Author Topic: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES  (Read 245097 times)

Offline tigerade

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #220 on: 04/23/2012 09:53 am »
So many links, hard to see if this has been posted yet:

http://www.nasa.gov/pdf/639903main_Apr_2012_60_Day_Report-508.pdf

Quote
With the upcoming SpaceX commercial cargo launch currently scheduled for April 30, it is important to understand the roles and responsibilities of the government and commercial partners with respect to mishaps that may occur during the test flights of these complex new capabilities under the commercial cargo Space Act Agreements (SAA).
For most missions undertaken by NASA, such as the Space Shuttle missions or NASA expendable launches, any launch or mission mishaps are investigated by NASA. However, SpaceX’s demonstration flight is a commercial launch from the Cape Canaveral Air Force Station and the launch and entry will be licensed and regulated by the Federal Aviation Administration (FAA). As such, SpaceX is ultimately responsible for public safety, with the FAA and Air Force Eastern Range responsible for ensuring SpaceX compliance with public safety requirements. Depending on the nature of the incident, various organizations are responsible for conducting mishap investigations as shown in the examples listed below.

• If a mishap happens on the launch pad, SpaceX and possibly the Air Force would investigate.
• If a mishap happens during ascent or entry, the FAA will investigate with assistance from SpaceX. The National Transportation Safety Board may take the lead role in the investigation, depending on the nature of the mishap.
• If a mishap happens on orbit, SpaceX will investigate.
• If a mishap happens during International Space Station (ISS) Integrated Operations, the ISS Program will investigate.
NASA reserves discretionary authority to investigate mishaps that involve NASA personnel or resources regardless of location. However, other than mishaps involving NASA personnel or resources or during ISS operations, NASA is not responsible for conducting mishap investigations for the demonstration mission.

If the demonstration mission is successful, then SpaceX and NASA will have achieved a significant milestone; but, care and attention will have to be paid to every single subsequent flight, just as it is for all space missions. Conversely, if there is a failure or significant anomaly during the demonstration mission, then SpaceX and NASA will need to understand the cause of the failure, develop and implement corrective actions, and continue to make progress towards the next mission.

Offline Chris Bergin

Per L2 The Static Fire has to slip an additional day as the range isn't free for the 26th. So now the 27th.

I'll aim to write up an article later today for the status round up.
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Offline Ben the Space Brit

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #222 on: 04/23/2012 02:17 pm »
Per L2 The Static Fire has to slip an additional day as the range isn't free for the 26th. So now the 27th.

As this issue could come up, what is the absolute minimum time that the team at SLC-40 will need to turn the pad around between the static fire and launch?
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Offline ugordan

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #223 on: 04/23/2012 02:20 pm »
I don't think it's a matter of "turning the pad", more like enough time for data analysis of the static fire.

Offline Chris Bergin

Yeah, and there's no note of any impact on the April 30 date at this time. Key to the launch date is the status review later today.

I'll write up some more mission profile stuff, summarize the static fire date moves and wait to see if we get word from NASA on a go for April 30 (which is more likely than not).
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Offline mr. mark

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #225 on: 04/23/2012 06:08 pm »
Just a little fun updates until we get the word today from NASA....

Senator Jay Rockefeller...... via Twitter post
One week from today, 1st privately-owned spaceship @SpaceX Dragon to berth w/ Int. Space Station will launch on historic 21-day mission....Seems like a few politico's are getting with the program.

Elon Musk visiting Mission Control/Houston. I hope they are smiling just as big on April 30th.
« Last Edit: 04/23/2012 06:11 pm by mr. mark »

Offline Antares

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #226 on: 04/23/2012 06:52 pm »
What was the issue about engine delamination?  I'd think that would be one of the main things to check (and not just looking at data, but laying eyes on metal) if SpaceX turns the engines on and off.
If I like something on NSF, it's probably because I know it to be accurate.  Every once in a while, it's just something I agree with.  Facts generally receive the former.

Offline Kabloona

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #227 on: 04/23/2012 07:59 pm »
What was the issue about engine delamination?  I'd think that would be one of the main things to check (and not just looking at data, but laying eyes on metal) if SpaceX turns the engines on and off.

