NASA
Liftoff of the GPS 2F-2 spacecraft is scheduled for July 14 during a 19-minute window extending from 2:49 to 3:08 a.m. EDT (0649-0708 GMT).
The launch is timed to deliver the satellite into the GPS constellation to replace a 20-year craft that has long exceeded its expected lifespan.
GPS satellites fly about 11,000 miles above the planet and emit continuous navigation signals that allow users to find their precise position in latitude, longitude and altitude and determine time. Originally built for the U.S. military, the GPS service has spread across the world as an indispensable commercial utility.
The Air Force is in the midst of further upgrading the GPS network by deploying a new breed of satellite that features improved accuracy, enhanced internal atomic clocks, better anti-jam resistance, a civil signal for commercial aviation, a longer design life and reprogrammable onboard processors to evolve with future needs.
(https://img.novosti-kosmonavtiki.ru/18857.jpg)
The GPS 2F-2 satellite is pictured here at the El Segundo satellite integration and test complex earlier this year. Credit: The Boeing Company
A dozen of these new satellites in the Block 2F series are being built by The Boeing Company. The first was successfully launched from the Cape on May 27, 2010.
GPS 2F-2 was shipped April 19 from Boeing's manufacturing facility in El Segundo, Calif., to the Florida spaceport in a C-17 Globemaster III airlifter. After arriving at the Skid Strip, it was taken to Area 59 were GPS spacecraft undergo their pre-flight preps.
Launch base testing, the filling of maneuvering propellants and encapsulation within the two-piece rocket nose cone were among the activities accomplished at the satellite's cleanroom hangar.
A motorized trailer then carried the 3,400-pound satellite up the road to Complex 37 early Monday. It was positioned on the oceanside of the mobile service gantry and hoisted into the pad tower for bolting to the rocket's second stage.
(https://img.novosti-kosmonavtiki.ru/18858.jpg)
A file image shows satellite payload ready for lifting into the Delta 4 rocket's launch pad. Credit: NASA
Today's GPS constellation is comprised of 31 operational satellites, including 11 Block 2A's made by Boeing, 12 Block 2R's and seven 2R-Modernized spacecraft built by Lockheed Martin, and Boeing's first Block 2F.
Ground controllers expect to have the GPS 2F-2 satellite checked out and ready for use about 30 days after launch, the Air Force says.
The new spacecraft will occupy the Plane D, Slot 2A location of the navigation network, which is divided into six orbital groupings with multiple satellites flying in each.
The craft takes over the position held by the GPS 2A-11 satellite, which was launched by a Delta 2 rocket from Cape Canaveral on July 3, 1991.
Remarkably, that aging bird continues to function despite the loss of some redundant systems and far outlasting its design life. It will be relocated within the same orbital plane as a reinforcement while living out its remaining usefulness.
The Air Force recently completed an 18-month shuffling of six GPS satellites in the constellation to achieve "the most optimal geometry in its 42-year history," according to the service. The effort will boost signal reception to users in difficult terrains and the system's overall accuracy worldwide.[/size]
http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=space&id=news/asd/2011/07/07/07.xml&headline=Next%20GPS%20Satellite%20Poised%20For%20Launch
ЦитироватьNext GPS Satellite Poised For Launch[/size]
Jul 8, 2011
By Amy Butler
U.S. Air Force officials are preparing to launch the second Boeing GPS IIF satellite on July 14.
The launch window opens at 2:49 a.m. EDT at Cape Canaveral, says Col. Christopher Warack, space systems program manager at the Space and Missile Systems Center near Los Angeles.
The satellite, SVN-63, will be boosted by a Delta IV using two solid-rocket motor strap-on boosters as well as a 4-meter payload faring. The GPS IIF satellite, made by Boeing, will be lifted 11,000 mi. into a circular orbit after three upper-stage burns, says Jim Sponnick, vice president of mission operations at United Launch Alliance.
The first GPS IIF satellite was launched in May 2010 and is providing "excellent atomic clock performance," Warack says. It is one of 31 GPS satellites of various configurations transmitting precision timing and location signals to users today.
Though the first GPS IIF satellite is operational, its M-code (strong, military-specific), L2C and L5 signals are still being worked on and the M-code signal is now switched off, according to Warack. "There is no question whether the satellite will meet its requirements," Warack said during a teleconference with reporters July 5. The issue has been continuing to explore the amount of margin in the power level for the M-code signal, he says.
The receivers needed to use the new M-code have not yet been fielded, and the capability will not be added until elements of the new Raytheon-built GPS operational control segment are fielded in 2016.
Warack says the Air Force is experimenting with different power levels for the M-code signals to "make sure we are operating the satellites optimally."
The government notified users in April that the M-code would be switched off.
An industry official says Boeing has developed optimized transmitter settings to address the signal issue.
The second GPS IIF was built by Boeing at a loss owing to manufacturing problems. The Air Force is expected to buy a total of 12 satellites, and Boeing has established a pulse production line to more efficiently build the spacecraft.
Meanwhile, Lockheed Martin has completed its systems design review for the GPS IIIB program, the second increment of next-generation satellites in the constellation. Lockheed is developing the GPS III family, with the first IIIA slated for launch in 2014[/size].
Перенос на 15 июля.
http://www.spaceflightnow.com/delta/d355/status.html
ЦитироватьTUESDAY, JULY 12, 2011
The Delta 4 rocket launch carrying the next Global Positioning System satellite into orbit from Cape Canaveral has been delayed by 24 hours.
Originally planned for liftoff Thursday, the mission has been postponed to Friday morning at 2:45 a.m. EDT (0645 GMT). A reason for the rescheduling was not immediately announced.[/size]
July 16 Delta 4 GPS 2F-2
Launch window: 0641-0700 GMT (2:41-3:00 a.m. EDT)
Launch site: SLC-37B, Cape Canaveral Air Force Station, Florida
ЦитироватьThe United Launch Alliance Delta 4 rocket will deploy the Air Force's second Block 2F navigation satellite for the Global Positioning System. The rocket will fly in the Medium+ (4,2) configuration with two solid rocket boosters. Delayed from June 23 and July 14. Scrubbed from July 15 due to weather. See our Mission Status Center (http://www.spaceflightnow.com/delta/d355/status.html).
