Author Topic: LIVE: Orbital's Antares/Cygnus ORB-1 (CRS-1) LAUNCH UPDATES - Jan 9, 2014  (Read 85476 times)

Offline Artyom.

Weather outlook has improved to 85% favorable at launch time.
Excellent! Thanks!

White-tailed deer graze near Antares rocket  :) .
« Last Edit: 01/09/2014 11:07 AM by Artyom. »
"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.

Offline Targeteer

  • Senior Member
  • *****
  • Posts: 3773
  • near hangar 18
  • Liked: 917
  • Likes Given: 454
Expanding on the 85% chance of good weather from Facebook

NASA's Wallops Flight Facility
Weather forecast for today's launch has improved. At launch time we are looking at partly cloudy to mostly sunny. Temperature 42 degrees. Probability of acceptable weather for launch is 85%.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline ppdebo

  • Member
  • Posts: 1
  • Malta - Central Mediterranean
  • Liked: 0
  • Likes Given: 0
Paul

Offline Zaran

  • Full Member
  • *
  • Posts: 104
  • England
  • Liked: 22
  • Likes Given: 61
All stations are go for pre-launch processing.

Offline Zaran

  • Full Member
  • *
  • Posts: 104
  • England
  • Liked: 22
  • Likes Given: 61
Just past T-5 hours to launch, good morning Antares!

Offline Artyom.

T-4 hours

Orbital Sciences ‏@OrbitalSciences
#Antares #Cygnus launch operations continue. Trajectory Assessment based on T-7.5 hour balloon data is green.
"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.

Offline Chris Bergin

Orbital (on twitter, minus the stupid hashtags):

Ventilation of core O2 tank is progress. Warm helium is being supplied to the vehicle.

Prelaunch processing on the vehicle loading systems are underway. The LOX subcooler is being loaded with LN2.

Offline Lee Jay

  • Elite Veteran
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6668
  • Liked: 971
  • Likes Given: 139
The LOX subcooler is being loaded with LN2.

LOX boils at around 90K while LN2 boils at around 77K, which is why you can use liquid nitrogen to cool liquid oxygen below its boiling point.

Offline Lee Jay

  • Elite Veteran
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6668
  • Liked: 971
  • Likes Given: 139
Sounds like they're reentering the pad, I think to deal with a regulator that's creeping and that will end up out of range by launch time if they don't deal with it.

Offline Zaran

  • Full Member
  • *
  • Posts: 104
  • England
  • Liked: 22
  • Likes Given: 61
Red-Team are going to the pad to investigate a potential LOX leak.

Wallops Stream went offline as soon as it was mentioned.

Offline Chris Bergin

Orbital mentioning it:
Orbital engineering team being deployed to the pad to check on a LOX line leak issue.

Offline Zaran

  • Full Member
  • *
  • Posts: 104
  • England
  • Liked: 22
  • Likes Given: 61
Red-Team on site.

The leak seems to be related to a valve in a ground systems line, a short pause of 4 minutes in the countdown ops look place (15:58 to 16:01 UTC) while work was carried out.

No word on if the problem is resolved yet, launch window permits 4-5 minutes of delays on countdown ops at most.

Offline jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 17254
  • Houten, The Netherlands
  • Liked: 2889
  • Likes Given: 183
launch is still go....
« Last Edit: 01/09/2014 03:07 PM by Chris Bergin »

Offline Zaran

  • Full Member
  • *
  • Posts: 104
  • England
  • Liked: 22
  • Likes Given: 61
LOX storage tank is to be pressurized ahead of chilldown operations.
Sounds like they are pressing ahead.

Offline jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 17254
  • Houten, The Netherlands
  • Liked: 2889
  • Likes Given: 183
for a normal countdown Orbital has 15 min built in of hold time, they now used 2 to 3 min to work this problem...

Offline Artyom.

T-2 hours

Orbital Sciences ‏@OrbitalSciences
LOX leak was on a maintenance line, all checked out and we are proceeding with the countdown
"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.

Offline Zaran

  • Full Member
  • *
  • Posts: 104
  • England
  • Liked: 22
  • Likes Given: 61
for a normal countdown Orbital has 15 min built in of hold time, they now used 2 to 3 min to work this problem...

I was unaware of the 15 minute planned hold.

Orbital says all is fine via twitter: @OrbitalSciences: LOX leak was on a maintenance line, all checked out and we are proceeding with the countdown.

Offline Chris Bergin

T-90 min weather brief  - all sounds good.

Offline jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 17254
  • Houten, The Netherlands
  • Liked: 2889
  • Likes Given: 183
Latest update from the Wallops press site. Everything still go..they have one small item they are looking at, but it is no show stopper... weather is green... at 11:40 press busses leave for viewing site...

Offline Chris Bergin

RP-1 storage tank pressure not coming up properly. Valve open issue.

Tags: