NROL-15 = Delta IV-H - 29.06.12 17:15 ЛМВ - Канаверал

[Старый]

Тов. Шариков обратил внимание, что сдвиг времени пуска намного необычен. вот я и предполагаю, что тут речь не о ГСО, а орбите немного выше её, что бы разница её периода с 24 часами была не 4, а 3 минуты.

Кажись при пусках на ГПО сдвиг времени обусловлен условиями солнечного освещения а не периодом обращения. Поэтому каждые сутки сдвигается на 1/365 суток.

[Sharicoff]

Кажись при пусках на ГПО сдвиг времени обусловлен условиями солнечного освещения а не периодом обращения. Поэтому каждые сутки сдвигается на 1/365 суток.

Что-то типа того, по крайней мере так всегда считалось.

[instml]

http://www.ulalaunch.com/site/PhotoGallery/Photo_gallery.shtml

     

[мастер_лукьянов]

При запуске в четверг, 28-го - время пуска 10:16 UTC
При запуске в пятницу, 29-го - 10:13 UTC

На три минуты раньше. Для стационаров вроде бы стандартный сдвиг на 4 минуты? Хоть и близко, но все-таки...

теоретически сдвиг должен быть 3 мин 56 сек. - разница между солнечными и звездными сутками - в этом случае в точке отделения спутник, сориентировавшись лишь по звездам, определит направление на Землю по "старым" данным без поправок.
з.ы. в данном случае если время пуска знать с секундами то может и не будет никакой особенности (например 10:13:02 и 10:16:58 )

[Salo]

Не забываем, что это NROL и секунды там могли просто округлить.

[мастер_лукьянов]

если предположить, что источник просто отбросил секунды от времени пуска, то в этот раз можно вычислить время пуска - в промежутке от 10:13:00 до 10:13:04.

[Space Alien]

T- 3 hours

[Space Alien]

http://www.spaceflightnow.com/delta/d360/status.html

0713 GMT (3:13 a.m. EDT)
Three hours and counting as the United Launch Alliance team works to get the Delta 4-Heavy rocket fully fueled with cryogenic propellants for today's launch. Liftoff remains scheduled for 6:13 a.m. EDT. Weather is fine and there are no issues being reported in the count.
0708 GMT (3:08 a.m. EDT)
The launch team is starting the chilldown thermal conditioning of the upper stage liquid oxygen system. This is the last tank left to fill today.
0704 GMT (3:04 a.m. EDT)
The loading of liquid oxygen into the Common Booster Cores has been completed. The launch team will be performing vent and relief checks following tanking and begin chilldown procedures for the upper stage liquid oxygen system.
0657 GMT (2:57 a.m. EDT)
No problems or issues are being worked in the countdown as activities proceed on pace for a liftoff at 6:13 a.m. EDT.
0654 GMT (2:54 a.m. EDT)
Fast-fill loading of the upper stage liquid hydrogen supply is starting. The tank will be loaded with 10,000 gallons of propellant for the RL10 engine.
0646 GMT (2:46 a.m. EDT)
Fast-fill loading of the liquid hydrogen tanks on the three Common Booster Cores has been completed. Some 110,000 gallons of LH2 are put into the rocket's tanks for flight. Vent and relief checks will be performed shortly.
0630 GMT (2:30 a.m. EDT)
The liquid oxygen loading is progressing as planned for the three Common Booster Cores. Each tank will be loaded with about 40,000 gallons of supercold LOX.
0618 GMT (2:18 a.m. EDT)
With the CBC liquid hydrogen tanking continuing, the launch team has been given approval to begin chilldown conditioning of the upper stage liquid hydrogen system. This is a precursor to fueling the upper stage.
0613 GMT (2:13 a.m. EDT)
Now four hours till launch. The Delta 4 rocket's three Common Booster Cores currently are being loaded with super-cold liquid oxygen and liquid hydrogen propellants.
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 three Common Booster Cores, 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 boosters 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.