Трансляция:
http://www.ulalaunch.com/site/pages/ConferenceRoom_Webcast.shtml
http://www.spaceflightnow.com/delta/d355/payload/
(https://img.novosti-kosmonavtiki.ru/19067.jpg)
(https://img.novosti-kosmonavtiki.ru/19068.jpg)
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http://www.spaceflightnow.com/delta/d355/110714/
(https://img.novosti-kosmonavtiki.ru/19073.jpg)
(https://img.novosti-kosmonavtiki.ru/19074.jpg)
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(https://img.novosti-kosmonavtiki.ru/19076.jpg)
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http://www.spaceflightnow.com/delta/d355/mst/
(https://img.novosti-kosmonavtiki.ru/19078.jpg)
(https://img.novosti-kosmonavtiki.ru/19079.jpg)
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(https://img.novosti-kosmonavtiki.ru/19084.jpg)
(https://img.novosti-kosmonavtiki.ru/19085.jpg)
http://www.spaceflightnow.com/delta/d355/status.html
Цитировать0123 GMT (9:23 p.m. EDT Fri.)
The first stage liquid oxygen chilldown is complete. "Slow-fill" mode is beginning to load a small percentage of the tank. The process then speeds up to the "fast-fill" mode until the tank is nearly full.
0115 GMT (9:15 p.m. EDT Fri.)
First stage liquid hydrogen tanking operation is switching from "slow-fill" to "fast-fill" mode.
0100 GMT (9:00 p.m. EDT Fri.)
And now the chilldown of Delta's first stage liquid oxygen system is starting. This preps the tank and pumping to guard against shock when the supercold oxidizer begins flowing into the rocket a short time from now.
0059 GMT (8:59 p.m. EDT Fri.)
Liquid hydrogen flow to the first stage is confirmed. Some 110,000 gallons of LH2 will fill the rocket's tank.
0055 GMT (8:55 p.m. EDT Fri.)
The cold gas chilldown conditioning of the liquid hydrogen system has been accomplished. Liquid hydrogen propellant will begin to flow into the first stage in "slow-fill" mode. That is sped up to "fast-fill" after a small portion of the tank is loaded.
Chilled to Minus-423 degrees Fahrenheit, the liquid hydrogen will be consumed by the RS-68 main engine along with liquid oxygen during the first four minutes of the launch.
0029 GMT (8:29 p.m. EDT Fri.)
And fueling officially has begun. The hydrogen system's cold gas chilldown conditioning is underway.
0027 GMT (8:27 p.m. EDT Fri.)
A "go" has been given to start the cold gas chilldown conditioning of the first stage liquid hydrogen system. This is the precursor to actually filling the vehicle with propellant.
0011 GMT (8:11 p.m. EDT Fri.)
T-minus 6 hours, 15 minutes and counting! The Terminal Countdown begins now for tonight's flight of the United Launch Alliance Delta 4 rocket with the Global Positioning System 2F-2 satellite.
The count has a planned built-in hold at T-minus 5 minutes lasting some 15 minutes, leading to liftoff at 2:41 a.m. EDT (0641 GMT).
Technicians have finished all hands-on work at the launch pad and Complex 37 has been cleared of personnel in advance of fueling the rocket's two stages this evening. Pad systems and equipment stand ready for fueling activities, which should kick off shortly.
0005 GMT (8:05 p.m. EDT)
No technical issues are being worked in the countdown and the current weather conditions are acceptable for fueling to start on schedule around 8:30 p.m.
FRIDAY, JULY 15, 2011
2357 GMT (7:57 p.m. EDT)
The launch team has been polled to verify all consoles are manned and ready to begin the Terminal Countdown when this hold ends at 8:11 p.m. Officials are pressing onward with optimism the weather will improve over the next few hours.
2347 GMT (7:47 p.m. EDT)
Stormy weather is blanketing Central Florida tonight, bringing rain, thunder and lightning to the Space Coast. At the present time, a few of the launch commit criteria weather rules are "red" due to the cloud cover and electrical potential. But for the overnight launch time at 2:41 a.m. EDT, forecasters still predict a 60 percent chance of acceptable conditions then.
2311 GMT (7:11 p.m. EDT)
T-minus 6 hours, 15 minutes and holding. The countdown has entered a planned 60-minute built-in hold, a pre-planned pause designed to give the team time to catch up on any work that could be running behind schedule. Once the clocks resume ticking at 8:11 p.m. EDT, the Terminal Countdown phase of tonight's launch operation will begin.
2245 GMT (6:45 p.m. EDT)
Check out today's gantry rollback photo gallery taken by ULA's Pat Corkery.
1640 GMT (12:40 p.m. EDT)
The 330-foot tall mobile service tower has been retracted from the Delta 4 rocket at Cape Canaveral's pad 37B for tonight's launch that will place the GPS 2F-2 satellite into Earth orbit.
The wheeled structure just moved along rail tracks to its launch position about the length of a football field away from the rocket. The 9-million pound tower shielded the Delta from the elements during the its stay on the pad, provided workers 360-degree access to the various areas on the vehicle and was used to attach the strap-on solid motors and the payload during the launch campaign. The tower is 90-feet wide and 40-feet deep.
Crews will spend the next couple of hours securing the complex for launch before leaving the danger area around the pad. All workers must be clear of the area for the start of hazardous operations in the countdown, which include fueling the vehicle later tonight.
The Terminal Countdown will begin ticking at 8:11 p.m. EDT, leading to the multi-hour process of loading the Delta 4's Common Booster Core first stage and the second stage with supercold liquid oxygen and liquid hydrogen propellants.
