TDRS-M – Atlas V 401 – Канаверал SLC-41 – 18.08.2017 12:29 UTC

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08/18/2017 13:51
Centaur's liquid hydrogen tank is 20 percent full. The cryogenic propellant will be consumed with liquid oxygen by the stage's Aerojet Rocketdyne-made RL10 engine.

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NASA‏Подлинная учетная запись @NASA 3 мин. назад

Weather has improved to 90% 'GO' for the 8:03am ET launch of @NASA_TDRS communications satellite. Coverage at 7:30am http://www.nasa.gov/live 

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NASA_LSP‏Подлинная учетная запись @NASA_LSP 1 мин.1 минуту назад

The #AtlasV team has started Flight Control Final Preps. #TDRSM

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NASA_LSP‏Подлинная учетная запись @NASA_LSP 52 сек. назад

We are approaching T-0:50 & L-1:05 in #TDRSM #AtlasV count. Watch video for the difference between L-Time & T-Time

(0:38 )

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Tory Bruno‏Подлинная учетная запись @torybruno 4 мин. назад

Centaur LH2 at 50% #TDRSM

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Tory Bruno‏Подлинная учетная запись @torybruno 4 мин. назад

Atlas LO2 at 70%. All is green

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NASA_LSP‏Подлинная учетная запись @NASA_LSP 25 сек. назад

#AtlasV Booster LO2 tanking at 80% & Centaur LH2 tanking at 80%. #TDRSM

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08/18/2017 14:01
Centaur LH2 now at 90 percent.

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08/18/2017 14:01
The liquid hydrogen tank in the Centaur upper stage just reached the 96 percent level. Topping is beginning.

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08/18/2017 14:02  L-minus 60 minutes
Now 60 minutes from liftoff. Today marks the 72nd flight for Atlas 5, born of the Air Force's competition to develop next-generation Evolved Expendable Launch Vehicles. In its previous 71 missions since debuting in August 2002, the Atlas 5 has flown 26 flights dedicated to the Defense Department, 17 commercial missions, 14 for NASA and 14 for the National Reconnaissance Office.
"NASA has a terrific record flying on Atlas 5. We've successfully launched 14 missions on this magnificent rocket -- missions to Pluto, Jupiter, the Moon, the Sun, radiation belts, three spacecraft to Mars, Asteroid Bennu, as well as two previous TDRS spacecraft. TDRS-M will be the 15th NASA mission on Atlas 5 and the 72nd Atlas 5 overall," said NASA launch director Tim Dunn.

Spaceflight Now‏ @SpaceflightNow 1 мин. назад

L-60min for Atlas 5 #TDRSM. NASA launch director: "We've successfully launched 14 missions on this magnificent rocket" to planets, Sun, Moon

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Tory Bruno‏Подлинная учетная запись @torybruno 3 мин. назад

Centaur LO2 tanking complete. Starting RL10 chill down.

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08/18/2017 14:09
Fast-filling of the first stage liquid oxygen tank has been completed. Topping mode is now underway.

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NASA_LSP‏Подлинная учетная запись @NASA_LSP 1 мин. назад

L-Time=real time to launch; T-Time used for the sequence of events & can move around in real time through count. #TDRSM #ItIsRocketScience

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08/18/2017 14:09
The 745,000-pound Atlas 5 rocket now stands fueled for launch as the countdown continues on schedule for a liftoff at 8:03 a.m. EDT (1203 GMT).

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https://img.novosti-kosmonavtiki.ru/165970.jpg

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Chris B - NSF‏ @NASASpaceflight 2 мин. назад

No dual monitor webcasting today for the Atlas V. ULA webcast link appears to be the NASA TV broadcast: http://www.ulalaunch.com/nasa.asp

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08/18/2017 14:13
Atlas first stage LOX tank at 100 percent.

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ULA‏Подлинная учетная запись @ulalaunch 47 сек. назад

15 minutes! LIVE #AtlasV #TDRSM launch broadcast begins at 7:30amET http://bit.ly/av_tdrsm 

[Зловредный]

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