0608 GMT (2:08 a.m. EDT)
With the Common Booster Cores' liquid oxygen systems properly conditioned for cryogenic temperatures, the loading of Minus-298 degree LOX into the Delta 4-Heavy rocket is beginning. The liquid oxygen tanks in all three Common Booster Cores will be filled over the next hour or so. The oxidizer will be consumed by the RS-68 main engines during launch.
0556 GMT (1:56 a.m. EDT)
The liquid hydrogen loading is switching to the "fast-fill" mode.
0552 GMT (1:52 a.m. EDT)
And now the liquid oxygen chilldown is starting in advance of feeding the cryogenic oxidizer into the Delta 4-Heavy rocket.
0545 GMT (1:45 a.m. EDT)
The cold gas chilldown for the hydrogen side has been completed and the launch team is beginning the initial loading of liquid hydrogen propellant into the three Common Booster Core stages. This "slow-fill" will be sped up to "fast-fill" after a small portion of each tank is loaded.
Chilled to Minus-423 degrees Fahrenheit, the liquid hydrogen will be consumed by the RS-68A main engines along with liquid oxygen during the early minutes of launch.

0523 GMT (1:23 a.m. EDT)
The cold gas chilldown conditioning of the Common Booster Cores for liquid hydrogen fueling has begun.
0512 GMT (1:12 a.m. EDT)
The "go" has been given for fueling operations. The launch team will start thermal conditioning steps to ready equipment for pumping the super-cold liquid oxygen and liquid hydrogen propellants into the Delta 4-Heavy rocket today.
0443 GMT (12:43 a.m. EDT)
T-minus 5 hours, 15 minutes and counting! The Terminal Countdown has commenced for today's launch of the Delta 4-Heavy rocket and a satellite payload for the U.S. National Reconnaissance Office. With one final hold planned at T-minus 4 minutes, liftoff is still targeted to occur at 6:13 a.m. EDT.
The multi-step process of loading all eight cryogenic propellant tanks in the rocket is scheduled to begin in the next half-hour and continue into the overnight.

0424 GMT (12:24 a.m. EDT)
The call to "man stations for cryogenic tanking" is sounding to the launch team.
0417 GMT (12:17 a.m. EDT)
Weather continues to look just fine for the Delta 4-Heavy rocket's launch today. The outlook is calling for a few scattered clouds, light winds and temperatures in the 70s F with a 90 percent chance of meeting the launch weather rules.
0343 GMT (11:43 p.m. EDT Thurs.)
T-minus 5 hours, 15 minutes and holding. Clocks have been paused for a planned one-hour hold, during which time the full launch team will be seated at their consoles, the launch pad is scheduled to be cleared of all workers and readiness polls will be conducted by mission management to ensure everyone is ready to proceed with the count.
The Terminal Countdown begins when the clocks resume ticking at 12:43 a.m. EDT, leading toward a liftoff of the Delta 4-Heavy rocket at 6:13 a.m. EDT from Cape Canaveral.

0125 GMT (9:25 p.m. EDT Thurs.)
The 330-foot tall mobile service tower has been retracted from the Delta 4-Heavy rocket at Cape Canaveral's pad 37B for Friday's sunrise launch that will place a clandestine payload into orbit for the agency that runs the nation's fleet of spy satellites.

The wheeled structure was 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 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 a little after 1 a.m.

Liftoff remains scheduled for 6:13 a.m. EDT.
THURSDAY, JUNE 28, 2012
2325 GMT (7:25 p.m. EDT)
Good evening from the Cape Canaveral Air Force Station where photographers are gathering right now to enter the launch pad and set up their sound-activated cameras to capture tomorrow's liftoff. We'll also grab some pre-launch shots while we're out there to post a little later tonight.
Out at Complex 37, ground technicians are making final preps to retract the dual-purpose assembly gantry and mobile shelter away from the United Launch Alliance-made rocket for the countdown to blastoff.

We'll be out of communication once we head into the complex. So we'll resume with updates and confirmation of tower rollback as soon as possible.

2215 GMT (6:15 p.m. EDT)
Ground crews are busy this evening getting launch pad 37B prepared for tomorrow's 6:13 a.m. EDT sendoff of the Delta 4-Heavy rocket carrying a critical spy satellite.
Retraction of the 330-foot tall mobile service tower from around the rocket is expected to begin around 8 p.m. EDT. The wheeled gantry structure moves along rail tracks to its launch position about the length of a football field from the rocket's mount.

