Space Launch System - Orion

Space Launch System - Orion

Author
Discussion

MiniMan64

17,040 posts

192 months

Sunday 28th August 2022
quotequote all
So about 1pm-ish still seems to be go time tomorrow…

Beati Dogu

8,949 posts

141 months

Monday 29th August 2022
quotequote all
Yes, the 2 hour launch window starts at 1.33 pm UK time. That's 8.33 am local time.

If all goes Ok, the Orion capsule will be up there for just over 42 days. Splashdown in the Pacific (off San Diego) is expected on 10th October.


Launch coverage schedule from NASA:

https://www.nasa.gov/nasalive


RizzoTheRat

25,334 posts

194 months

Monday 29th August 2022
quotequote all
Any other recommendations for decent channels to watch the launch from?

Youtube is in restricted mode on work computers which seems to block both the official NASA feed above, and Every Day Astronaut's feed as well.

Turtle Shed

1,596 posts

28 months

Monday 29th August 2022
quotequote all
They've mentioned some lightning in the area, well it never did Apollo 12 any harm....

Stussy

1,910 posts

66 months

Monday 29th August 2022
quotequote all
On NASA Spaceflight channel theyve been talking about a hydrogen leak

eharding

13,819 posts

286 months

Monday 29th August 2022
quotequote all
Turtle Shed said:
They've mentioned some lightning in the area, well it never did Apollo 12 any harm....
In an attempt by NASA to relate to modern parlance, in the event of any lightning-related embarrassment during the launch, standard procedure is that SCE will be set to AWKS.

Donbot

3,994 posts

129 months

Monday 29th August 2022
quotequote all
Boo

ecsrobin

17,298 posts

167 months

Monday 29th August 2022
quotequote all
From Sky News:

NASA has provided the following update in a fuel leak in the Space Launch System which - if not fixed - could jeopardise the timing of the launch...
"While liquid oxygen loading into the interim cryogenic propulsion stage continues and core stage tanks continue to be replenished with propellants, engineers are troubleshooting an issue conditioning one of the RS-25 engines (engine 3) on the bottom of the core stage.
"Launch controllers condition the engines by increasing pressure on the core stage tanks to bleed some of the cryogenic propellant to the engines to get them to the proper temperature range to start them. Engine 3 is not properly being conditioned through the bleed process, and engineers are troubleshooting.
"Teams also are assessing what appears to be a crack in the thermal protection system material on one of the flanges on the core stage. The flanges are connection joints that function like a seam on a shirt, are affixed at the top and bottom of the intertank so the two tanks can be attached to it."

MiniMan64

17,040 posts

192 months

Monday 29th August 2022
quotequote all
That sounds suspiciously like a scrub for today…

Caruso

7,452 posts

258 months

Monday 29th August 2022
quotequote all
I wonder how long they'll try before calling a scrub?

skwdenyer

16,730 posts

242 months

Monday 29th August 2022
quotequote all
The “crack” is now reckoned to be in ice on the outside, not the component itself.

The engine still isn’t conditioning properly.

MartG

20,746 posts

206 months

Monday 29th August 2022
quotequote all
MiniMan64 said:
That sounds suspiciously like a scrub for today…
frown

FourWheelDrift

88,749 posts

286 months

Monday 29th August 2022
quotequote all
Confirmed.

louiechevy

653 posts

195 months

Monday 29th August 2022
quotequote all
They've just scrubbed it for today

MiniMan64

17,040 posts

192 months

Monday 29th August 2022
quotequote all
Caruso said:
I wonder how long they'll try before calling a scrub?
Not that long as it turns out. Roll on September

MartG

20,746 posts

206 months

Monday 29th August 2022
quotequote all
Next available window is Friday

Simpo Two

85,865 posts

267 months

Monday 29th August 2022
quotequote all
I found a BBC feed on the launch and was struck by its childishness. 'The rocket is very big so it needs lots of fuel' etc. They didn't say how many elephants it weighed though.

Bring back James Burke!

Baron Greenback

7,044 posts

152 months

Monday 29th August 2022
quotequote all
louiechevy said:
They've just scrubbed it for today
Not supprised it rocket science and they know what's best.

AW111

9,674 posts

135 months

Monday 29th August 2022
quotequote all
Baron Greenback said:
louiechevy said:
They've just scrubbed it for today
Not supprised it rocket science and they know what's best.
This isn't science, it's engineering. SLS is based on 70's / 80's Shuttle technology. No new science at all.

Eric Mc

Original Poster:

122,288 posts

267 months

Monday 29th August 2022
quotequote all
It’s based on 70s/80s technology- as are many current rockets. But it has lots of new stuff in it too - so it is a new rocket with lots of unknowns.