Testing of communications links between the rocket and Air Force Eastern Range will occur after fueling is accomplished. Steering checks of the first stage RS-68 engine and second stage RL10 powerplant are on tap in the last hour of the count.
A 15-minute build-in hold is slated for T-minus 5 minutes, during which time teams will go through final polling to grant clearance to launch. The Delta 4 will transition to internal power as the count resumes, ordnance will be armed and the propellant tanks pressurized as clocks target the main engine ignition time at T-minus 5.5 seconds.
Liftoff remains scheduled for 2:41 a.m. EDT, the opening of a 19-minute window that extends to 3:00 a.m. EDT (0641-0700 GMT). [/size]
http://www.spaceflightnow.com/delta/d355/status.html
Цитировать0640 GMT (2:40 a.m. EDT)
T-minus 12 seconds. Ignitors are armed and the residual hydrogen burnoff sparklers have fired beneath the main engine.
0640 GMT (2:40 a.m. EDT)
T-minus 22 seconds. The steering system for the twin solid rocket motor nozzles has been activated.
0640 GMT (2:40 a.m. EDT)
T-minus 30 seconds. Green board. All systems remain "go" for launch.
0640 GMT (2:40 a.m. EDT)
T-minus 35 seconds. Upper stage liquid hydrogen tank is confirmed at flight level.
0640 GMT (2:40 a.m. EDT)
T-minus 1 minute and counting. The ignition conditions for the RS-68 main engine are "go." The terminal countdown sequencer will take control at T-minus 8.5 seconds. Ignition of the RS-68 powerplant will follow at T-minus 5.5 seconds. The engine powers up to the 102 percent level of thrust for a computer-controlled checkout before liftoff.
0639 GMT (2:39 a.m. EDT)
T-minus 70 seconds. The Air Force-controlled Eastern Range has given its "go" for launch.
0639 GMT (2:39 a.m. EDT)
T-minus 75 seconds. Upper stage liquid oxygen tank has been secured at flight level.
0639 GMT (2:39 a.m. EDT)
T-minus 80 seconds. The liquid hydrogen fuel tank on the upper stage is being secured for launch.
0639 GMT (2:39 a.m. EDT)
T-minus 1 minute, 40 seconds. The first stage liquid hydrogen tank has reached flight level and pressure.
0639 GMT (2:39 a.m. EDT)
T-minus 2 minutes. The rocket's upper stage liquid oxygen tank is being secured.
0638 GMT (2:38 a.m. EDT)
T-minus 2 minutes, 35 seconds. The liquid oxygen tank in the first stage is confirmed at the proper level and pressure for flight.
0637 GMT (2:37 a.m. EDT)
T-minus 3 minutes, 15 seconds. Replenishment of liquid hydrogen and liquid oxygen to the Common Booster Core first stage is being secured in preparation to pressurize the tanks for launch.
0637 GMT (2:37 a.m. EDT)
T-minus 4 minutes and counting. Ordnance devices aboard the vehicle are being armed.
0636 GMT (2:36 a.m. EDT)
T-minus 4 minutes, 10 seconds. The systems of the first and upper stages of the Delta 4 rocket have switched from ground-fed power to internal batteries for launch.
0636 GMT (2:36 a.m. EDT)
T-minus 5 minutes and counting! The final phase of today's countdown has commenced for launch of the Delta 4 rocket carrying the GPS 2F-2 navigation satellite. Liftoff is set to occur at 2:41 a.m. EDT from pad 37B at Cape Canaveral Air Force Station.
0635 GMT (2:35 a.m. EDT)
The launch director has given permission to resume the count for liftoff at 2:41 a.m. EDT.
0634 GMT (2:34 a.m. EDT)
The GPS 2F-2 spacecraft atop the Delta 4 has switched from ground-fed power to its internal batteries for launch.
0633 GMT (2:33 a.m. EDT)
The launch pad swing arm retraction system pins are being pulled. The three arms will be rotated away from the Delta 4 rocket at liftoff.
0631 GMT (2:31 a.m. EDT)
The final readiness polls of the launch team and mission managers have been completed. No technical problems are being worked and all rocket, spacecraft and ground systems appear are "go" for liftoff at 2:41 a.m. EDT.
0629 GMT (2:29 a.m. EDT)
Standing by for the launch team readiness check for continuing the countdown.
0623 GMT (2:23 a.m. EDT)
A load relief file based on the upper level winds is being transmitted to the Delta 4 rocket's flight computer. This program informs the rocket on the wind conditions it can expect to see during ascent.
0621 GMT (2:21 a.m. EDT)
T-minus 5 minutes and holding. The countdown has entered a planned 15-minute hold. This pause is designed to give the launch team the opportunity to catch up on any work running behind schedule and verify all is in readiness for the final moments of the count. A series of management polls will be conducted during the hold to give approval to proceed with the launch.
A reminder that if you will be away from your computer but would like to receive occasional countdown updates, sign up for our Twitter feed to get text message updates on your cellphone. U.S. readers can also sign up from their phone by texting "follow spaceflightnow" to 40404. (Standard text messaging charges apply.)
0611 GMT (2:11 a.m. EDT)
About three-and-a-half hours after launch, the Delta 4 rocket will deliver its satellite payload directly to the GPS constellation's altitude 11,000 nautical miles high. Ground controllers expect to have the new bird checked out and ready for use in about 30 days, the Air Force says. The new GPS 2F-2 spacecraft will take over the Plane D, Slot 2A location of the network, replacing a satellite that just celebrated its 20th birthday.
0603 GMT (2:03 a.m. EDT)
The Air Force launch weather officer has given his final planned briefing to mission managers in the countdown. The chance of isolated showers has been removed from the forecast and the odds of acceptable launch conditions have improved to 90 percent.
