NASASpaceFlight.com Forum
NASA Shuttle Specific Sections => Atlantis (Post STS-135, T&R) => Topic started by: Chris Bergin on 05/14/2009 12:49 am
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Live coverage of an historic STS-125 FD4/EVA-1:
Previous Article: http://www.nasaspaceflight.com/2009/05/atlantis-tps-in-good-shape-rendezvous-with-hubble/
FD4/EVA-1 Article: http://www.nasaspaceflight.com/2009/05/eva-1-spacewalk-marathon-for-sts-125s-hubble/
FD4
• EVA #1 (Grunsfeld/Feustel)
– Initial Setup (MFR install, BAPS Post install), WFC3, SI C&DH, SCM, LOCKs (-V2 ASD)
(6:30 duration)
• EVA 2 Tool config/EVA 2 procedure review
Please note, this is interactive, but all posts need to be on topic. If you post images, no more than two per post.
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Wake-up music was "Stickshifts and Safetybelts" by "Cake" for Drew Feustel.
http://en.wikipedia.org/wiki/CAKE_(band)
http://www.youtube.com/watch?v=J3i7EFYk-_c
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TV rev B
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There used to be a camp-ut with pure oxygen in the air-lock on EVA's staged from the ISS.
They did not do it now. Why ?
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Sunset from orbit. Hope they catch one of 'em sunrises with that IMAX cam.
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http://www.nasa.gov/pdf/346632main_fd04.pdf
Flight Day Four's execute package is up.
"Great rendezvous! Great grapple! Have a great EVA day!"
Current orbit is 305 nm by 303 nm
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There used to be a camp-ut with pure oxygen in the air-lock on EVA's staged from the ISS.
They did not do it now. Why ?
Because the Orbiters airlock is too small to comfortably spend the night in. The ISS airlock is much larger.
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The airlock size is the same. The ISS campout does not happen in the actual airlock, but in the Quest module, which contains the airlock, but also some normal space (The 4.5m cylinder with the CBM on one side and the actual airlock on the other.). They close the door between Node-1 and Quest for the campout.
Analyst
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STS-125 - EVA 1 Overview
http://www.space-multimedia.nl.eu.org/index.php?option=com_content&view=article&id=4958
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The airlock size is the same. The ISS campout does not happen in the actual airlock, but in the Quest module, which contains the airlock, but also some normal space (The 4.5m cylinder with the CBM on one side and the actual airlock on the other.). They close the door between Node-1 and Quest for the campout.
Analyst
Anyway, don't they need to prepare breathing pure oxygen like for EVAs on the ISS? Something I am missing?
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Anyway, don't they need to prepare breathing pure oxygen like for EVAs on the ISS? Something I am missing?
As I understand it the reduced cabin environment is the first step. The EVA team will pre-breath pure oxygen while in the airlock to purge remaining nitrogen. (i'm no expert on these matters so anybody chip in with corrections).
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As I understand it the reduced cabin environment is the first step. The EVA team will pre-breath pure oxygen while in the airlock to purge remaining nitrogen. (i'm no expert on these matters so anybody chip in with corrections).
Right, they would be in "continuous campout" in ISS EVA prep terminology, since the crew module pressure was lowered to 10.2 psi on Flight Day 2. But shuttle crews have been doing this for 25 years; the ISS campout is something like a modified protocol. Depress to 10.2 is standard for all standalone shuttle flights with EVAs -- and a modified version was done for ISS assembly missions with EVAs from the shuttle airlock.
(If you listen to the air-to-ground, I believe the '10.2 servicing' or '10.2 maintenance' calls are during the post-sleep period.)
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ready to tape ops in the bay
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Live view
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The airlock size is the same. The ISS campout does not happen in the actual airlock, but in the Quest module, which contains the airlock, but also some normal space (The 4.5m cylinder with the CBM on one side and the actual airlock on the other.). They close the door between Node-1 and Quest for the campout.
Analyst
Anyway, don't they need to prepare breathing pure oxygen like for EVAs on the ISS? Something I am missing?
The goal is to purge nitrogen out of their blood. Air is 78% oxygen, meaning there's a lot of it dissolved in your blood. At low pressures, that nitrogen can come out of solution (while in your bloodstream) and create bubbles. This is know as "the bends" to divers. These emboli can vary from painful to debilitating to leathal, so there is a protocol to purge this nitrogen from the EVAs bloodstream.
You could do it by breating pure oxygen for about three hours, the nitrogen in your blood would diffuse out because there is a higher partial pressure of N2 in your blood than in the gas in their lungs. To reduce the amount of time they need to pre-breathe 100% O2, you can lower the ambient pressure.
