Cygnus NG-13 (CRS-13) - Antares-230+ - MARS LP-0A - 09.02.2020, 22:39 UTC

[тавот]

sol написал:
бактерии кишечной палочки

Зачем везти то, что экипаж каждый день в санузле откладывает ?   

[tnt22]

02/14/2020 20:03 Stephen Clark

The propellant loading timeline sequencer has been initiated, beginning steps to ready the Antares rocket and ground systems for filling of the first stage with liquid propellants later in the countdown.


02/14/2020 20:04 Stephen Clark

These initial preparatory steps include chilldown conditioning of the launch pad's cryogenic propellant lines, purges and other activities. Propellant flows into the Antares rocket's first stage will begin around 90 minutes prior to liftoff.

[tnt22]

02/14/2020 20:09 Stephen Clark

The countdown is moving into testing of the Antares rocket's beacon and telemetry transmitters. This will be followed by checks of the vehicle's flight termination system.

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02/14/2020 20:23 Stephen Clark

The launch team is proceeding with testing of the Antares rocket's flight termination system, which would be used to destroy the vehicle if it flew off course after liftoff.

[tnt22]

02/14/2020 20:42 Stephen Clark

The Antares launch team in Virginia is monitoring upper level winds today ahead of launch at 3:43 p.m. EST (2043 GMT).

The latest weather balloon data showed winds aloft to be unacceptable for flight, but conditions are expected to improve this afternoon.

[Astro Cat]

Трансляция: https://www.rocketlaunch.live/launch/crs-2-ng-13

[tnt22]

02/14/2020 20:57 Stephen Clark

The launch team is now proceeding with activation of the first stage's hydraulic systems.

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02/14/2020 21:17 Stephen Clark

A series of slew, or steering checks, of the Antares rocket's propulsion system has been accomplished.

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 Flight Club‏ @flightclubio 1 ч. назад

To illustrate that T-0 is at the opening of the window and not at the optimal moment, notice in this clip that the #Cygnus plane is _ever so slightly_ misaligned with the ISS orbital plane. If #Antares launched a few minutes later, the planes would align perfectly https://twitter.com/ChrisG_NSF/status/1228362512695005190 ...

(0:11)

[tnt22]

02/14/2020 21:45 Stephen Clark

Launch conductor Adam Lewis says the Antares team is continuing to assess the impact of upper level winds on today's launch attempt. The team has multiple trajectory files that can be uploaded into the Antares guidance computer based on upper level winds measured by weather balloons during the countdown.

But weather balloon data so far today suggest winds aloft are out of limits for any of the available trajectory files. More balloon data will be coming in to the launch team before launch time.

[tnt22]

Уточнение

 Spaceflight Now‏ @SpaceflightNow 4 мин. назад

There are no technical issues in the Antares countdown in Virginia, but teams continue to assess upper level winds before proceeding with a launch opportunity today at 3:43:34pm EST (2043:34 GMT) on a resupply mission to the International Space Station.

[tnt22]

:!: 

Chris G - NSF‏ @ChrisG_NSF 4 мин. назад

And WOW.  We're about to find out just want #Antares can handle in terms of Upper Level Winds. (Yes, I know sheer is a component, but so is the actual wind speed.) ULWs increase as you go up, as seen below.
#Cygnus #NG13 @northropgrumman
https://twitter.com/ChrisG_NSF/status/1228390115468165120 ...

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 Chris G - NSF‏ @ChrisG_NSF 3 мин. назад

And #Antares is now it's planned built-in-hold ahead of fueling operations.  Standing by for weather update.
#Cygnus #NG13

[tnt22]

02/14/2020 21:53 Stephen Clark

The countdown has entered a pre-planned built-in hold. An upd ated status on the countdown from Northrop Grumman launch conductor Adam Lewis shows the Antares rocket, the Cygnus spacecraft and the Wallops range are all "green" at this time for liftoff at 3:43 p.m. EST (2043 GMT).

The Cygnus spacecraft se t for launch aboard the Antares rocket is named the S.S. Robert H. Lawrence in honor of Air Force Maj. Robert H. Lawrence, Jr. Lawrence was the first African American to be selected as an astronaut in the U.S. space program.

The S.S. Robert Lawrence is packed with 7,445 pounds (3,377 kilograms) of supplies and experiments heading to the International Space Station. Here's a breakdown of the cargo manifest provided by NASA:

NASA provided the following breakdown of the cargo manifest:

[/li]
• 3,501 pounds (1,588 kilograms) of vehicle hardware
  
• 2,129 pounds (966 kilograms) of scientific investigations
  
• 1,570 pounds (712 kilograms) of crew supplies
  
• 179 pounds (81 kilograms) of spacewalk equipment
  
• 66 pounds (30 kilograms) of computer resources
  

The Cygnus supply ship is expected to remain berthed at the International Space Station's Unity module until May 11, when it will be released by the station's robotic arm.

The automated cargo carrier, loaded with trash after its departure from the station, will perform an in-flight combustion experiment before re-entering the atmosphere and burning up over the South Pacific Ocean to end its mission.

[tnt22]

ТБМ!

Chris G - NSF‏ @ChrisG_NSF 2 мин. назад

Weather brief: No cumulus cloud rule violation expected. No precip to be concerned with. Upper Level Winds... 168 kts at 35,000 ft.  "Very slight decrease. Have hit max winds. But slow decrease.  T0, 155-160 kts max winds." 1/2


2 мин. назад

2/2 - "Couple extra balloons in the air now.  Trend looks favorable but closely compacted. No issues to be concerned with EXPECT Upper Level Winds."


1 мин. назад

3/2.  For tomorrow, "Upper Level Winds A LOT better tomorrow, around 100 kts."

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 Chris G - NSF‏ @ChrisG_NSF 3 мин. назад

Final Upper Level Wind v. trajectory status in ~20 minutes.

[tnt22]

02/14/2020 22:05 Stephen Clark

The launch weather officer at Wallops just briefed the Antares team on conditions for launch. Upper level winds remain the primary concern, with the latest weather ballon indicating maximum winds of around 168 knots between 30,000 and 35,000 feet.

The wind speeds aloft are decreasing slightly, with winds of around 155 to 160 knots expected at launch time this afternoon.

The launch team is evaluating whether the upper level wind conditions might improve enough to be safe for launch of the Antares rocket today.

Upper level winds are predicted to be much improved Saturday, with maximum winds less than 100 knots, according to the Wallops weather team.

Meanwhile, conditions at the surface remain favorable for liftoff today, with a 90 percent probability of acceptable weather. That figure does not account for upper level winds.

At launch time, forecasters expect partly to mostly cloudy skies and a temperature of 38 degrees Fahrenheit.

[tnt22]

ОТБОЙ!

02/14/2020 22:10 Stephen Clark

SCRUB. The Antares team has scrubbed today's launch attempt due to unfavorable upper level winds. Another launch attempt is planned Saturday at 3:21 p.m. EST (2021 GMT) to begin a space station resupply mission.

[tnt22]

 Chris G - NSF‏ @ChrisG_NSF 2 мин. назад

Tomorrow's launch attempt will come at 15:21 EST (20:21 UTC). #Antares #Cygnus #NG13.

Upper Level Winds expected to be much better and favorable tomorrow at ~100 kts.

[tnt22]

Официально

NASA Wallops‏ @NASA_Wallops 8 мин. назад

Rocket, check Chocolate, check Upper level winds? Unfortunately, check.

We are standing down from today's launch attempt of @NorthropGrumman's CRS-13 mission. Liftoff has been rescheduled for Saturday, Feb. 15 at 3:21 p.m. EST.