I've not seen any further explanation. The Feb 3 SFN article said that "precautionary inspections" would be done on the engines, and I seem to recall a later article in which Lindenmoyer (?) said that both the delamination issue and the Dragon prop tank thermal issue had been put to bed...but now I can't find that article.

In any case, the most informed speculation as to what the problem might be came from jongoff a while back in the Reusable Falcon 9 thread.

Update: It was Suffredini, in an ISS briefing on 3/21, who said "we've inspected the engines, so I don't know of any issues there..." Not clear that he was addressing the delamination issue, but that would make sense.
« Last Edit: 04/23/2012 08:34 pm by Kabloona »

Offline psloss

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Offline krytek

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #229 on: 04/23/2012 08:13 pm »
@elonmusk
"Just completed the rocket rollout review at SpaceX HQ in California. Almost time to launch. Pucker factor increasing..."
« Last Edit: 04/23/2012 08:15 pm by krytek »

Offline Chris Bergin

We're hearing from multiple sources (been working it in L2) the launch date is slipping, and likely to slip past May 3.

NOT official. Don't change any plans at this time.
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Offline mr. mark

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #231 on: 04/23/2012 08:27 pm »
Well...can't say we were not warned.  :( Wonder if a slip puts into a June timeframe? Just have to see. Hope it works out for the best.

Offline Chris Bergin

Still May, but I've heard various dates, so I'd wait for something official. It's source info, we've got one heck of a record with source info, but until it's official, don't change any plans.
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Offline tminus9

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #233 on: 04/23/2012 08:57 pm »
Straight from the man himself:

Quote
Am pushing launch back approx a week to do more testing on Dragon docking code. New date pending coordination with @NASA.

https://twitter.com/elonmusk/status/194529917654941696
« Last Edit: 04/23/2012 08:59 pm by tminus9 »

Offline Chris Bergin

I wouldn't make any plans for April 30, I'd update. I'd say this is a nailed on slip now, just waiting on a NET date.

We will write an article, but we'll respect this mission and not throw a slip article on site. We'll write it up when it's official later.
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Offline Chris Bergin

Straight from the man himself:

Quote
Am pushing launch back approx a week to do more testing on Dragon docking code. New date pending coordination with @NASA.

https://twitter.com/elonmusk/status/194529917654941696

Ah there we go.

Again, remember this is rocket business. It's always best to slip and get it right.
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Offline KEdward5

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #236 on: 04/23/2012 09:12 pm »
Show of NSF strength right there. L2 with the breaking, a few hours of source checking, then on this thread but with cautions, and no short armwavey breaking news article, instead waiting for the official comments. Love this site.

Offline tigerade

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #237 on: 04/23/2012 09:14 pm »
Show of NSF strength right there. L2 with the breaking, a few hours of source checking, then on this thread but with cautions, and no short armwavey breaking news article, instead waiting for the official comments. Love this site.

My thoughts exactly.  I'm glad we got the news here first.

Offline Orbiter

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Re: SpaceX Falcon 9/Dragon COTS Demo (C2+) PRE LAUNCH UPDATES
« Reply #238 on: 04/23/2012 09:14 pm »
Show of NSF strength right there. L2 with the breaking, a few hours of source checking, then on this thread but with cautions, and no short armwavey breaking news article, instead waiting for the official comments. Love this site.

NSF is incredible with the speedy updates, just like for STS, never disappoints.

Orbiter
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Offline Chris Bergin

Nice comments, but it's the people on this site (some call them sources, I call them friends) who are the ones to thank. We have a lot of very helpful people here.

SpaceX make it official:

"Update on SpaceX COTS 2 Launch

After reviewing our recent progress, it was clear that we needed more time to finish hardware-in-the-loop testing and properly review and follow up on all data. While it is still possible that we could launch on May 3rd, it would be wise to add a few more days of margin in case things take longer than expected. As a result, our launch is likely to be pushed back by one week, pending coordination with NASA.

We will send out an announcement when a new target it set.

Thank you!"
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