When you lower the air pressure from 14.7 to 10.2, you lower the partial pressure of nitrogen in that air - it's still 78% N2, there's just less molecules of it in the air, so that causes some of the N2 in your blood to diffuse out. After spending an entire night at 10.2 psi, you only need to pre-breath 100% O2 for one hour instead of three.
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Crew welcoming us aboard! Middeck facing airlock, Pilot Gregg Johnson and behind Mike Massimino
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As I understand it the reduced cabin environment is the first step. The EVA team will pre-breath pure oxygen while in the airlock to purge remaining nitrogen. (i'm no expert on these matters so anybody chip in with corrections).
Right, they would be in "continuous campout" in ISS EVA prep terminology, since the crew module pressure was lowered to 10.2 psi on Flight Day 2. But shuttle crews have been doing this for 25 years; the ISS campout is something like a modified protocol. Depress to 10.2 is standard for all standalone shuttle flights with EVAs -- and a modified version was done for ISS assembly missions with EVAs from the shuttle airlock.
(If you listen to the air-to-ground, I believe the '10.2 servicing' or '10.2 maintenance' calls are during the post-sleep period.)
Campout is the term for isolating the EVA crew at a reduced pressure from the rest of ISS. Can't bring the entire ISS down to 10.2 psia like we can on shuttle.
If an EVA crew is subjected to 10.2 psia for 24 hours prior to an EVA, they will still be required to be buttoned up in their suit on 100% O2 for ~40 minutes before depress (if I recall correctly) 12 hours at 10.2 = 75 minutes prebreathe. If the cabin is at 14.7 psi, the prebreathe time in the suit is a whopping 4 hours. They're also advised to move around a bit in the suit to work the remaining nitrogen out their joints.
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Talking about Imax on EVA
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Today's EVA participants
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EMU purge, then crew will go to prebreathe lasting 40 minutes
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Going into free drift
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EVA-1 Overview:
http://www.space-multimedia.nl.eu.org/archive/sts-125/day4/replay5.php
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ready for pivot ops, to allow for instillation of the BAPS
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If that's the middeck, it looks awfully crowded for a flight with an external airlock. Are some of those boxes for emergency rations, O2 and LiOH?
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EMU purge going
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Pivot ops:
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45 minutes from Depressurization of airlock
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Pivoting
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EMU purge has stopped, now doing prebreathe
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Ready to move arm to pregrapple position
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moving to position to install MFR when the EVA begins, arm visible in the reflection off Hubble
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RMS in pregrapple position
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About 10 minutes left in prebreathe, close to depress
Not that much chatter
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HAtch is closed and locked, one minute left in prebreathe
Go for depress
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Air is 78% oxygen
Just a typo I'm sure, but for the record air is 78% nitrogen, 21% oxygen (1% argon + a few other bits and pieces)
When you lower the air pressure from 14.7 to 10.2, you lower the partial pressure of nitrogen in that air - it's still 78% N2
I believe they raise the O2 fraction to 30% (anyone got a reference?) to keep the ppO2 around 0.21 bar (3psi) which is healthier for a crew that is having to concentrate on complex tasks. That reduces the N2 to about 0.5 bar which further helps to purge body tissues.
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7 psi
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5 psi, valve is closed performing leak check
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Airlock valve to zero
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3 PSI
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Air is 78% oxygen
Just a typo I'm sure, but for the record air is 78% nitrogen, 21% oxygen (1% argon + a few other bits and pieces)
When you lower the air pressure from 14.7 to 10.2, you lower the partial pressure of nitrogen in that air - it's still 78% N2
I believe they raise the O2 fraction to 30% (anyone got a reference?) to keep the ppO2 around 0.21 bar (3psi) which is healthier for a crew that is having to concentrate on complex tasks. That reduces the N2 to about 0.5 bar which further helps to purge body tissues.
With the pressure being at 10.2psi, would that be about the same pressure you would get at 10,000 ft?
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2 psi
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o.8 psi
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0.5 psi, checking hatch
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Verifying waist tethers are set ans safety tethers
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Hatch is open, depress valve closed
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power to batteries!
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EVA officially started!
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John's WVS not working
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John will be red, Drew will be all white
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7:52am CDT EVA start time
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Water on
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Good readings on the suits
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Power cycled WVS, now working
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opening thermal cover, John out first
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drew's feet visible
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CNN just reported this spacewalk will NOT use any tethers. Oh, where's Marcia Dunn when you need her?
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CNN just reported this spacewalk will NOT use any tethers. Oh, where's Marcia Dunn when you need her?
