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LIVE: STS-115 Flight Day 2
by
Chris Bergin
on 10 Sep, 2006 02:55
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Live update thread for Flight Day 2 for STS-115.
Attached are two overview screenshots of FD2 on the 207 page STS-115 Final Flight Plan on L2. The times are slightly off given the plan is based on the scheduled launch date, but the mission schedule is correct.
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#1
by
rdale
on 10 Sep, 2006 03:31
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Updated times (EDT / GMT)
ATLANTIS CREW WAKE UP (begins FD 2) 01:15 AM 05:15
EMU CHECKOUT 05:45 AM 09:45
RMS/OBSS SURVEY OF ATLANTIS WLE AND NOSE CAP BEGINS 06:05 AM 10:05
OBSS BERTH 11:35 AM 15:35
RMS SURVEY OF ATLANTIS UPPER SURFACES AND CREW CABIN 12:10 PM 16:10
CENTERLINE CAMERA INSTALLATION 01:15 PM 17:15
RENDEZVOUS TOOLS CHECKOUT BEGINS 01:20 PM 17:20
ODS RING EXTENSION 01:45 PM 17:45
ATLANTIS CREW SLEEP BEGINS 04:15 PM 20:15
Full TV schedule at
http://www.nasa.gov/multimedia/nasatv/mission_schedule.html
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#2
by
tigereyez
on 10 Sep, 2006 04:03
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Any idea when the FD2 Execute Packages will be up? I know it's early but I'm having problems finding them on the shuttle site. Link?
Is it just me or do they wait until FD3 before they post them all?
Thanks.
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#3
by
nathan.moeller
on 10 Sep, 2006 04:36
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It's going to be interesting seeing the SRMS and OBSS work together around the P3/4 truss. I know it won't get in the way but the clearances are going be tight I'm sure at some points.
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#4
by
rdale
on 10 Sep, 2006 04:40
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tiger: They usually weren't up until well after crew wake-up if I recall correctly from 121..
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#5
by
edkyle99
on 10 Sep, 2006 05:27
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Where are we with Fuel Cell 1? Is it running with the pump motor only on two phases still?
- Ed Kyle
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#6
by
jeffgibson
on 10 Sep, 2006 05:38
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Time for the Wake Up Call...
Moonriver???
LOL!! I think I would hit the snooze button if I had to wake up to that song!!
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#7
by
MKremer
on 10 Sep, 2006 05:57
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edkyle99 - 10/9/2006 12:14 AM
Where are we with Fuel Cell 1? Is it running with the pump motor only on two phases still?
- Ed Kyle
Yes, they've been running the pump on 2-phase (apparently it's qualified for 2-phase use as a contingency mode).
I think I read that they were requested to re-enable the phase-1 breaker (from off to on) just before crew sleep. Probably a test, but even if phase-1 is still out, they have more than enough time to take the breaker off after wake-up before loss of the pump can cause problems.
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#8
by
Zachstar
on 10 Sep, 2006 06:57
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This is awesome! the crew has allowed us to come onboard and see. You can see the picture now.
Too bad the signal blows. Hope they will keep the camera on for the next pass.
Edit: It looks like its somthing with the camera or what its hooked up to as that camera in the bay looks just fine.
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#9
by
MKremer
on 10 Sep, 2006 07:09
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Short time/pass for on board video, apparently.
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#10
by
MKremer
on 10 Sep, 2006 07:15
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So, is NASA saying 115 is an early Christmas present?
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#11
by
Zachstar
on 10 Sep, 2006 07:26
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Good NC Burn!
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#12
by
MKremer
on 10 Sep, 2006 07:50
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Y'know, as long as I've been following Shuttle flights (many years), I've never been worried about OMS operations or burn successes. Probably because they've always been highly reliable and Mission Control knows what they're doing in planning the major burn attitudes and lengths, as well as the health of the OMS systems.
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#13
by
anik
on 10 Sep, 2006 08:31
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#14
by
MKremer
on 10 Sep, 2006 08:42
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Cool, thx!
Flt day 3 (approach, docking, unbearthing/handoff) looks like it's going to really be a bear, though. And 2 consecutive EVAs on top of that, in the following 2 days.
(As much as I'd love to be where they are right now, I don't envy them the workload and "stuff" they have plans to get accomplished before undocking)
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#15
by
chksix
on 10 Sep, 2006 08:45
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Who is the CAPCOM lady on this orbit team?
Megan ...something?
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#16
by
Wisi
on 10 Sep, 2006 08:49
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Yes Brent Jett used to call that an 'agressive timeline'. I very much like the expression ;-)
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#17
by
DaveS
on 10 Sep, 2006 08:54
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chksix - 10/9/2006 10:32 AM
Who is the CAPCOM lady on this orbit team?
Megan ...something?
Megan McArthur, CAPCOM for the Orbit 1 shift. Orbit 2 CAPCOM is Terry Virts.
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#18
by
chksix
on 10 Sep, 2006 08:54
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#19
by
dutch courage
on 10 Sep, 2006 08:59
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#20
by
dutch courage
on 10 Sep, 2006 09:40
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#21
by
DaveS
on 10 Sep, 2006 09:42
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LDRI starboard wing scan underway.
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#22
by
DaveS
on 10 Sep, 2006 10:34
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Starboard wing survey complete! Moving on to the nosecap survey attitude.
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#23
by
Chris Bergin
on 10 Sep, 2006 11:08
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jeffgibson - 10/9/2006 6:25 AM
Time for the Wake Up Call...
Moonriver???
LOL!! I think I would hit the snooze button if I had to wake up to that song!!
Yikes, sleepy music!
"Good morning Crew, time to get to work, here's a song you'll like......Mooooooooooooooooooooooon Riiiiiiiiiiiver..."
Liked that overview of the crew just then. Almost up to Arianespace Ariane 5 ECA quality presentation (the best by far). Those that watch the Ariane 5 ECA launches will know how slick they open up.
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#24
by
dutch courage
on 10 Sep, 2006 11:30
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Chris Bergin - 10/9/2006 12:55 PM
Liked that overview of the crew just then. Almost up to Arianespace Ariane 5 ECA quality presentation (the best by far). Those that watch the Ariane 5 ECA launches will know how slick they open up.
Some might say that the smooth Ariane 5 show is always the same. Only the name of the satellite companies change.
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#25
by
MKremer
on 10 Sep, 2006 11:35
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Wow, didn't get to hear it, but if they're playing Andy Williams for wakeup music it's much easier to go back to sleep.
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#26
by
Thomas ESA
on 10 Sep, 2006 11:36
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Anyone see any problems via the scans so far? Looks a very clean Atlantis.
And on the Ariane TV, Jean Michel Jarre had involvement, which is why it's so good.
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#27
by
dutch courage
on 10 Sep, 2006 11:45
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Thomas ESA - 10/9/2006 1:23 PM
Anyone see any problems via the scans so far? Looks a very clean Atlantis.
Hardly any debris came off the ET so I would be surprised if they found anything.
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#28
by
MKremer
on 10 Sep, 2006 11:47
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Thomas ESA - 10/9/2006 6:23 AM
And on the Ariane TV, Jean Michel Jarre had involvement, which is why it's so good.
Well, sure
, but private enterprise can usually be more 'in tune' with viewers' expectations and likes than a typical gov't bureaucracy.
I've always been impressed with the Ariane launch commentators and launch production telecasts.
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#29
by
Chris Bergin
on 10 Sep, 2006 11:47
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Yep. Chips and Gap Fillers will be what we should keep an eye out for.
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#30
by
MKremer
on 10 Sep, 2006 11:50
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Thomas ESA - 10/9/2006 6:23 AM
Anyone see any problems via the scans so far? Looks a very clean Atlantis.
the nose cap area, so far, looks practrically spotless!
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#31
by
Gary
on 10 Sep, 2006 11:51
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What's the 'force fight' issue with the speed brake noted in FD02 execute package?
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#32
by
DaveS
on 10 Sep, 2006 11:52
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Chris Bergin - 10/9/2006 1:34 PM
Yep. Chips and Gap Fillers will be what we should keep an eye out for.
Speaking of gap fillers, I think I saw something that looked like two gap fillers during the starboard wing scan, around where the ET umbilical wells are.
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#33
by
cabbage
on 10 Sep, 2006 11:58
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Force fight: each channel of the flight control electronics drives a hydraulic channel and they are mechanically summed - if one channel goes wrong and tries to command the speedbrake the opposite way to the others you get a force fight (3 against 1, I think - assuming there are 4 channels for the speedbrake).
I imagine they could just shut down channel 3 for entry if it still misbehaves.