0556 GMT (1:56 a.m. EDT)
T-minus 30 minutes and counting. The countdown is headed to the T-minus 5 minute point where a 15-minute hold is planned. Liftoff is targeted for 2:41 a.m., which is the opening of today's 19-minute launch window to reach the desired location within the GPS constellation for replacing an aging satellite.
0545 GMT (1:45 a.m. EDT)
The latest tweaks to the launch weather forecast now calls for a few clouds at 2,500 feet, scattered at 15,000 feet and a broken deck at 22,000 feet, isolated showers in the vicinity, north-northwesterly winds of 5 to 10 knots and a temperature of 77 degrees F.
The odds of acceptable launch weather remain at 80 percent.
0541 GMT (1:41 a.m. EDT)
The ULA launch team and management are guiding the countdown from the Delta Operations Center, located about 9,200 feet from the pad. The engineers overseeing the rocket and ground systems are located on the third floor and the Mission Directors Center room is on the fourth floor. Both rooms have a view of pad 37B and the Delta 4 rocket out their windows. Other rooms are also set up for engineering support.
The DOC was formerly built to support the Titan-Centaur program but was refurbished to support Delta 4.
0536 GMT (1:36 a.m. EDT)
The RS-68 first stage main engine spin start pressurization operation is starting.
0530 GMT (1:30 a.m. EDT)
No issues are being worked in the countdown and the weather continues to look good for launch at 2:41 a.m.
0520 GMT (1:20 a.m. EDT)
The safety system checks are underway at this point in the countdown.
0511 GMT (1:11 a.m. EDT)
The countdown is entering the final 90 minutes until the Delta 4 rocket launch from Cape Canaveral at 2:41 a.m. EDT. Here's a look at some stats about today's mission. This will be:
The 355th Delta rocket launch since 1960
The 17th Delta 4 rocket mission since 2002
The 14th Delta 4 rocket launch from Cape Canaveral
The 8th Medium+ 4,2 configuration to fly
The 10th Delta 4 under the ULA banner
The 3rd Delta 4 launch this year
The 62nd GPS satellite to launch
The 51st GPS launch on a Delta rocket
The 2nd GPS Block 2F satellite
0509 GMT (1:09 a.m. EDT)
The RF checks are complete.
0503 GMT (1:03 a.m. EDT)
Radio frequency link checks between tracking facilities at the Cape and the launch vehicle are underway.
0500 GMT (1:00 a.m. EDT)
The flight slews and commanding tests for the vehicle steering systems are complete and satisfactory.
0457 GMT (12:57 a.m. EDT)
Now confirmation that propellant conditioning has been completed on the first stage as well. The Delta 4 rocket is fueled up and ready for today's launch.
0450 GMT (12:50 a.m. EDT)
Both cryo tanks on the upper stage have completed their pre-flight conditioning and remain in topping.
0445 GMT (12:45 a.m. EDT)
The launch team is kicking off the steering checks for the RS-68 main engine and RL10 upper stage engine, plus commanding tests with the solid rocket motors.
0440 GMT (12:40 a.m. EDT)
Check out this photo gallery showing the GPS 2F-2 satellite being encapsulated in the rocket's nose cone last month.
0436 GMT (12:36 a.m. EDT)
The thermal insulation inspections have been completed following fueling and there were no problems reported tonight.
0415 GMT (12:15 a.m. EDT)
The first stage liquid hydrogen tank has entered the topping phase after the post-fueling tests were accomplished. That puts all four cryogenic fuel tanks aboard the Delta 4 rocket in topping mode.
0412 GMT (12:12 a.m. EDT)
The newly revised weather forecast for the 2:41 a.m. EDT launch time now calls for a few low clouds, scattered mid-level clouds and a broken deck of high clouds, isolated showers in the vicinity, west-southwesterly winds of 5 to 10 knots and a temperature of 77 degrees F.
The odds of favorable weather have jumped to 80 percent.
0409 GMT (12:09 a.m. EDT)
Weather is "go" for launch! The evening storms have cleared away, current conditions are within limits for liftoff and the forecast is looking very positive now.
0408 GMT (12:08 a.m. EDT)
Engineers are conducting the standard evaluation of the Delta 4 rocket's thermal insulation following the loading of supercold propellants into the vehicle.
0403 GMT (12:03 a.m. EDT)
Upper stage liquid oxygen topping is beginning.
0401 GMT (12:01 a.m. EDT)
All is quiet at this point in the countdown with fueling operations nearly complete. The countdown remains on target for a liftoff at 2:41 a.m. EDT.
0344 GMT (11:44 p.m. EDT Fri.)
And the upper stage liquid oxygen filling has been completed, now heading into post-loading tests.
0343 GMT (11:43 p.m. EDT Fri.)
The first stage liquid oxygen system is conditioned for flight.
0341 GMT (11:41 p.m. EDT Fri.)
A reminder that if you will be away from your computer but would like to receive occasional countdown updates, sign up for our Twitter feed to get text message updates on your cellphone. U.S. readers can also sign up from their phone by texting "follow spaceflightnow" to 40404. (Standard text messaging charges apply.)
0325 GMT (11:25 p.m. EDT Fri.)
Weather forecasters believe the constraint for anvil clouds will be cleared perhaps in the next half-hour and that the conditions should be favorable for the remainder of the countdown to launch.
0304 GMT (11:04 p.m. EDT Fri.)
The topping mode is starting for the upper stage's liquid hydrogen tank.
0252 GMT (10:52 p.m. EDT Fri.)
The chilldown of the upper stage liquid oxygen system is reported complete, clearing the way for loading the rocket's tank with 4,500 gallons. This is the last of the rocket's four cryogenic supplies to be filled in today's countdown to launch.
0246 GMT (10:46 p.m. EDT Fri.)
Post-filling tests on the first stage liquid oxygen system are complete. The tank is now entering topping mode.
0242 GMT (10:42 p.m. EDT Fri.)
Fast-fill loading of the upper stage liquid hydrogen tank has been accomplished as fueling proceeds very smoothly this evening at Complex 37.