They wont use SAFER, will use tethers.
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Really gives you a since on how big the cargo bay in the Orbitor is.
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Drew heading out
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CNN just reported this spacewalk will NOT use any tethers. Oh, where's Marcia Dunn when you need her?
They wont use SAFER, will use tethers.
Robyn Meade: ".. and this time they won't be using any thethers! Out in space without a tether. Can you imagine that?"
<sigh> This is why the general public thinks NASA takes unnecessary risks <:rant mode off>
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John heading out to get the foot restraint ready, drew just getting used to the EVA environment, then will move to Widefield camera and will release latches on case
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i was just writing how i noticed rite out the hatch they werent wearing and SAFER units on the suits.. .
found that intresting.. i guess it makes the suit to bulky for the work they are doing on Mr Hubble
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CNN just reported this spacewalk will NOT use any tethers. Oh, where's Marcia Dunn when you need her?
They wont use SAFER, will use tethers.
I was just going to ask that, I wasn´t seeing SAFER on them!
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CNN just reported this spacewalk will NOT use any tethers. Oh, where's Marcia Dunn when you need her?
They wont use SAFER, will use tethers.
Miles O'brien should smack him with a mackerel
Robyn Meade: ".. and this time they won't be using any thethers! Out in space without a tether. Can you imagine that?" <sigh> This is why the general public thinks NASA takes unnecessary risks <:rant mode off>
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WVS! Drew is 20 I suppose
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translating to latches
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John heading to attach MFR. Drew conducting Translation Adaptation (15mins of moving around to practise movement, 1st spacewalk remember). Drew seems quite happy out there, "woopeee"
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Like a bronze mirror
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With the pressure being at 10.2psi, would that be about the same pressure you would get at 10,000 ft?
http://www.mathpages.com/HOME/kmath054.htm
h=36089-20783*ln(p/3.2824)
which comes out as 12500ft
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Yes, Drew sounds like he is having FAR too much fun out there... he giggled like a schoolgirl when he came out of the airlock and looked "up" at the Earth for the first time! Someone should probably cut together a video of his antics sometime, should be lots of fun to watch :D
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John getting down to work
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i was just writing how i noticed rite out the hatch they werent wearing and SAFER units on the suits.. .
found that intresting.. i guess it makes the suit to bulky for the work they are doing on Mr Hubble
They don't use SAFER because if they become untethered the shuttle can maneuver and go get them. On ISS they don't have that option...
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FYI -- Herschel and Planck are on their way to L2!
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foot restraint already on, moving to ingress position
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on the arm, john underneath Hubble
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Drew waiting on arm
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Release and extend mechanism
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Wide field 2 safed
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Imax 3d, working on aft fixture which will temporarily hold Wide field 2:
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Drew ingression MFR
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FYI -- Herschel and Planck are on their way to L2!
My internet connection is struggling to run both feeds!
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Television back in 6 minutes, approaching 40 minutes in
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Drew has glove inspection, John has pit pin, gloves look good, pins went in easily
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CNN corrected itself on the tether issue, but claimed that's what they were "told". Guess my letter to them did some good. :)
"Drew has glove inspection, John has pit pin, gloves look good, pins went in easily"
I figured glove inspections would be done pretty frequently. Some of the access points on Hubble probably have sharp edges in the current MMOD environment.
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Drew ingressed MFR, has collected PGT and rachet and is now performing a glove check.
John installing pip pins now that Hubble has been pivoted to 90 degrees
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Go for wide field ops
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John putting cover on, Drew getting fine guidance sensor handhold
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Drew "Wow, amazing view of the vehicle"
Who turned off the light?
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Drew getting close
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John is preparing to install thermal cover
Drew has arrived at wide field cam, will install handle with 4 zip nuts and remove ground strap
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Drew installing fine guidance sensor handhold, wants to break torque
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paint is all intact, sort of brown, wants six inches closer to telescope
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television back in 17 minutes, blocked to protect telescope
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fine guidance sensor handhold installed and snug, PGT is next
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scratch marks and nicks from MMOd
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Once the hand hold is installed on the WFPC2 Drew will then drive out the sensor package with the PGT, approx 22 turns, and then free hold the unit
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Looks clean
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Drew disengaging latch on widefield camera 2, assisted by John
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not able to break torques with the pistol grip tool, getting contingency multitorque limiter, did move a little
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Johns WVS, noticed a rivet floating away but caught it and stored it
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really buried
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Have the contingency tool, wants to know if they can bring it in afterward and Houston agrees
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passing torque limiter to Drew, grease all over the bolts
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Getting ready to remove WFPC/2 (finally found the right acronym!)