Edit: worth saying that this is how the redundant set of 4 PASS computers commands - the "strings" are the independent paths from the GPCs to the hydraulic actuators (with several things between) if one goes wrong the others can still win the forcefight.
Caveat: I'm a handbook reader, not an expert! Others can probably give more accurate explanations.
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#34
by
psloss
on 10 Sep, 2006 12:16
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cabbage - 10/9/2006 7:45 AM
I imagine they could just shut down channel 3 for entry if it still misbehaves.
That's what the execute package says in the workaround:
A bypass of Speedbrake channel 3 will keep the problem from generating a force fight and may be required for Entry.
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#35
by
sbt
on 10 Sep, 2006 12:17
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Ok, maybe the launch wasn't as trouble-free as I thought yesterday, there was an issue with the Speedbrake that I missed. Here is the list of current failures for FD 2 from the Execute Package, tidied up with my understanding of the meaning. Can 'those who know' correct it where I have, inevitably, messed up. Posted for info for those who don't want to or can't download and wade through the package and to check my own understanding.
Version 2
a) SYSTEM
b) FAILURE
c) IMPACT
d) WORK AROUND
e) My understanding
a) APU
b) APU 3 EGT 2 was erratic during APU operation.
c) None.
d) None. APU 3 EGT 1 is available on BFS SM SYS SUMM 2.
e) I presume EGT is Exhaust Gas Temperature, as per aviation usage. In any case they have what looks like a failed sensor on APU 3 but will switch to the redundant sensor
a) EPS
b) Loss of Fuel Cell 1 coolant pump Phase A.
c) Loss of redundancy on Fuel Cell 1.
d) Fuel Cell 1 Phase A sensor is unpowered with the cb open. L4:C cb AC1 FC1 PUMPS Phase A was opened to protect against further damage and will remain open. If AC1 Phase B or Phase C is lost, Fuel Cell 1 shutdown will be required.
e) (Previously known issue) They are still operating with Phase A on the Fuel Cell 1 coolant pump disbled (ie. 2 phase). If another phase fails then they will have to shut the FC down and shorten the mission.
a) GNC
b) Speedbrake Ch 3 transient degradation of driver output. The momentary degradation of driver outputs generated a force fight several times during ascent and after powered flight.
c) Speedbrake Ch 3 is considered failed for mission duration. The root cause of the problem is not known, and the rest of the actuators on ASA 3 have not been exonerated.
d) A bypass of Speedbrake Ch 3 will keep the problem from generating a force fight and may be required for Entry.
e) There is a failure on one of the redundant flight control circuits for the Speedbrake (Split rudder) that makes it physically fight the other three channels. This may be common to other actuators on that channel(?). The appropriate channels control of the Speedbrake has been cut and will probably remain so for entry.
a) PLBD 1
b) Stbd Dr Aft Close microsw failed on.
c) Stbd Dr will close single motor.
d) None. Mech SSR-6 available to regain motor 2 drive if needed.
e) The Aft section of Payload Bay Door 1 (Starboard / Right) had a microswitch failure that means one of its two motors will not be available for closure. (The switch is telling the system that the door is already closed) It can be closed on a single motor but there is a procedure to work round the microswitch to reactivate the motor.
a) PLBD 2
b) Port Dr Fwd Close microsw went off prematurely.
c) PBD CONFIG msg during opening.
d) None. MANUAL mode necessary for door closure if microsw not regained using AUTO mode.
e) The Forward section of Payload Bay Door 2 (Port / Left) had a microswitch failure that indicated the door was open before it should have. Manual control may be required when closing this door.
Summary added by SBT MExPkg
a) FES
e) Water in the common ducts from recent rains caused an issue with both Flash Evaporator Systems. The result was a drop in temperatures in the Hi Load Ducts (anybody care to explain what there are) prior to the systems being switched on at SRB separation. The Hi Load Duct heaters had to be switched on to prevent ice formation. This is a known issue that has been seen before. The temperature had, however, not stabilised after this procedure sufficiently at FES activation and the FES system automatically shut itself down. Cycling the systems off and then on caused a 'restart' at a point where the temperatures were stable. No further problems were encountered. The FES are used to cool the Orbiter prior to the Radiators on the inside of the Payload Bay Doors being exposed when the doors are opened.
Rick
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#36
by
psloss
on 10 Sep, 2006 12:22
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The fuel cell issue was known -- that's what stopped them from launch attempts on Wednesday and Thursday to troubleshoot.