The 9-million pound tower shields the Delta 4 from the weather, provides workers 360-degree access to the various areas on the vehicle and is needed to hoist the payload atop the upper stage during the launch campaign. The tower is 90 feet wide and 40 feet deep.

The Cape's Complex 37 is the same site used in the 1960s to fly unmanned Saturn 1 and 1B rockets that helped prepare for mankind's voyage to the moon. The site was rebuilt for the Delta 4 era, successfully supporting 15 liftoffs in the vehicle family so far.

1225 GMT (8:25 a.m. EDT)
Air Force meteorologists are predicting very nice conditions for a Friday liftoff of the Delta 4-Heavy rocket from Cape Canaveral. There's now a 90 percent chance of acceptable weather, with clouds posing only a slight concern.
"Rapid improvement to the local weather conditions to continue. Post-Tropical Depression Debby has moved well to the east of Florida and surface and upper level high pressure has begun to build into Florida. There are no concerns for a nominal (mobile service tower) roll on Thursday evening. There is only a very slight chance for an isolated cumulus cloud or thick cloud layer near the pad area during the launch window," the weather team says.

The forecast for Friday morning's launch window opening at 6:13 a.m. EDT includes a few clouds at 2,000 and 8,000 feet, a temperature in the 70s F and westerly winds at 5 peaking to 10 knots.

The odds of acceptable weather on Saturday and Sunday, if the launch should be delayed, are 80 percent favorable both mornings due to cumulus and thick cloud concerns.

WEDNESDAY, JUNE 27, 2012
1245 GMT (8:45 a.m. EDT)
With Debby, now a tropical depression, quickly scooting across Florida, meteorologists are becoming much more optimistic conditions will allow countdown operations to commence Thursday evening and the Delta 4-Heavy rocket to launch Friday morning at 6:13 a.m. EDT (1013 GMT).
"Tropical Depression Debby has begun a faster movement across Florida and will exit the east coast today. This faster movement away from Florida will significantly improve conditions for a Friday launch attempt. It is expected that winds will decrease enough to allow for a nominal (mobile service tower) roll on Thursday evening. Main concerns during the launch window will be for cumulus and thick layered clouds associated with any isolated showers that may be in the area. Winds are not expected to be a major concern during the window," the launch weather team reports.

The forecast for Friday has jumped to 70 percent favorable, and the backup opportunities on Saturday and Sunday mornings have a 70 percent of acceptable weather too.

Friday's launch window forecast is calling for some scattered low- and mid-level clouds, isolated showers in the area, winds from the northwest shifting around to the north-northeast at 10 peaking to 15 knots and a temperature in the low 80s.

TUESDAY, JUNE 26, 2012
1750 GMT (1:50 p.m. EDT)
DELAY. With a weather forecast showing a Thursday launch attempt would be futile, mission managers this afternoon decided to wait until at least Friday to try flying the mammoth Delta 4-Heavy rocket from Cape Canaveral.
The Sunshine State is anything but sunny this week due to Tropical Storm Debby dithering in the northeastern Gulf of Mexico, which has been pumping a constant stream of clouds, rain and thunderstorms over the peninsula.

Air Force meteorologists predict slightly better conditions on Friday morning for a 6:13 a.m. EDT liftoff.

Here is the ULA statement on the delay:

"Due to the forecast for Tropical Storm Debby, the launch of a Delta 4 carrying a national security payload for the National Reconnaissance Office is delayed 24 hours. The launch is now planned for Friday, June 29 at 6:13 a.m. from Space Launch Complex-37 at Cape Canaveral Air Force Station in Florida. The protective Mobile Service Tower will remain around the launch vehicle and is scheduled to be moved for launch Thursday evening."

[Space Alien]

T- 2 hours

0813 GMT (4:13 a.m. EDT)
Now moving into the final two hours of the countdown.
Today's mission will add a critical new spacecraft to the nation's spy satellite fleet operated by the National Reconnaissance Office.

"They are silent sentinels. They look and listen from the cold reaches of space. They capture signals and images critical to America's intelligence community, warfighters and policymakers. They reveal threats to the homeland, provide battlefield situational awareness, support counter-narcotics, survey the damage from natural disasters and much more. They are the satellites of the National Reconnaissance Office: America's eyes and ears in space," the agency says.

"Today, the U.S. government openly acknowledges the NRO and a variety of users depend on the enormous amount of data NRO satellites collect. Quickly and reliably delivering the information to all 16 intelligence community agencies, the 5 military branches and various civil users and U.S. allies is a critical NRO mission. To do this NRO, from its headquarters in Chantilly, Virginia, builds, operates and maintains a high-speed global information system of satellites and ground-based communications."

0754 GMT (3:54 a.m. EDT)
Post-loading checks of the Common Booster Core liquid oxygen systems have been accomplished and the tanks are going into topping mode.
0743 GMT (3:43 a.m. EDT)
Fast-fill loading of the upper stage liquid hydrogen tank just wrapped up.
0718 GMT (3:18 a.m. EDT)
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 eight cryogenic supplies to be filled in today's countdown to launch.

[Space Alien]

T- 60 min

0913 GMT (5:13 a.m. EDT)
The countdown is entering the final 60 minutes until the Delta 4-Heavy rocket launch from Cape Canaveral at 6:13 a.m. EDT. Here's a look at some stats about today's mission. This will be:
The 360th Delta rocket launch since 1960
The 20th Delta 4 rocket mission since 2002
The 16th Delta 4 rocket launch from Cape Canaveral
The 16th use of Delta 4 by the Air Force
The sixth Heavy configuration to fly
The 7th classified Delta 4 for the NRO
The third of four NRO launches planned in 2012
The 51st Evolved Expendable Launch Vehicle flight
The 62nd United Launch Alliance mission since 2006
The 13th Delta 4 under the ULA banner
The third launch of the Delta family in 2012

0908 GMT (5:08 a.m. EDT)
The team is now preparing to conduct steering checks of the Delta 4 rocket's engines.
0900 GMT (5:00 a.m. EDT)
Checks of the rocket safety system have been completed.
0843 GMT (4:43 a.m. EDT)
Now 90 minutes away from the NROL-15 launch for the National Reconnaissance Office.
"Today, the United States is preeminent in satellite reconnaissance. The NRO enlists the expertise of highly skilled engineers from across government and industry to maintain this edge in edge in space - the ultimate high ground from which to watch, listen and learn," the NRO says.

"Always vigilant, NRO's eyes and ears give America's policy markers, intelligence analysts, warfighters and homeland security specialists the critical information they need to keep America safe, secure and free."

0833 GMT (4:33 a.m. EDT)
The latest update from the launch weather team still puts odds at 90 percent chance of acceptable conditions for liftoff today.
The official launch forecast calls for a few scattered clouds at 2,000 feet, 7 miles of visibility, a temperature in the 70 degrees F and westerly winds from 270 degrees at 5 peaking to 10 knots.

0828 GMT (4:28 a.m. EDT)
Launch time continues aim for 6:13 a.m. EDT, about 15 minutes before local sunrise. The rocket has been filled up with fuel for the mission. But as the countdown continues, all eight propellant tanks will be replenished to replace the cryogenics that naturally boil away.
0821 GMT (4:21 a.m. EDT)
Loading of the upper stage liquid oxygen tank is complete and the Delta 4-Heavy rocket now stands fully fueled for launch.

[Salo]

Трансляции:
http://www.ulalaunch.com/site/pages/Webcast.shtml
http://www.spaceflightnow.com/delta/d360/status.html

[Space Alien]

Похоже задержка  :? ...

[instml]

Ожидание (3:42).

[instml]

Рассвет!

[instml]

Теперь около 14:45

[Space Alien]

Теперь около 14:45

Похоже на то ...

[Space Alien]

1018 GMT (6:18 a.m. EDT)

The launch director says it will take more than a half-hour to resolve this issue, which is the current window for the Range having cleared the restricted area. So safety officials have been asked to prepare for a later clear time.

[Space Alien]

Новое время - 10:50 GMT (14:50 мск) .

[Space Alien]

1044 GMT (6:44 a.m. EDT)

The government mission director has granted permission to launch at 6:50 a.m. EDT.

[Space Alien]

ОПЯТЬ?  :shock: