Intelsat 35e - Falcon 9 - Kennedy LC-39A - 05.07.2017 23:38 UTC

[Анатолий Ревзин]

Intelsat 35e, based on Boeing's 702MP Platform, weighs in at 6,761 Kilograms, making it the heaviest GTO payload ever launched by a #Falcon9

[tnt22]

07/03/2017 00:49
We're inside two hours until launch, and weather conditions are looking favorable for tonight's window. Here's a view from the Kennedy Space Center's press site around 3 miles from pad 39A.

[tnt22]

James Dean‏Подлинная учетная запись @flatoday_jdean 7 мин. назад

Launch weather outlook improving: forecast now 60% "go," up from 40%. #intelsat35e

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 1 мин. назад

Because the timeline of the last countdown hour is extremely busy, #Falcon9 completes all testing operations well in advance.

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 48 сек. назад

A final repetition of RF link checks and Flight Termination System testing should be underway now to clear the way for fueling.

[tnt22]

07/03/2017 01:04
The latest weather outlook has improved, with the Air Force forecast team now calling for a 60 percent chance up favorable conditions at liftoff time, up from a 40 percent chance in previous forecasts.

 
 

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 3 мин. назад

Passing T-90 minutes, final AFTS checks should be complete. Chilldown ops to get underway soon. #Falcon9

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 5 мин. назад

Liquid Oxygen ground systems enter chilldown ops prior to automated countdown to be ready to carry the supercold LOX to #Falcon9.

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 13 мин. назад

Liquid Oxygen ground systems enter chilldown ops prior to automated countdown to be ready to carry the supercold LOX to #Falcon9.

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 6 мин. назад

Today's #Falcon9 countdown uses a 60-minute auto sequence, comprising all fueling events and final vehicle preps inside T-7min.

[tnt22]

07/03/2017 01:29
The timeline for today's countdown calls for RP-1 kerosene, chilled to around 20 degrees Fahrenheit (minus 6 degrees Celsius), to begin flowing into the two-stage rocket at T-minus 70 minutes. Liquid oxygen loading will follow at T-minus 35 minutes.

A poll of the SpaceX launch team is expected at T-minus 73 minutes to give a "go" for fueling operations.

[tnt22]

Spaceflight Now‏ @SpaceflightNow 49 сек. назад

Poll of SpaceX's launch team gives "go" for fueling of the Falcon 9 rocket for 7:36pm EDT (2336 GMT) liftoff.

[tnt22]

07/03/2017 01:34  Go for fueling
The SpaceX launch conductor just gave the go to start propellant loading on-time after polling members of his launch team.

[tnt22]

07/03/2017 01:35
T-minus 60 minutes. The launch autosequence has started, kicking off the first steps to begin pumping propellants into the 229-foot-tall Falcon 9 at launch pad 39A.

RP-1 kerosene will be pumped into the two-stage Falcon 9 rocket first, followed by liquid oxygen chilled o near minus 340 degrees Fahrenheit (minus 206 degrees Celsius) at T-minus 35 minutes.

[tnt22]

Spaceflight Now‏ @SpaceflightNow 2 мин. назад

T-minus 60 minutes. Falcon 9 launch auto sequence has begun, kicking off steps to fuel rocket with kerosene & oxygen

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 2 мин. назад

Once automated count picks up, no hold will be called unless its by the Mission Director or Chief Engineer. #Falcon9

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 2 мин. назад

Any issues will be brought to the attention of the MD & CE who will make the call. Controllers can call a hold inside T-30sec. #Falcon9

[tnt22]

SpaceX‏Подлинная учетная запись @SpaceX 6 мин. назад

~60 minutes until Falcon 9 launch of @Intelsat 35e. Webcast will go live about 15 minutes before liftoff → http://spacex.com/webcast

[tnt22]

Stephen Clark‏ @StephenClark1 7 мин. назад

Weather conditions look ideal for a launch. Light winds, mostly clear skies, and a beaming evening sun raining down at the Cape.

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 3 мин. назад

Also inside T-60 minutes, #Falcon9 receives an updated flight profile, designed to reduce structural loads during atmospheric flight.