Also, the execute package has some extra detail on the issue with the FES during ascent that they see from time to time.
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#37
by
Polecat
on 10 Sep, 2006 12:32
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How long till the first press conference, not the post-MMT one?
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#38
by
psloss
on 10 Sep, 2006 12:35
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#39
by
sbt
on 10 Sep, 2006 12:52
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psloss - 10/9/2006 1:09 PM
The fuel cell issue was known -- that's what stopped them from launch attempts on Wednesday and Thursday to troubleshoot.
Yeah, I should have made that clearer (_I_ knew, but does the reader?)
Also, the execute package has some extra detail on the issue with the FES during ascent that they see from time to time.
Good catch, I read it then jumped to the failure table, forgetting about the FES issue
Relevant changes have been Incorporated into my 'issues' post.
Rick
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#40
by
psloss
on 10 Sep, 2006 13:05
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sbt - 10/9/2006 8:39 AM
psloss - 10/9/2006 1:09 PM
The fuel cell issue was known -- that's what stopped them from launch attempts on Wednesday and Thursday to troubleshoot.
Yeah, I should have made that clearer (_I_ knew, but does the reader?)
The intended audience for the execute packages is the crew and they are probably posted publicly due to news media request. I'm happy to see them, and anyone can read them, but it doesn't matter to the publisher of this material if anyone outside the intended audience understands.
(It's PAO's problem.
)
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#41
by
dutch courage
on 10 Sep, 2006 13:13
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#42
by
SimonShuttle
on 10 Sep, 2006 13:13
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Everything I've seen is very clean, especially on the RCC. Can we have images back, as I always enjoyed the screenshots from STS-121, even if they are attached.
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#43
by
sbt
on 10 Sep, 2006 13:30
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psloss - 10/9/2006 1:52 PM
The intended audience for the execute packages is the crew and they are probably posted publicly due to news media request. I'm happy to see them, and anyone can read them, but it doesn't matter to the publisher of this material if anyone outside the intended audience understands.
I should have made myself clear again...
I was referring to the reader of my post, not that of the original MEP, whose purpose and intended audience I understand (and hence why we won't see one for Day 3 until it written at the end of Day 2).
For folks that don't, here is my understanding. They are a list of updates to existing plans and documents held aboard the shuttle. Its so large in part due to NASA generally[1] sending whole replacement document sections rather than individual pages or single line change requests to keep things simple for the crew and because many changes involve wholesale revisions to plans.
The Mission Summary which contains an updated set of abort options, system status etc. is stand alone, it updates nothing, it is the Mission Summary for the relevant day.
The alternative is to, for small items that are known to require a 'last minute' update, to have a fill-in box on the procedures. You can hear this in progress when the Commander fills in items such as Barometric Pressure and Abort parameters read to him by the CAPCOM just before launch.
[1] There is one example of a 'single line change' in todays MEP.
Rick
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#44
by
DaveS
on 10 Sep, 2006 13:32
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Orbit 1 is signing off and handing over to Orbit 2.
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#45
by
Avron
on 10 Sep, 2006 13:35
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SimonShuttle - 10/9/2006 9:00 AM
Everything I've seen is very clean, especially on the RCC. Can we have images back, as I always enjoyed the screenshots from STS-121, even if they are attached.
this is the shot that they asked to return to , approx 30 mins back...
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#46
by
psloss
on 10 Sep, 2006 13:37
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sbt - 10/9/2006 9:17 AM
psloss - 10/9/2006 1:52 PM
The intended audience for the execute packages is the crew and they are probably posted publicly due to news media request. I'm happy to see them, and anyone can read them, but it doesn't matter to the publisher of this material if anyone outside the intended audience understands.
I should have made myself clear again...
No problem, Rick -- I didn't finish my thought, either, which is this: I don't want to clutter up the threads, so I'd rather wait for someone to ask for an explanation than to presuppose that someone will ask.
There are lots of things going on and while I have some open questions, I also don't want to lose track of the real-time events.
Just my opinion.
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#47
by
RG-4
on 10 Sep, 2006 13:44
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I've been watching the port wing RCC inspection, during the center pass (step 4 I believe)
I noticed what looked to be a chip on the T-Seal between panel 8 and 9.
Did anybody catch this or is it a reflection or bird poop again?
