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

[tnt22]

03/18/2017 23:49

CBC liquid hydrogen loading is in "fast-fill" mode also. About 110,000 gallons of LH2 will fill the rocket's first stage.

03/18/2017 23:49  Upper stage LOX tanking

Chilldown of the upper stage liquid oxygen system is complete for loading the rocket's tank with 6,000 gallons of supercold LOX.

This is the last of the rocket's four cryogenic supplies to be filled in today's countdown to launch.

[tnt22]

Tory Bruno‏Подлинная учетная запись @torybruno 2 мин. назад
 
Looking good for tonight. #WGS9

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 59 сек. назад
 
LOX and LH2 now flowing into the Delta Cryogenic Second Stage, holding 27,220 Kilograms of prop at liftoff. #WGS9

[tnt22]

03/19/2017 00:06  CBC LH2 loaded

Fast-filling of the CBC liquid hydrogen tank has completed. After post-filling checks and valve tests, the tank will be placed in topping mode. The launch team will confirm the propellant is conditioned for flight.

[tnt22]

03/19/2017 00:11  CBC LOX loaded

The CBC liquid oxygen loading just finished. The tank has been loaded with its supercold oxidizer that is chilled to Minus-298 degrees F. Topping will be completed as the count rolls on.

[tnt22]

03/19/2017 00:14  Weather improved to 100% GO

The odds of GO weather for Delta 4 have increased to 100 percent. Forecasters are expecting fair skies, good visibility, acceptable winds and a temperature of 66 degrees F.

Spaceflight Now‏ @SpaceflightNow 55 сек. назад

Odds of GO weather for Delta 4 this evening at Cape Canaveral upped to 100% http://live.spaceflightnow.com/status.html  (@scriptunasphoto pic)
 

[tnt22]

Spaceflight101 LIVE‏ @S101_Live 3 мин. назад
 
The 1st stage has entered topping on both tanks. Fill&drain valve cycle tests are completed on each tank to ensure no valve is sticky. #WGS9

[tnt22]

Tory Bruno‏Подлинная учетная запись @torybruno 3 мин. назад
 
Tanking continues. Delta is carbo loading for her big run. #WGS9

[tnt22]

03/19/2017 00:43  L-2 hours and counting

Two hours and counting! Still targeting 7:44 p.m. EDT (2344 GMT) for launch tonight.
This is the 9th satellite for the Wideband Global SATCOM military communications network that began launching in 2007. WGS is the backbone of the Defense Department's information grid that spans the world.

WGS 9 is an internationally-funded satellite backed by Canada, Denmark, the Netherlands, Luxembourg and New Zealand to collaborate with the U.S. It joins WGS 6 that was built with money from Australia.

Spaceflight101 LIVE‏ @S101_Live 5 мин. назад
 
Now two hours to the opening of the 75-minute launch window at 23:44 UTC. Weather will not be an issue tonight http://bit.ly/2mGV3fA  #WGS9

[tnt22]

03/19/2017 00:47  Upper stage LOX loaded

Loading of the upper stage liquid oxygen tank has been accomplished.

[tnt22]

03/19/2017 00:58  Upper stage LH2 loaded

The vehicle is fully fueled! Loading of the upper stage liquid hydrogen tank has been accomplished as fueling wraps up this evening at Complex 37.

The 900,000-pound rocket stands fueled and ready for launch at 7:44 p.m. EDT (2344 GMT) from Cape Canaveral Air Force Station in Florida.

Spaceflight Now‏ @SpaceflightNow 4 мин. назад
 
Delta 4 now stands fully fueled for flight. Cryo tanks been filled to boost #WGS9 into space http://live.spaceflightnow.com/status.html  (@scriptunasphoto pic)
 

[tnt22]

03/19/2017 01:13  L-90 minutes and counting

Now entering into the final 90 minutes of the countdown to launch of Delta 377 and the ninth Wideband Global SATCOM military communications satellite for the U.S. Air Force.

All is quiet in the launch control room, activities are on schedule and the team is not reporting any technical concerns.

[tnt22]

Tory Bruno‏Подлинная учетная запись @torybruno 56 сек. назад

Cryo loading is complete. Board is green

[tnt22]

03/19/2017 01:24

Scans of the thermal insulation on the rocket following the completion of fueling have been performed with no concerns noted.

[tnt22]

Подтягиваются первые зрители к вечерней зорьке...

Chris G - NSF@CwG_NSF 2 мин. назад
 
80mins to go! #DeltaIV #WGS9
 

[tnt22]

03/19/2017 01:26

The flight slews and commanding tests for the vehicle steering systems are being performed. The Common Booster Core, the strap-on solid rocket motors and upper stage engine nozzle steering checks are being run through pre-launch test patterns.

[tnt22]

03/19/2017 01:32

Steering checks are complete.

[tnt22]

03/19/2017 01:43  L-60 minutes and counting
Now entering the final 60 minutes until the Delta 4 rocket launch from Cape Canaveral at 7:44 p.m. EDT (2344 GMT).

Спойлер

Here's a look at some stats about the mission. This will be:

[/li]
• The 377th Delta rocket launch since 1960
• The 35th Delta 4 rocket mission since 2002
• The 7th Medium+ (5,4) configuration to fly
• The 53rd main engine from RS-68 family used
• The 11th RS-68A main engine flown
• The 56th-57th-58th-59th GEM-60 solid rocket motors flown
• The 479th production RL10 engine to be launched
• The 38th RL10B-2 engine launched
• The 29th Delta 4 rocket launch from Cape Canaveral
• The 37th launch from Pad B at Complex 37
• The 20th use of Delta 4 by the Air Force
• The 105th Evolved Expendable Launch Vehicle flight
• The 118th United Launch Alliance mission since 2006
• The 85th ULA launch from Cape Canaveral
• The 47th ULA launch for the Air Force
• The 28th Delta 4 under the ULA banner
• The 3rd ULA launch this year
• The 1st launch of the Delta family in 2017
• The 9th Wideband Global SATCOM satellite
• The 3rd Block 2-Follow On WGS satellite
• The 7th WGS on Delta 4
  

[свернуть]

Spaceflight Now‏ @SpaceflightNow 3 мин. назад
 
L-60 minutes. This is 9th satellite for Wideband Global SATCOM military communications network that began in 2007 http://live.spaceflightnow.com/status.html
 

[tnt22]

SpaceFlight Insider‏ @SpaceflightIns 2 мин. назад
 
Less than 1 hour to the opening of the launch window for @ULAlaunch #DeltaIV #WGS9. Livestream begins in about 46 minutes.

[tnt22]

03/19/2017 01:52

RF link checks are complete and satisfactory.