Author Topic: SCRUB: Delta IV-H - EFT-1 Orion - Launch and Mission UPDATES (Read 253680 times)

cscott · « **Reply #420 on:** 12/04/2014 02:36 pm »

Quote from: rdale on 12/04/2014 02:20 pm

USAF has very little chance of a launch tomorrow but I'm still optimistic. Wind gusts could again be an issue but not knowing the exact criteria makes that hard for me to call. I'm also not sure why it would stop a launch more than 3 minutes out either

I think that's why they disabled the automated wind-detect-abort system for the last try. Presumably what is important is whether a high wind gust occurs in the few seconds that the rocket is clearing the tower. Measuring wind speeds during the four minutes before launch is just an imperfect proxy for that future knowledge.

sghill · « **Reply #421 on:** 12/04/2014 02:47 pm »

Quote from: rdale on 12/04/2014 02:20 pm

USAF has very little chance of a launch tomorrow but I'm still optimistic. Wind gusts could again be an issue but not knowing the exact criteria makes that hard for me to call. I'm also not sure why it would stop a launch more than 3 minutes out either

Where can we find tomorrow's forecast please?

cape51 · « **Reply #422 on:** 12/04/2014 02:59 pm »

anyone know the scanner freq. for audio....my smartphone sucked @ss today

rdale · « **Reply #423 on:** 12/04/2014 03:08 pm »

Quote from: sghill on 12/04/2014 02:47 pm

Where can we find tomorrow's forecast please?

That was the NSF forecast

Here is theirs

http://www.patrick.af.mil/shared/media/document/AFD-071220-067.pdf

Chris Bergin · « **Reply #424 on:** 12/04/2014 03:13 pm »

Guests back on. Will be the same tomorrow, so again - register yourself on the forum to avoid disappointment!

sghill · « **Reply #425 on:** 12/04/2014 03:42 pm »

Quote from: rdale on 12/04/2014 03:08 pm

Quote from: sghill on 12/04/2014 02:47 pm

Where can we find tomorrow's forecast please?

That was the NSF forecast Here is theirs

http://www.patrick.af.mil/shared/media/document/AFD-071220-067.pdf

Bleh! 40% chance of good enough weather.

"Friday, an offshore wave will enhance coastal showers and increase the onshore wind. Due to the
depth of moisture expected in the atmosphere and the tighter pressure gradient, the probability of
violating launch weather constraints increased to 60%. The primary concerns for a 24-hour delay are
flight through precipitation, cumulus clouds, and liftoff wind."

rdale · « **Reply #426 on:** 12/04/2014 03:53 pm »

Correct. Again I don't worry about rain or clouds because of the lack of time constraints. Winds are tough to say just because we don't know the specific criteria, it is confidential.

PahTo · « **Reply #427 on:** 12/04/2014 03:59 pm »

Quote from: rdale on 12/04/2014 03:53 pm

Correct. Again I don't worry about rain or clouds because of the lack of time constraints. Winds are tough to say just because we don't know the specific criteria, it is confidential.

What we do know is (per PAO Mike Curie) that surface winds exceeding 20 knots from the N-NE violate LCC. Sounds like this morning they were right on the cusp, with gusts (apparently) regularly exceeding LCC. Real hit and miss stuff given they were even considering "manual override" for the auto-stop software allowances.

John44 · « **Reply #428 on:** 12/04/2014 04:59 pm »

Orion Flight Test - Post-Scrub Briefing
http://www.space-multimedia.nl.eu.org/index.php?option=com_content&view=article&id=9197

catdlr · « **Reply #429 on:** 12/04/2014 05:07 pm »

Gantry rolled back from Orion

Published on Dec 4, 2014
The mobile service tower is retracted from the Delta 4-Heavy rocket and Orion spacecraft for Exploration Flight Test 1.

catdlr · « **Reply #430 on:** 12/04/2014 06:53 pm »

