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

Автор Salo, 11.01.2017 12:21:39

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tnt22

Цитировать03/19/2017 03:33
T+plus 16 minutes. Velocity 16,000 mph. About four minutes remain in this firing of the second stage. Good chamber pressure, stable body rates.

tnt22

Цитировать03/19/2017 03:34
T+plus 17 minutes. This burn will obtain orbital velocity and place the vehicle into an initial parking orbit around Earth. A second burn a short time from now boosts the payload into its transfer orbit.


tnt22

Цитировать03/19/2017 03:37  Main Engine Cut Off No. 1
T+plus 19 minutes, 46 seconds. MECO 1. Confirmation that the upper stage main engine has shut down after the first of two planned firings to inject the WGS 9 spacecraft into a super-synchronous transfer orbit.

03/19/2017 03:36
T+plus 19 minutes. The second stage engine continues to fire well with good chamber pressure. All is reported normal.

03/19/2017 03:35
T+plus 18 minutes. Speed now 18,000 mph. The upper stage's the RL10 engine working well, still firing as planned to reach the parking orbit this evening. Good trajectory reported as well.

tnt22


tnt22


tnt22

Цитировать Spaceflight101 LIVE‏ @S101_Live 54 сек. назад
 
Delta IV Parking Orbit looks good: 185 x 6,048 Kilometers, 27.6°. In-line with previous WGS missions. #WGS9

tnt22

Цитировать03/19/2017 03:42
T+plus 24 minutes, 30 seconds. Officials confirm that the Delta 4 rocket has successfully reached its targeted parking orbit.

03/19/2017 03:42
T+plus 23 minutes, 30 seconds. Vehicle systems remain in good shape for this brief coast period. The velocity is over 19,000 mph.

tnt22

Цитировать03/19/2017 03:44
T+plus 26 minutes, 30 seconds. The vehicle continues in the coast mode before the next firing of the upper stage engine. Re-ignition of the RL10 engine is three minutes away.

tnt22

Цитировать03/19/2017 03:44
T+plus 27 minutes. Things are still looking good, no reports of any issues tonight following an 8:18 p.m. EDT (0018 GMT) liftoff.

tnt22

Цитировать03/19/2017 03:47  Main Engine Start No. 2
T+plus 29 minutes, 27 seconds. Ignition! The RL10B-2 engine, fed by liquid hydrogen and liquid oxygen, has been started once again! This firing will propel WGS 9 to its desired launch orbit.

tnt22

Цитировать03/19/2017 03:47
T+plus 30 minutes. This burn will last just over three minutes in duration.


tnt22

Цитировать03/19/2017 03:48
T+plus 31 minutes, 15 seconds. Second burn continues to go smoothly with no issues reported.


tnt22

Цитировать Spaceflight101 LIVE‏ @S101_Live 12 сек. назад
 
SHUTDOWN. The RL-10B made a clean burn, Delta IV now in the planned injection orbit, setting up for spacecraft separation in 9 min. #WGS9

tnt22

Цитировать03/19/2017 03:50  Main Engine Cut Off No. 2
T+plus 32 minutes, 36 seconds. MECO 2. The second of two firings by the upper stage during today's launch has been completed, ending the powered phase of flight.

tnt22

Цитировать Spaceflight Now‏ @SpaceflightNow 1 мин. назад
 
SECO 2. #WGS9 lofted into a super-synchronous transfer orbit by second burn of Delta 4's upper stage. Sep in 9 mins http://live.spaceflightnow.com/status.html

tnt22

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tnt22

Цитировать03/19/2017 03:52
T+plus 34 minutes. Separation is coming up in a few minutes. Upper stage systems still look good.