0238 GMT (10:38 p.m. EDT Fri.)
The "go" has been given for the upper stage liquid oxygen chilldown in advance of filling that tank.
0230 GMT (10:30 p.m. EDT Fri.)
Fast-filling of the first stage liquid hydrogen reservoir, the latest of the tanks to be loaded today, is wrapping up. After post-filling checks and valve tests, the tank will be placed in topping mode.
0222 GMT (10:22 p.m. EDT Fri.)
The first stage liquid oxygen loading just finished. The tank has been loaded with its supercold oxidizer that is chilled to Minus-298 degrees F. Topping will be completed as the count rolls on.
0220 GMT (10:20 p.m. EDT Fri.)
One of the two weather rules that had been "red" just went "green" as conditions get better. The field mills that measure the lightning potential were out of limits throughout the evening, but those readings are "go" for launch now.
0218 GMT (10:18 p.m. EDT Fri.)
The launch team is actively loading the upper stage's liquid hydrogen tank with 10,000 gallons of propellant for the RL10 engine.
0211 GMT (10:11 p.m. EDT Fri.)
Now four-and-a-half hours till launch. The Delta 4 rocket's Common Booster Core first stage and upper stage are being loaded with supercold liquid oxygen and liquid hydrogen.
Complex 37 has two giant sphere-shaped fuel tanks to store the cryogenic liquid oxygen and liquid hydrogen. The LOX tank holds 250,000 gallons and LH2 sphere about 850,000 gallons.
The cryogenics are fed from the storage tanks through pipelines to the pad. For the Common Booster Core, the propellants are routed up to the launch table upon which the rocket sits. Tail service masts, the large box-like structures at the base of the vehicle, feed the oxygen and hydrogen to the booster via separate umbilicals.
The upper stage receives its cryos from the middle swing arm that extends from the Fixed Umbilical Tower to the front-side of the rocket.
0203 GMT (10:03 p.m. EDT Fri.)
The chilldown of the upper stage liquid hydrogen system is reported complete, clearing the way for loading the rocket's tank.
0155 GMT (9:55 p.m. EDT Fri.)
A current check of the weather shows two rules -- anvil clouds and the electrical potential in the air -- remain "red" at this time. But the lightning advisory that's been in effect all evening will be allowed to expire at 10 p.m. as conditions gradually improve.
0140 GMT (9:40 p.m. EDT Fri.)
First stage liquid oxygen tanking operation is switching from "slow-fill" to "fast-fill" mode. The rocket will be loaded with 40,000 gallons of supercold LOX.
0133 GMT (9:33 p.m. EDT Fri.)
As tonight's countdown continuing to go very smoothly, the launch team is preparing to start fueling the Delta 4 rocket's upper stage. The "go" has been given to start the chilldown conditioning of the upper stage liquid hydrogen system. [/size]
Трансляция идёт:
http://www.ulalaunch.com/site/pages/ConferenceRoom_Webcast.shtml
http://www.spaceflightnow.com/delta/d355/status.html
Трёхминутная готовность.
Патч миссии:
(https://img.novosti-kosmonavtiki.ru/19086.jpg)
Улетела! :wink:
Есть отделение ТТУ.
Есть отделение первой ступени.
Есть сброс ГО и включение МД второй ступени.
Отключение МД второй ступени.
Цитировать0658 GMT (2:58 a.m. EDT)
T+plus 17 minutes, 20 seconds. The vehicle is now in a coast mode before the next firing of the upper stage engine. Ignition of the RL10 engine is now four minutes away.
0656 GMT (2:56 a.m. EDT)
T+plus 15 minutes. Delta has flown into a parking orbit with an apogee of 216 nautical miles, perigee of 100 nautical miles and inclination of 41.6 degrees.
0653 GMT (2:53 a.m. EDT)
T+plus 12 minutes, 45 seconds. Delta is 168 miles in altitude, 1,819 miles downrange from the launch pad, traveling at 25,294 feet per second.
0653 GMT (2:53 a.m. EDT)
T+plus 12 minutes, 17 seconds. SECO 1. The upper stage engine has shut down after the first of three planned firings to inject the GPS spacecraft into navigation network today.
0652 GMT (2:52 a.m. EDT)
T+plus 11 minutes, 40 seconds. Delta is 172.1 miles in altitude, 1,576 miles downrange from the launch pad, traveling at 24,400 feet per second.
0651 GMT (2:51 a.m. EDT)
T+plus 10 minutes, 50 seconds. The upper stage's the RL10 engine working well, still firing as planned to reach a low-altitude parking orbit.
0651 GMT (2:51 a.m. EDT)
T+plus 10 minutes, 30 seconds. The vehicle's steep climb has leveled off as it gains speed toward orbital velocity.
0651 GMT (2:51 a.m. EDT)
T+plus 10 minutes. Delta is 170 miles in altitude, 1,241 miles downrange from the launch pad, traveling at 22,581 feet per second.
0650 GMT (2:50 a.m. EDT)
T+plus 9 minutes, 20 seconds. About three minutes remain in this firing of the upper stage to place the vehicle into an initial parking orbit around Earth.
0650 GMT (2:50 a.m. EDT)
T+plus 9 minutes, 15 seconds. The RL10 engine is burning a mixture of liquid oxygen and liquid hydrogen cryogenic propellants. Chamber pressures still look good.
0649 GMT (2:49 a.m. EDT)
T+plus 8 minutes, 30 seconds. Delta is 160 miles in altitude, 951 miles downrange from the launch pad, traveling at 21,072 feet per second.
0648 GMT (2:48 a.m. EDT)
T+plus 7 minutes, 55 seconds. Good pitch and yaw controls on the upper stage engine.
0648 GMT (2:48 a.m. EDT)
T+plus 7 minutes, 25 seconds. Delta is 144.5 miles in altitude, 723 miles east of the launch pad, traveling at 19,937 feet per second.
0648 GMT (2:48 a.m. EDT)
T+plus 7 minutes. First stage flight events occurred very close to planned times.
0647 GMT (2:47 a.m. EDT)
T+plus 6 minutes, 40 seconds. Rock steady chamber pressure on the upper stage engine.
0647 GMT (2:47 a.m. EDT)
T+plus 6 minutes, 5 seconds. Delta is 122.8 miles in altitude, 522 miles east of the launch pad.
0646 GMT (2:46 a.m. EDT)
T+plus 5 minutes, 25 seconds. Good chamber pressure data being reported from the RL10 engine as it thrusts to reach orbit.
0646 GMT (2:46 a.m. EDT)
T+plus 5 minutes. Delta is 97.1 miles in altitude, 350 miles downrange from the launch pad.
0645 GMT (2:45 a.m. EDT)
T+plus 4 minutes, 42 seconds. The protective payload fairing enclosing the GPS satellite atop the rocket has separated.
0645 GMT (2:45 a.m. EDT)
T+plus 4 minutes, 30 seconds. The cryogenic RL10B-2 upper stage engine has ignited!
0645 GMT (2:45 a.m. EDT)
T+plus 4 minutes, 15 seconds. The Common Booster Core first stage and the attached interstage have been separated in one piece from the Delta 4's upper stage. The upper stage engine's extendible nozzle is dropping into position.
0645 GMT (2:45 a.m. EDT)
T+plus 4 minutes, 9 seconds. MECO! Main engine cutoff confirmed as the RS-68 powerplant shuts down.
0645 GMT (2:45 a.m. EDT)
T+plus 4 minutes. The main engine is throttling down to 57 percent thrust in preparation for shutdown.
0644 GMT (2:44 a.m. EDT)
T+plus 3 minutes, 35 seconds. Delta is 53.7 miles in altitude, 129 miles downrange from the launch pad.
0644 GMT (2:44 a.m. EDT)
T+plus 3 minutes, 25 seconds. Good pitch and yaw controls on the main engine.
0644 GMT (2:44 a.m. EDT)
T+plus 3 minutes, 15 seconds. The main engine continues to perform well, consuming its liquid hydrogen and liquid oxygen propellants.
0643 GMT (2:43 a.m. EDT)
T+plus 2 minutes, 45 seconds. Passing Mach 7.
0643 GMT (2:43 a.m. EDT)
T+plus 2 minutes, 30 seconds. The RS-68 is consuming nearly a ton of propellants per second as the powerplant pushes the Delta 4 rocket closer to the edge of space.
0643 GMT (2:43 a.m. EDT)
T+plus 2 minutes, 15 seconds. Delta is 26.5 miles in altitude, 31.9 miles downrange from the launch pad.
0642 GMT (2:42 a.m. EDT)
T+plus 1 minute, 42 seconds. Solid motor separation! The spent boosters have been shed from the first stage. Delta 4 continues powering its way toward space on the thrust generated by the RS-68 main engine.
0642 GMT (2:42 a.m. EDT)
T+plus 1 minute, 35 seconds. The twin solid rocket boosters have burned out of their propellant. Standing by for jettison.
0642 GMT (2:42 a.m. EDT)
T+plus 60 seconds. Now passing through the region of maximum aerodynamic pressure as the vehicle accelerates through the lower atmosphere.
0641 GMT (2:41 a.m. EDT)
T+plus 50 seconds. The launcher has broken through the sound barrier.
0641 GMT (2:41 a.m. EDT)
T+plus 30 seconds. The Delta 4 rocket is climbing away from Cape Canaveral with its main engine firing at full throttle and the two strap-on boosters giving a powerful extra kick.
0641 GMT (2:41 a.m. EDT)
T-minus 10, 9, 8, sequencer now controlling, T-minus 6, 5, main engine start, 3, 2, 1, SRB ignition and LIFTOFF! Liftoff of the Delta 4 rocket, building the future foundation of the Global Positioning System![/size]
Второе включения RL10.
Цитировать0705 GMT (3:05 a.m. EDT)
T+plus 24 minutes, 43 seconds. SECO 2. The second of three firings by the upper stage during tonight's launch has been completed.
0705 GMT (3:05 a.m. EDT)
T+plus 24 minutes. This burn injects the rocket into a highly elliptical orbit stretching out to the GPS constellation at its furthest point.
0704 GMT (3:04 a.m. EDT)
T+plus 23 minutes, 30 seconds. About one minute left in this burn by the Delta 4 rocket's upper stage.
0703 GMT (3:03 a.m. EDT)
T+plus 22 minutes, 45 seconds. Engine chamber pressure, pitch and yaw control, all looking good.
0703 GMT (3:03 a.m. EDT)
T+plus 22 minutes. This burn will last just over three minutes in duration.
0702 GMT (3:02 a.m. EDT)
T+plus 21 minutes, 45 seconds. Good chamber pressure reported as the engine gets up and running.
0702 GMT (3:02 a.m. EDT)
T+plus 21 minutes, 24 seconds. Ignition! The RL10B-2 engine, fed by liquid hydrogen liquid oxygen, has been reignited to propel GPS 2F-2 into an intermediate orbit. [/size]
Осталось дождаться третьего включения.
Вышли на орбиту с целевым апогеем (11000х130 морских миль). Следующее включение в апогее будет?
А як жеж:
Цитировать0711 GMT (3:11 a.m. EDT)
T+plus 30 minutes. The rocket has just entered a two-hour, 56-minute coast period before the final engine burn to deliver GPS 2F-2 into the desired circular orbit to join the navigation network.[/size]
http://rutube.ru/tracks/4634862.html
Цитировать0911 GMT (5:11 a.m. EDT)
T+plus 2 hours, 30 minutes. The rocket is soaring away from Earth in its current egg-shaped orbit. The upcoming engine firing at 6:01 a.m. EDT will occur as the rocket nears apogee. The burn lasts 99 seconds and puts the spacecraft into an 11,045 nautical mile circular orbit inclined 55 degrees to the equator.
Deployment of GPS 2F-2 from rocket to complete the launch is expected at 6:14 a.m. EDT.
0841 GMT (4:41 a.m. EDT)
T+plus 2 hour. The upper stage has completed one passive roll program and just started another. This one will continue until it's almost time for the next burn. The maneuvers ensure the thermal conditions are distributed across the vehicle.
0821 GMT (4:21 a.m. EDT)
T+plus 100 minutes. Unlike the previous generations that rode on smaller rocket Delta 2 rockets, the dozen next-generation GPS 2F craft will be delivered into orbit atop the Delta 4 and Atlas 5 fleets of boosters in the Air Force's Evolved Expendable Launch Vehicle program.
The Delta 2's, although highly reliable, weren't powerful enough to inject the GPS satellites directly into the orbiting constellation. The three-stage vehicles released the craft into a highly elliptical orbit stretching from 100 miles at its closest point with Earth to some 11,000 miles at its highest point, which is the altitude where the GPS network resides. The newly-launched satellites were themselves fitted with a solid-fuel kick motor that ignited a few days into flight and finished the job of propelling the craft into a circular orbit.
United Launch Alliance's powerful Delta 4 and Atlas 5 rockets will haul the GPS 2F satellites directly to their desired destinations, bypassing the circuitous route of the past. So instead of taking days to reach the GPS orbit, the new 2F-2 satellite will get there in three-and-a-half hours today.
0746 GMT (3:46 a.m. EDT)
T+plus 65 minutes. To recap, the Delta 4 rocket carrying the GPS 2F-2 navigation satellite launched from Cape Canaveral's Complex 37 at 2:41 a.m. EDT after a flawless countdown and some welcomed cooperation by the weather.
All appeared to go smoothly during the ascent and no problems were reported by the telemetry folks as the vehicle flew to its measured waypoints en route to orbit.
The rocket is now coasting toward a point about 11,000 nautical miles above the planet where the third and final burn is planned at T+plus 3 hours and 20 minutes.[/size]
Цитировать0941 GMT (5:41 a.m. EDT)
T+plus 3 hours. Now 20 minutes away from engine re-start on the upper stage. In preparation for that event, the rocket will complete the BBQ thermal roll and begin maneuvering itself into the proper orientation for ignition. Then, the stage will start a system chilldown with cryogenic fuel and use its tiny thrusters to settle the propellants in the tanks before firing the engine.
Ignition occurs at T+plus 3 hours, 20 minutes for a 99-second firing. Spacecraft separation happens at T+plus 3 hours, 33 minutes.[/size]
Цитировать1040 GMT (6:40 a.m. EDT)
"Congratulations to the entire team on the successful launch of the GPS 2F-2 satellite," said Jim Sponnick, United Launch Alliance's vice president of mission operations. "Today's one-at-a-time launch represents the 50th successful GPS launch on a Delta launch vehicle. We are proud to have served alongside the government and contractor teams over the last two decades in successfully launching GPS missions for the U.S. Air Force and providing important capabilities for our national defense and for millions of civilian and commercial users around the world."
1018 GMT (6:18 a.m. EDT)
"I am extremely proud of the tremendous efforts that hundreds of people on the launch team have expended for today's launch. I would like to thank United Launch Alliance, Boeing, my launch vehicle team from SMC's Launch and Range Systems Directorate and a host of others for their dedication to mission success," Col. Bob Hodgkiss, the GPS 2F-2 mission director, said in a post-launch press release.
1016 GMT (6:16 a.m. EDT)
"I'm extremely pleased with today's successful launch; the GPS system's overall navigational accuracy will improve as more GPS 2F space vehicles are put into service," Col. Bernie Gruber, director of SMC's Global Positioning Systems Directorate, said in a post-launch press release. "The improved accuracy, reliability and security of the GPS system ensure that the Air Force will continue to meet its navigation and timing commitments to GPS users around the world."
1014 GMT (6:14 a.m. EDT)
T+plus 3 hours, 33 minutes, 11 seconds. SPACECRAFT SEPARATION! The newest satellite for the Global Positioning System has been deployed into orbit from the United Launch Alliance Delta 4 rocket's upper stage, completing today's successful ascent.
The 3,400-pound spacecraft, built by The Boeing Company, is a next generation navigation satellite that will be bring new advancements to the orbiting constellation. It should be ready for use in a month.
1012 GMT (6:12 a.m. EDT)
T+plus 3 hours, 31 minutes. Just two minutes away from casting GPS 2F-2 free from its launcher.
1011 GMT (6:11 a.m. EDT)
T+plus 3 hours, 30 minutes. The rocket has achieved the correct roll rate as planned.
1010 GMT (6:10 a.m. EDT)
T+plus 3 hours, 29 minutes. Spin-up of the rocket stage has started in preparation for releasing GPS 2F-2 about four minutes from now.
1008 GMT (6:08 a.m. EDT)
T+plus 3 hours, 27 minutes. The upper stage is reorienting itself into the proper attitude for release of the satellite.
1003 GMT (6:03 a.m. EDT)
T+plus 3 hours, 22 minutes, 29 seconds. Final burn complete! The RL10B-2 motor fired back to life for the third of three burns to send the GPS 2F-2 spacecraft into the proper orbit for the navigation network.
1002 GMT (6:02 a.m. EDT)
T+plus 3 hours, 21 minutes, 40 seconds. Good burn in progress as the vehicle flies at 10,000 feet per second.
1002 GMT (6:02 a.m. EDT)
T+plus 3 hours, 21 minutes, 10 seconds. Engine chamber pressure is right on target.
1001 GMT (6:01 a.m. EDT)
T+plus 3 hours, 20 minutes, 53 seconds. Ignition! The upper stage if firing once again. This burn will last approximately 99 seconds in duration.