Orion Post-Scrub News Conference

Published on Dec 4, 2014
A news conference was held at Kennedy Space Center, on Dec. 4 to discuss the launch postponement of the first flight test for NASA’s Orion spacecraft. The launch was scrubbed because of an issue related to fill and drain valves on the Delta IV Heavy rocket that teams could not troubleshoot by the time the launch window expired. The next launch window opens at 7:05 a.m. Eastern on Friday, Dec. 5. NASA Television coverage of the Friday, Dec. 5 launch attempt begins at 6 a.m. EST.

dwcriswell · « **Reply #431 on:** 12/04/2014 06:53 pm »

Why are they trying for Friday, why not scrub Friday and go for Saturday? The weather looks a lot better for Sat, at the NASA briefing the guy said they could only do two tries in a three day period because they have to get more hydrogen.

At the briefing today the guy said the winds look better tomorrow because of their orientation (sideways to the rocket), but the forecast I see for Saturday looks real good.

Jim · « **Reply #432 on:** 12/04/2014 07:17 pm »

Quote from: dwcriswell on 12/04/2014 06:53 pm

Why are they trying for Friday, why not scrub Friday and go for Saturday? The weather looks a lot better for Sat, at the NASA briefing the guy said they could only do two tries in a three day period because they have to get more hydrogen.

Because they have the vehicle and crew ready. They would have to stand down for crew rest on Saturday anyways, so that is when they will get the hydrogen

Chris Bergin · « **Reply #433 on:** 12/04/2014 08:06 pm »

Ok time to move to the new update thread:
http://forum.nasaspaceflight.com/index.php?topic=36247.0

Steven Pietrobon · « **Reply #434 on:** 12/04/2014 08:27 pm »

Thanks Poole Amateur, Chris, Bargemanos and clongton for your feedback. I don't usually stay up this late and it was getting a bit hard for me to concentrate. Thanks also to everyone who provided backup links for NASA TV. Also got up early this morning (and yesterday, forgot about the dateline) for VA221 so I'm burning the candle at both ends. Hopefully I'll be OK for tonight.

Go Orion!

Targeteer · « **Reply #435 on:** 12/04/2014 09:12 pm »

That press conference was painful to watch. You'd think that there had never been delays due to weather or mechanical issues. The flippant use of launch failure, valves needing redesign, etc was almost embarrassing. Congrats to PSLOSS for asking what may have been the only intelligent, pertinent question.

Prober · « **Reply #436 on:** 12/05/2014 01:09 am »

Quote from: Targeteer on 12/04/2014 09:12 pm

That press conference was painful to watch. You'd think that there had never been delays due to weather or mechanical issues. The flippant use of launch failure, valves needing redesign, etc was almost embarrassing. Congrats to PSLOSS for asking what may have been the only intelligent, pertinent question.

funny, Only saw the tail end of the press conference and came away impressed by the questions and the professional answers. After seeing so many SpaceX "how does it feel" and talk about mice etc. This was more like a real press conference should be.

Remember the one question someone asked about the cost of the next try if it would add to the such and such price. Wish we would see more such questions of iss supply missions.

remember a press conference is there to educate

woods170 · « **Reply #437 on:** 12/05/2014 08:38 am »

Quote from: Prober on 12/05/2014 01:09 am

Remember the one question someone asked about the cost of the next try if it would add to the such and such price. Wish we would see more such questions of iss supply missions.

Boring. CRS is fixed price. Don't know about EFT-1 though.

Jim · « **Reply #438 on:** 12/05/2014 11:44 am »

Quote from: Prober on 12/05/2014 01:09 am

Remember the one question someone asked about the cost of the next try if it would add to the such and such price. Wish we would see more such questions of iss supply missions.

CRS flights are fixed priced. There are no "additional" costs for the next try.

Jim · « **Reply #439 on:** 12/05/2014 11:45 am »

Quote from: woods170 on 12/05/2014 08:38 am

Don't know about EFT-1 though.

EFT-1 is a fixed price but I bet there are some penalties or cost reimbursements between ULA and LM for delays.