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#48
by
psloss
on 10 Sep, 2006 13:49
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RG-4 - 10/9/2006 9:31 AM
I've been watching the port wing RCC inspection, during the center pass (step 4 I believe)
I noticed what looked to be a chip on the T-Seal between panel 8 and 9.
Did anybody catch this or is it a reflection or bird poop again?
I think I saw that -- but no idea what it is or its origin. Wonder what the pre-launch reference photos look like...
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#49
by
sbt
on 10 Sep, 2006 13:59
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psloss - 10/9/2006 2:24 PM
There are lots of things going on and while I have some open questions, I also don't want to lose track of the real-time events.
Whilst this post goes against that (last one, I promise!) I agree with those sentiments, whilst we can just about get away with this discussion during a 'quiet' phase today Day 3 is going to be hectic (although I will be at work
) and exchanges such as these will have to be clamped down on.
May I suggest that Day 3 has two threads, 'Discusion' and 'Events' so background info, questions etc. can still be asked and answered.
My intent in the 'Issues' post was to cut down on the 'how is X doing' posts and the almost inevitable multiple answers. IMHO one big post is less disruptive than many small ones. Perhaps someone else could do something similar tomorrow on the 'Discussion' thread.
Rick
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#50
by
dutch courage
on 10 Sep, 2006 14:30
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Does anybody know the last name of the PAO officer at the mission status briefing, John ... ?
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#51
by
psloss
on 10 Sep, 2006 14:32
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FWIW, a short post Orbit 1 shift status briefing -- nothing to report in terms of analysis of the inspection data yet. Paul Dye provided explanations of some of the items in the execute package.
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#52
by
nathan.moeller
on 10 Sep, 2006 14:32
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Good shots from orbit! Just got up. Anyone seen anything suspicious like Tony Cecacci's "surface deposits?"
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#53
by
Stardust9906
on 10 Sep, 2006 14:51
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SimonShuttle - 10/9/2006 2:00 PM
Everything I've seen is very clean, especially on the RCC. Can we have images back, as I always enjoyed the screenshots from STS-121, even if they are attached.
Right you are.
Views of the RCC panels and nosecap and a couple of nice views of Earth.
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#54
by
psloss
on 10 Sep, 2006 14:53
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OBSS is being berthed at this time.
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#55
by
Stardust9906
on 10 Sep, 2006 14:58
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#56
by
SimonShuttle
on 10 Sep, 2006 15:10
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Stardust9906 - 10/9/2006 9:38 AM
SimonShuttle - 10/9/2006 2:00 PM
Everything I've seen is very clean, especially on the RCC. Can we have images back, as I always enjoyed the screenshots from STS-121, even if they are attached.
Right you are.
Views of the RCC panels and nosecap and a couple of nice views of Earth.
Thanks mate.
Hey Chris, our article headline some homage to Depeche Mode?
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#57
by
Chris Bergin
on 10 Sep, 2006 15:22
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Certainly is
Although there's a really good rock version around too, but that is a classic.
More to follow when apt
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#58
by
Stardust9906
on 10 Sep, 2006 15:34
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Robotic arm survey of the crew cabin underway.
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#59
by
Oli4
on 10 Sep, 2006 15:59
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Is the Shuttle a Microsoft Windows driven vehicle?! I didn't know that. :s And I'm not sure if i like that either.
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#60
by
Oli4
on 10 Sep, 2006 16:02
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O OK thanks Gary! A sigh on relief here on my side...
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#61
by
Gary
on 10 Sep, 2006 16:04
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There is another thread somewhere here on the computer systems used by the shuttle. There much amusement on the issues with STS-121 and synching mail via Outlook!
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#62
by
Stardust9906
on 10 Sep, 2006 16:09
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#63
by
HKS
on 10 Sep, 2006 16:14
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Oli4 - 10/9/2006 5:49 PM
O OK thanks Gary! A sigh on relief here on my side...
No need to worry. I'm working with reserch and development on both Linux, Solaris and Windows on a daily basis, and I can assure you that Windows is just as good as the other operating systems regarding stability when the drivers and software you are running are stable and correctly coded.
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#64
by
JimO
on 10 Sep, 2006 16:35
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Apropos of the remark on the reliability of the OMS engine, I should point out that the flight control team for OMS/RCS for STS-1 and STS-2 included Gary Coen (Apollo vet, later flight director), plus novices Wayne Hale, Ron Dittemore, Billy Gerstenmeier, and..
