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

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А это кто?

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NASA_LSP‏Подлинная учетная запись @NASA_LSP 10 мин. назад

I am thrilled to be the NASA launch director for #TDRSM #AtlasV launch tomorrow, Aug 18 - @TDunn86 #itisrocketscience

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Exophilia Rose‏ @Exophiliax 7 мин. назад

This place is gonna be busy in about 12 hours. @ulalaunch #AtlasV @NASASocial #NASASocial #tdrsm – Atlas Spaceflight Operations Center (ASOC)

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TDRS Continuing the Fleet

NASA Goddard

Опубликовано: 17 авг. 2017 г.

The Tracking and Data Relay Satellite, TDRS, project is building the follow-on and replacement spacecraft necessary to maintain and expand NASA's Space Network. The third satellite of the third generation, TDRS-M, is set to launch in August 2017. TDRS-M will launch from Cape Canaveral Air Force Station in Florida aboard an Atlas V rocket. This satellite will join a constellation of space-based communications satellites providing tracking, telemetry, command and high-bandwidth data return services.

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TDRS Network 360

NASA Goddard

Опубликовано: 17 авг. 2017 г.

Take a 360-degree look at the network of satellites that helps more than 40 NASA missions transmit their data to Earth. The Tracking and Data Relay Satellites (TDRS) form a constellation around Earth and work together with ground stations in White Sands, New Mexico, and Guam to communicate data.

The TDRS project is building the follow-on and replacement spacecraft necessary to maintain and expand NASA's Space Network. The third satellite of the third generation, TDRS-M, is set to launch in August 2017. TDRS-M will launch from Cape Canaveral Air Force Station in Florida aboard an Atlas V rocket. This satellite will join a constellation of space-based communications satellites providing tracking, telemetry, command and high-bandwidth data return services.

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NASA News Briefing Previews Launch of TDRS-M Communications Satellite

NASA

Опубликовано: 17 авг. 2017 г.

On Aug. 17, NASA held a news conference to preview the launch and mission of its next Tracking and Data Relay Satellite, TDRS-M. TDRS-M, which is targeted for launch atop a United Launch Alliance Atlas V rocket from Cape Canaveral Air Force Station in Florida, no earlier than Aug. 18, is the third in a series of three advanced TDRS satellites. The fleet of TDRS satellites provides the critical path for high data-rate communication to a host of spacecraft including the International Space Station and its resupply vehicles, the Hubble Space Telescope and many of NASA's Earth-observing fleet spacecraft.

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08/17/2017 17:38
This is a crew sync day for the Atlas 5 launch team, giving personnel time to rest before starting the countdown late tonight for tomorrow's early morning liftoff.

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Weather forecasters have improved the chances of acceptable liftoff conditions to 80 percent, with only a slight concern about cloud thickness.

"The spacecraft, Atlas 5 rocket and all Range equipment are ready, and the combined government and contractor launch team is prepared to launch TDRS-M -- a critical national space asset for space communications," NASA launch director Tim Dunn said at this morning's pre-launch news conference.

Clocks begin ticking at 1:13 a.m. EDT with power up of the Atlas and Centaur stages. Fueling the vehicle with cryogenic liquid oxygen and liquid hydrogen begins around 6 a.m.

"We rolled the vehicle out to the pad yesterday," said Scott Messer, ULA program manager for NASA missions. "So at the moment, the vehicle is just sitting over there waiting for us to get there this evening and begin the processing."

The historical odds of TDRS-M launching on the first try are 77 percent, based on the Atlas 5's previous countdowns over the past 15 years.

Of the 71 launches of Atlas 5 to date:

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• 38 have gone at opening of window on first attempt
• 17 went on first attempt but slipped later into the window
• 13 missions had scrubs (6-Technical, 4-Weather, 3-Range)
• 3 missions had more than one scrub
  

"It's a thrill for me personally to be here, just one day from the launch of this great TDRS satellite, which is a critical asset for the United States of America and all of space." Messer said.

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Прогноз погоды L-1

AV-074 TDRS-M L-1 Forecast
 
80 % GO

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NASA‏Подлинная учетная запись @NASA 9 мин. назад

Join us live from the launch pad at 6pm ET to see a @ULA rocket & our next communications satellite, @NASA_TDRS: https://www.facebook.com/NASA.TDRS