STS-117 (13A) Mission- Part II

[emerrill]

They have said that the computers were up for 7min this morning, so they put the power in a better state while they could (so I think the progress is on station power, even though the computers are back down again). They have not had to use the shuttle trusters lately, they are in a pretty stable config. <br /><br />They CAN undock in the current state. It would saturate the CMGs, and then they could consider using the progress to de-saturate.<br /><br />MW will have more/better notes, I'm sure.<br /><br /> <div class="Discussion_UserSignature"> </div>

 

[bobblebob]

So this is Russian software written by Russian tech guys? That makes it a little harder for nasa to figure out what the hell has happened, if they didnt write it themselves

 

[ckikilwai]

I've seen the end of the MSB, they don't call it a too critical problem, or it least one that can be solved.<br />The biggest concern is the attitude control.

 

[emerrill]

NASA isn't really working on that part anyways. It's the Russians job to fix the any problem with their code. NASA is of course supporting with whatever the Russians need, but they have programmers to look at that code (and it's possible that their are standards in place that require code to be in english) <div class="Discussion_UserSignature"> </div>

 

[MeteorWayne]

my scribblenotes. Thanx erioladastra,and s_g.<br /><br />Bill Gerstenmeier on the heating pad.<br /><br />These are my version of the comments, not quotes. I can't read scribbles written at that speed later.<br /><br />BG: Both FGB computer banks only ran for 7 minutes this morning.<br />Good news, during that time some power routing things were done that improved the situation.<br />Bad news, they only ran 7 minutes.<br /><br />The problem is not currently understood.<br /><br />Looking at power quality (they have oscilliscopes on board, hopefully Tek <img src="/images/icons/smile.gif" /> )<br /><br />Working on techniques to manage station momentum to allow CMGs to handle it. Low momentum right now: Good.<br /><br />Questions<br />Mark Corot? <img src="/images/icons/smile.gif" /> Houston Chronicle Could Shuttle undock now?<br /><br />A: We'd like to have the Russian computers up and running before we leave<br /><br />Mike Schneider AP Q:Context of situation? How serious?<br /><br />BG: Not sure how to rate it. We don't like the problem, but we have lots of resilience and flexibility to resolve the problem, or maintain a stable condition even after shuttle leaves.<br /><br />Bill Harwood, CBS Q: Possible causes of pooter problem?<br />BG: EMI? Grounding? New cables (like LAN outside)? SOftware anomoly from having both FGB systems reboot at same time? Ideas floating out there, they will be methodically looked at.<br />There are a couple of days to resolve this until it becomes a problem requiring major action.<br /><br />PAt Peterson Fla Today Q: Fire alarms and If you have to abandon, can you go back?<br /><br />Fire alrams associated with computer problems. No fire issue.<br /><br />Yes we can come back, but we are days away with very creative and resourceful people working the problems, from that point.<br /><br />Tarak? SDC (I guess I should figure out how to spell his name, eh?)<br /><br />Q:When does decision have to be made? <br />BG :multiple days.<br /><br />Traci <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[bobblebob]

With the P6 array now retracted, could they take the newly installed array offline to try and isolate the problem? Or wouldnt there be enough power to the station then?

 

[MeteorWayne]

Good point that I forgot to mention, thanx.<br />In the MSB, BG mentioned that that most Russian systems can operate either in a computer controlled or manual mode. <img src="/images/icons/shocked.gif" /> What a great idea!!<br />So other than for Guidance/ navigation, a lot of critical systems can be run manually, so it is certainly not a crisis.<br /><br />In a worst case, they could probably even do manual CMG desaturation.<br /><br />That's why BG said chance of abandonment is "very remote".<br /><br />Get some rest erioladastra!!!!!!!!!!!1 <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[MeteorWayne]

My guess is that they could take it offline long enough to isolate the problem.<br /><br />They would have to ration power very carefully if it had to be left offline for more than a few hours.<br /><br />This is just based on what I understand of the layout, I am not an expert. <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[rybanis]

Seriously! Sleeep! <div class="Discussion_UserSignature"> </div>

 

[SpaceKiwi]