.
.
.
.
.
Jim Oberg ...
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#65
by
Gary
on 10 Sep, 2006 16:36
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Nice ISS tour from Jeff Williams.
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#66
by
Gary
on 10 Sep, 2006 16:40
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There have been several mentions of equipment coming down from the ISS on Atlantis but nothing about whats being returned - What are they sending back?
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#67
by
nathan.moeller
on 10 Sep, 2006 16:43
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Gary - 10/9/2006 11:27 AM
There have been several mentions of equipment coming down from the ISS on Atlantis but nothing about whats being returned - What are they sending back?
Just the 'usual' stuff...unneeded research equipment, old clothes, whatever trash they may have lying around, containers...that sorta thing. Nothing too significant.
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#68
by
Oli4
on 10 Sep, 2006 16:47
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Do the astronauts use some sort of light drug to fall asleep? Or are they used to sleep in zero G? I guess that has to be hard...
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#69
by
nathan.moeller
on 10 Sep, 2006 16:55
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Oli4 - 10/9/2006 11:34 AM
Do the astronauts use some sort of light drug to fall asleep? Or are they used to sleep in zero G? I guess that has to be hard...
Kevin Chilton put it real well back in 1994. He said "they advertise waterbeds as being so comfortable because there are almost no pressure points. Well in Zero G there are ABSOLUTELY no pressure points. So it's very easy to find a comfortable position and just doze off." Plus I imagine as busy as they are during their 16 hour work days it's not hard to just pass out.
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#70
by
Oli4
on 10 Sep, 2006 17:30
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What does TDS mean?
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#71
by
DaveS
on 10 Sep, 2006 17:33
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Oli4 - 10/9/2006 7:17 PM
What does TDS mean?
TDS? Do you mean TDRS? TDRS is short for Tracking and Data Relay Satellite.
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#72
by
Oli4
on 10 Sep, 2006 17:33
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O i guess I missed the R there. Thanks for the answer
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#73
by
Wisi
on 10 Sep, 2006 17:48
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There is live video from the flight deck on NASA TV. Steve McLean has been in the view vor some time. Does anybody know what they are doing at the moment?
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#74
by
nathan.moeller
on 10 Sep, 2006 17:55
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Wisi - 10/9/2006 12:35 PM
There is live video from the flight deck on NASA TV. Steve McLean has been in the view vor some time. Does anybody know what they are doing at the moment?
There's a laptop station where he's positioned right now. Probably setting things up for on-orbit/docked operations. That or downlinking images, videos and e-mails.
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#75
by
hoorenz
on 10 Sep, 2006 18:10
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My smartphone really
liked to scroll that page with a dozen rms pics.
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#76
by
Seattle Dave
on 10 Sep, 2006 18:25
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Thanks guys. Really appreciate the coverage and the images as I'm on the wrong timezone for all of this.
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#77
by
Oli4
on 10 Sep, 2006 18:26
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Nice view from earth there!!!!
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#78
by
Wisi
on 10 Sep, 2006 18:30
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Oli4 - 10/9/2006 8:13 PM
Nice view from earth there!!!!
You were faster, Oli, wanted to post the same. Makes me really envy them, despite 'agressive timeline' and the like.
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#79
by
nathan.moeller
on 10 Sep, 2006 18:30
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SRMS coming up and moving around. Beautiful shot of Earth!
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#80
by
nathan.moeller
on 10 Sep, 2006 18:48
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Good NC3 burn to boost Atlantis' speed by 6.9 fps or 5 mph.
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#81
by
psloss
on 10 Sep, 2006 19:23
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JimO - 10/9/2006 12:22 PM
Apropos of the remark on the reliability of the OMS engine, I should point out that the flight control team for OMS/RCS for STS-1 and STS-2 included Gary Coen (Apollo vet, later flight director), plus novices Wayne Hale, Ron Dittemore, Billy Gerstenmeier, and..
.
.
.
.
.
Jim Oberg ...
Hey Jim,
You'll probably never see this page after it's buried by dozens of others, but can you run through your respective positions?
(This would be a good post for the historical forum.)
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#82
by
psloss
on 10 Sep, 2006 19:24
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Sounds like the crew is signing off for the day.