1000 GMT (6:00 a.m. EDT)
T+plus 3 hours, 19 minutes. The upper stage of the Delta 4 rocket is nearing the end of its long coast upward away from Earth. The motor is preparing to burn its engine one more time to propel GPS 2F-2 the rest of the way into orbit.
0958 GMT (5:58 a.m. EDT)
T+plus 3 hours, 17 minutes. The vehicle is 11,037 miles in altitude within view of the Guam and Diego Garcia tracking stations. [/size]
http://www.spaceflightnow.com/delta/d355/launch/
(https://img.novosti-kosmonavtiki.ru/19090.jpg)
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http://www.ulalaunch.com/site/PhotoGallery/Photo_gallery.shtml
(https://img.novosti-kosmonavtiki.ru/19097.jpg) (http://www.ulalaunch.com/site/PhotoGallery/galleryimages/images/DeltaIV/D4_GPSIIF2/div_gpsiif2_l1.jpg)
(http://s005.radikal.ru/i210/1107/6f/456b8887adff.jpg) (http://www.ulalaunch.com/site/PhotoGallery/galleryimages/images/DeltaIV/D4_GPSIIF2/div_gpsiif2_l2.jpg)
(http://s48.radikal.ru/i121/1107/87/1d762210e41d.jpg) (http://www.ulalaunch.com/site/PhotoGallery/galleryimages/images/DeltaIV/D4_GPSIIF2/div_gpsiif2_l3.jpg)
(http://i023.radikal.ru/1107/84/f1e7a89204c2.jpg) (http://www.ulalaunch.com/site/PhotoGallery/galleryimages/images/DeltaIV/D4_GPSIIF2/div_gpsiif2_l4.jpg)
(http://s58.radikal.ru/i161/1107/ba/b2707183023f.jpg) (http://www.ulalaunch.com/site/PhotoGallery/galleryimages/images/DeltaIV/D4_GPSIIF2/div_gpsiif2_l5.jpg)
(https://img.novosti-kosmonavtiki.ru/19098.jpg) (http://www.ulalaunch.com/site/PhotoGallery/galleryimages/images/DeltaIV/D4_GPSIIF2/div_gpsiif2_l6.jpg)
ЦитироватьFirst signals from GPS IIF-2[/size] (http://www.aviationweek.com/aw/blogs/space/index.jsp?plckController=Blog&plckBlogPage=BlogViewPost&newspaperUserId=04ce340e-4b63-4d23-9695-d49ab661f385&plckPostId=Blog%3a04ce340e-4b63-4d23-9695-d49ab661f385Post%3a43b1b369-d6cf-4cc4-816a-4d05a5efa3cc&plckScript=blogScript&plckElementId=blogDest)
Posted by Michael Mecham at 7/16/2011 9:09 AM CDT
Boeing received the first on-orbit signals at 6:14 a.m. EDT from the second of 12 Global Positioning System satellites it is building for the U.S. Air Force following a 2:41 a.m. launch from Cape Canaveral AFS, Fla.
The signals mean that GPS IIF-2 is functioning normally and is ready to begin on-orbit maneuvers and operational testing under the direction of the Air Force GAPS Directorate.
Boeing expects to officially turn over operation of the spacecraft, which has been renamed SVN-63, to the Air Force 50th Space Wing and the 2nd Space Operations Squadron this fall.
The spacecraft was lifted into orbit by a United Launch Alliance Delta IV Medium+ rocket flying for the eighth time in a 4-2 configuration. Its single Pratt & Whitney Rocketdyne RS-68 first stage engine was supplemented by two Alliant Techsystems strap-on solid rocket motors. The four-meter upper stage used a PWR RL10B-2 engine.
The first of the GPS IIF series was launched May 27, 2010. Each of the 12 are expected to have 12-year life spans.
The GPS IIF series continues the tradition of combined civil and military global positioning system satellite coverage but with greater navigational accuracy through improved atomic clock technology, a new civilian L-5 signal to aid commercial aviation and search and rescue operations, better resistance to jamming, and an on-orbit reprogrammable processor.[/size]
http://www.spaceflightnow.com/
ЦитироватьNewly launched GPS satellite goes into service[/size]
The nation's newest Global Positioning System satellite has completed its post-launch checkout and entered service in the orbiting constellation. [/size]
http://forum.nasaspaceflight.com/index.php?topic=25589.msg819185#msg819185
ЦитироватьGPS IIF-2 (SVN63) developed a problem with its cesium atomic frequency standard so the system operators activated an alternate rubidium standard. The satellite was finally set usable.
GPS Satellite Achieves 20 Years On-orbitЦитировать6/30/2011 - LOS ANGELES AIR FORCE BASE, Calif. -- GPS Block IIA-11 (SVN-24), built by Boeing (formerly Rockwell Corporation), was launched on July 4, 1991 and set healthy to navigation and timing users on Aug. 31, 1991. SVN-24 will reach 20 years on-orbit on July 4. SVN-24 was the second space vehicle in the series of the GPS IIA satellites to be launched with a design life of 7
На диаграмме показаны значения ошибки SIS (Signal In Space) для отдельных спутников созвездия GPS на 1 ноября 2011 года. Эта величина зависит от двух параметров - точности работы часов на борту спутника и от его способности поддерживать нужную орбиту.
Спутник GPS IIF-2 излучает сигнал PRN01. GPS IIF-1 - сигнал PRN25. Видно что первый спутник поколения IIF в несколько раз точнее второго. Интересно, что спутник GPS IIA-10 (сигнал PRN32), запущенный в ноябре 1990 года, работает лучше новейшего спутника. Возможно, настройка нового спутника все еще продолжается.
http://forum.nasaspaceflight.com/index.php?topic=25589.msg825746#msg825746
(http://i077.radikal.ru/1111/ce/cdc69d8705db.jpg)