<blockquote><font class="small">In reply to:</font><hr /><p>Tarak? SDC (I guess I should figure out how to spell his name, eh?)<p><hr /></p></p></blockquote><br />Tariq <img src="/images/icons/smile.gif" /><br /><br />It all sounds pretty serious, especially with regard to the Soyuz. I don't know what power requirements that vehicle has for an emergency re-entry, but it doesn't bear thinking about that its batteries go flat in the course of trying to rescue these errant Russian C&C systems. <div class="Discussion_UserSignature"> <p><em><font size="2" color="#ff0000">Who is this superhero?  Henry, the mild-mannered janitor ... could be!</font></em></p><p><em><font size="2">-------------------------------------------------------------------------------------------</font></em></p><p><font size="5">Bring Back The Black!</font></p> </div>

 

[Testing]

Good job MW, local news reports that one puuter is back online <div class="Discussion_UserSignature"> </div>

 

[emerrill]

Nothing indicating that it is back up again, on NASA TV or any of the normal space news sites. I would guess they are reporting old news (they probably just looked at SFN, which has that as the top item <img src="/images/icons/smile.gif" /> ) <div class="Discussion_UserSignature"> </div>

 

[thereiwas]

Each Soyuz has its own solar panels, but I would not be surprised if they don't work very well when docked, due to being at the wrong angle or in shadow. Are they even enough to fully recharge the internal batteries?

 

[Testing]

Copy that. Thankyou. Hard to get hard info. Work the problem people. <div class="Discussion_UserSignature"> </div>

 

[rvastro]

Try:<br /><br />http://www.nasa.gov/mission_pages/shuttle/multimedia/index.html<br /><br />and<br /><br />http://www.nasa.gov/multimedia/nasatv/on_demand_video.html?param=|http://mfile.akamai.com/18565/rm/etouchsyst2.download.akamai.com/18355/real.nasa-global/STS-117//ksc_061307_sts117_srbcams.ram|http://mfile.akamai.com/18566/wmv/etouchsyst2.download.akamai.com/18355/wm.nasa-global/STS-117/ksc_061307_sts117_srbcams.asx<br /><br />

 

[hanny]

I'm having a brain fart today... what does CMG stand for?

 

[MeteorWayne]

Sorry, like me who doesn't know all the acronyms, I meant to post that.<br /><br />It's Control Momentum Gyroscopes.<br /><br />Basically, by accelrating and decelrating gyros in different planes, you can transfer the momentum, and keep the station, well, stationary <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[hanny]

Thanks MW. Trying to write this story for the layman was a challenge this morning at work. Unfortunately, it wasn't my headache. It was given to one of the newbie writers. But the good news was that I was Associate Producer, so I cleaned it up nice before air.<br /><br />But figuring out how to explain these latest developments tomorrow will be a cluster-eff. <img src="/images/icons/smile.gif" /> Especially for our viewers. lol

 

[summoner]

Thanks for the updates guys. And rv, FIX THAT LINK!!! ;p<br /> <div class="Discussion_UserSignature"> <p> </p><p> </p><p> </p><p> <br /><table cellpadding="0" cellspacing="0" style="width:271px;background-color:#FFF;border:1pxsolid#999"><tr><td colspan="2"><div style="height:35px"><img src="http://banners.wunderground.com/weathersticker/htmlSticker1/language/www/US/MT/Three_Forks.gif" alt="" height="35" width="271" style="border:0px" /></div>

 

[bobblebob]

Do Nasa know if the computer issue is a failure of the hardware/software, or if they have just shutdown to protect themselves? Similar to how home PC's do

 

[Testing]

Triple hardware failure possible but unlikely, status briefing in 30 min or so. <div class="Discussion_UserSignature"> </div>

 

[dougbaker]

will this be on nasa tv?

 

[Testing]

Yes <div class="Discussion_UserSignature"> </div>

 

[bobblebob]

There saying now on nasa tv that the power is sensitive to noise (not sure how that works) and the connecting of the new arrays may have caused that noise

 

[Testing]

Houston telling crew power suppies to puters are sensitive to noise, first noted annomally noted at time of panel power connection even though no power applied. Talking about a sneak ground loop and prepping crew to get a scopemeter ready to take readings, a heads up fr tracking down the problem <div class="Discussion_UserSignature"> </div>