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#83
by
chksix
on 10 Sep, 2006 19:27
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I would have a hard time falling asleep in zero g. Everytime I dream I'm falling I wake up with a start here on earth. I've read that being in 0 g feels like hanging by your knees with your head down. Would be nice if we had some astronauts here to explain the feeling of spaceflight.
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#84
by
rcaron
on 10 Sep, 2006 19:50
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Anybody know what the issue is w/ the cabin feed having a horizontal black line? The line slowsly scrolls vertically (i.e. it creeps up the screen) and has white dashes of various lengths (reminded me initially of morse code, dit-dash!)
I seem to recall seeing this during STS-121 and the explanation being something about TDRS-Z not working so well. Could be wrong though, and my searches of the forum archives didn't turn up anything...
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#85
by
noname_77065
on 10 Sep, 2006 20:15
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I've seen that from time to time. I imagine it's something with the camcorder or the cables controlling the camcorder. I wouldn't think it's TDRS because there are plenty of other video sources from the shuttle and station that look perfectly fine.
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#86
by
Chris Bergin
on 10 Sep, 2006 20:29
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Flight Day 2 presentation to the MMT (overview) document now avaliable on L2.
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#87
by
Wisi
on 10 Sep, 2006 20:37
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chksix - 10/9/2006 9:14 PM
I would have a hard time falling asleep in zero g. Everytime I dream I'm falling I wake up with a start here on earth. I've read that being in 0 g feels like hanging by your knees with your head down. Would be nice if we had some astronauts here to explain the feeling of spaceflight.
Me too I would have problems, but because I would always think of the beautiful view outside I was missing ;-)
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#88
by
Wubbo
on 10 Sep, 2006 20:40
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A little late, but:
sbt - 10/9/2006 2:04 PM
b) Speedbrake Ch 3 transient degradation of driver output. The momentary degradation of driver outputs generated a force fight several times during ascent and after powered flight.
Rick
On reading this some questions came up:
- why are the speedbrake actuators operating at all during powered flight? Is the speedbrake used in the early launch phase for roll control?
- and why would the speedbrake actuators be moving *after* powered flight? Or would that be to move the brake to the center position?
Thanks,
GJ
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#89
by
Wubbo
on 10 Sep, 2006 20:41
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A little late, but:
sbt - 10/9/2006 2:04 PM
b) Speedbrake Ch 3 transient degradation of driver output. The momentary degradation of driver outputs generated a force fight several times during ascent and after powered flight.
Rick
On reading this some questions came up:
- why are the speedbrake actuators operating at all during powered flight? Is the speedbrake used in the early launch phase for roll control?
- and why would the speedbrake actuators be moving *after* powered flight? Or would that be to move the brake to the center position?
Thanks,
GJ
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#90
by
psloss
on 10 Sep, 2006 20:50
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FYI, PAO just noted that the post MMT briefing has been moved up one hour to 5 pm Eastern.
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#91
by
dutch courage
on 10 Sep, 2006 21:09
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Wubbo - 10/9/2006 10:28 PM
- why are the speedbrake actuators operating at all during powered flight? Is the speedbrake used in the early launch phase for roll control?
- and why would the speedbrake actuators be moving *after* powered flight? Or would that be to move the brake to the center position?
The speed brake/thrust controllers serve two distinct functions: during ascent, the pilot's speed brake/thrust controller may be used to vary the thrust level of the three SSMEs. During entry, the commander's or pilot's speed brake/thrust controller may be used to control aerodynamic drag (hence airspeed) by opening or closing the speed brake.
More details:
http://science.ksc.nasa.gov/shuttle/technology/sts-newsref/sts-rhc.html#sts-gnnc-brake
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#92
by
psloss
on 10 Sep, 2006 21:14
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dutch courage - 10/9/2006 4:56 PM
The speed brake/thrust controllers serve two distinct functions: during ascent, the pilot's speed brake/thrust controller may be used to vary the thrust level of the three SSMEs. During entry, the commander's or pilot's speed brake/thrust controller may be used to control aerodynamic drag (hence airspeed) by opening or closing the speed brake.
More details: http://science.ksc.nasa.gov/shuttle/technology/sts-newsref/sts-rhc.html#sts-gnnc-brake
Manual throttling is not done normally during ascent; it's likely not related to the reported problem.
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#93
by
dutch courage
on 10 Sep, 2006 21:34
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psloss - 10/9/2006 11:01 PM
Manual throttling is not done normally during ascent; it's likely not related to the reported problem.
I don't think the pilot would do this manualy but since he can the system would have been tested before launch. I don't know when the speedbrake became an issue?
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#94
by
psloss
on 10 Sep, 2006 21:35
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John Shannon showed a few of the ET umbilical camera images -- I assume these will be (or are) posted online by NASA. Two or three partial pieces of ice-frost ramps were shown and another little bit in the area where the LH2 PAL ramp was removed from this tank.
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#95
by
psloss
on 10 Sep, 2006 21:39
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dutch courage - 10/9/2006 5:21 PM
I don't think the pilot would do this manualy but since he can the system would have been tested before launch. I don't know when the speedbrake became an issue?
The point is that the issue is not related to the CDR or PLT hand controllers; John Shannon reported that it appears to be an electrical issue in that control channel.
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#96
by
dutch courage
on 10 Sep, 2006 21:52
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psloss - 10/9/2006 11:26 PM
The point is that the issue is not related to the CDR or PLT hand controllers; John Shannon reported that it appears to be an electrical issue in that control channel.
Yes I agree. I was answering the question why the speed brake would be used during powered flight.
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#97
by
psloss
on 10 Sep, 2006 21:58
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#98
by
psloss
on 10 Sep, 2006 22:09
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dutch courage - 10/9/2006 5:39 PM
Yes I agree. I was answering the question why the speed brake would be used during powered flight.
Since the hand controllers don't position the speed brake during powered flight (the flight control system is doing that automatically), that couldn't be the answer, though.
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#99
by
Chris Bergin
on 10 Sep, 2006 22:26
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Did I miss it, or did Shannon mention the damage to the starboard OMS that is being highlighted by sources?
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#100
by
psloss
on 10 Sep, 2006 22:44
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Chris Bergin - 10/9/2006 6:13 PM
Did I miss it, or did Shannon mention the damage to the starboard OMS that is being highlighted by sources?
I don't recall it, but I'll go back and review his opening statements...it was a short briefing.
Edit: no mention.
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#101
by
Carl G
on 11 Sep, 2006 01:42
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Chris Bergin - 10/9/2006 3:16 PM
Flight Day 2 presentation to the MMT (overview) document now avaliable on L2.
And the rest! There's so much on there. NASA really do put a lot of effort into every inch of a mission, really is great to see with the amount of depth in that above presentation and all the other stuff that was added on top.
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#102
by
triddirt
on 11 Sep, 2006 02:07
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Looks like a lot of FD3 activity is going to happen overnight
for us folks on the US East Coast... Keep good notes on the FD3 page for me..
And just to keep this note newsworthy... The wake-up calls audio are buried on nasa.gov... Here is a direct link if you like to listen to them like I do.. Should work for the rest of the mission. Moon River was a bust IMO but hopefully Brent Jett liked it..
http://spaceflight.nasa.gov/gallery/audio/shuttle/sts-115/html/ndxpage1.html
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#103
by
nathan.moeller
on 11 Sep, 2006 02:16
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I heard they saw some red discoloration on the OMS pod believed to be hydraulic fluid. Any further word on that from anyone?
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#104
by
Chris Bergin
on 11 Sep, 2006 02:17
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nathan.moeller - 11/9/2006 3:03 AM
I heard they saw some red discoloration on the OMS pod believed to be hydraulic fluid. Any further word on that from anyone?
Err Nathan
Your on the forum of the news media site
www.nasaspaceflight.com <---if you click that, you will get your answers
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#105
by
Chris Bergin
on 11 Sep, 2006 02:18
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Ok, moving to Flight Day 3. A real busy one too.
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#106
by
nathan.moeller
on 11 Sep, 2006 02:56
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Chris Bergin - 10/9/2006 9:04 PM
nathan.moeller - 11/9/2006 3:03 AM
I heard they saw some red discoloration on the OMS pod believed to be hydraulic fluid. Any further word on that from anyone?
Err Nathan
Your on the forum of the news media site www.nasaspaceflight.com <---if you click that, you will get your answers
Hahaha. Well I had just heard about it somewhere else and was seein' if there was anyone here who may have heard.
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#107
by
Firestarter
on 11 Sep, 2006 02:58
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Ironically, they probably saw it here. Certainly wasn't reported anywhere else that I saw four hours ago when that article went on site. Anyway, we should all go to the FD3 thread.
) and exchanges such as these will have to be clamped down on.