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working hard, three attempts but still no joy
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Ronsmytheiii, your updates are very helpful. I don't understand astronauts very well
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Are they greasin some points now?
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Removing CMTL, aka removing the limiter
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not exceed 57.1, doing step two working on the grounding strap
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shutltle glows in sunrise
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John could go get the short adjustable from airlock while Drew continues
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Take your time John, short adjustable best next course of action
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There is unlikely to be a replay of the ascent video from the flight deck as the the recording appears to have failed, we're seeing on the MER status. They are going to try and troubleshoot, however.
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John at thermal cover, Drew taking pictures
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John heading back out
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Do I hear correctly - short adjustable rachet?
Can someone explain me whats that tool is reposonsible for? ???
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What are the 3 large holes below the WFC? (not in a position to open the docs at the moment!)
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What are the 3 large holes below the WFC? (not in a position to open the docs at the moment!)
You mean the two black ovals and the circle? That's HST's three Fixed Head Star Trackers(FHSTs).
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handing off to Drew:
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I can see what a pain it is to work with those gloves.
I'd have trouble without gloves.
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trying again:
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What are the 3 large holes below the WFC? (not in a position to open the docs at the moment!)
You mean the two black ovals and the circle? That's HST's three Fixed Head Star Trackers(FHSTs).
Thanks...doh! I should have guessed...because what do they look like..holes for optics :)
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still flipping, working together to try again
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What happens if they can't free the bolt?
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Great try, take ratchet to clockwise and try to eliminate stiction, still no joy:
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get a hammer ;-)
What happens if they can't free the grounding strap?
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trying clockwise again, going to loose mode
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still flipping, trying with ratchet only
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1 hr 49 minutes in, grounding strap removed this is the bolt that holds WFPC/2 to the telescope
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another try, 2 ft in Megan
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Call Musgrave and Hoffman, they installed the thing back in '93.
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Keep your fingers crossed.
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What if break the bolt? No issue with latch take to failure mode, will need to reconnect ground strap if necessary
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I get the impression they'd rather attack the thing with a sledge than just leave WFPC/2 where it is... ;-)
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It turns! :-D
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It turned!, turning easily, loosely spinning
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Woohoo! It's loose!
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I think we dodged a bullet there
back on the nominal timeline, ratchet limiter back on
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Never thought I'd be so worried about the turning of one bolt!!!
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Houston liked it, now in nominal step 10 on the timeline. Megan moving the SRMS two feet away.
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Sounds like it just needed a little more than the 45 ft/lbs to free it up.
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Ok, lets take WFPC/2 out now!
PS Columbus does not have anything on the mirror effect from hubble!
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"Back to our regularly scheduled programming", heh. They're back on the timeline and waiting to take WFPC/2 out.
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Backing attach point out, 22 turns!
moving out woohoo
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Drew going to back out the bolt for WFPC/2, should be 22 turns.
"Woohoo, it's moving out!" Great news.
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A little easier than in the pool, 16 years and been doing it well, WFPC/2 free!
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WFPC/2 is free. 16 years since it was installed! Next step is to slide it out. 2 hours, 5 minutes PET.
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WFPC/2 is ready to come out of the telescope. Megan moving Drew back.
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coming out
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Guide rails are out. Good rate. Mirror still in.
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Looking good:
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Mirror is just outside of the telescope. Go for the maneuver. WFPC/2 is out of the telescope. Moving to temp stowage location.
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How far behind the schedule are they now then?
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Nothing unusual, diver hold up!
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Clear of hubble, moving to fixture
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Not enough o's in "smooth" for that removal.
Nicely done.
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inside Hubble!
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"This is ultimately cool for me to be looking through the optical vents."
Nothing looking wrong with the WFCP/2. Megan clear to move aft to the stowage location.
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Really nice wide shot now...
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Just a little delayed
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Great shot of the WFPC/2! Drew heading to the SLIC.
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How far behind the schedule are they now then?
I believe they said they're back on the timeline.
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Ready to start down
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WFPC/2 is in the aft section, and is no longer being held by Drew.
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it is in
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"This is ultimately cool for me to be looking through the optical vents."
Nothing looking wrong with the WFCP/2. Megan clear to move aft to the stowage location.
Would have been the perfect time to say "Wait, there's some writing inside the enclosure. It says, "Story was here!' :)
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On to W site
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Hubble looks as bit different with no WFPC in it!
"This is a lot lighter than it is in the pool!"
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Guessing that they are going to get WFPC/3!
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opening easily
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Sunset and into nightfall.
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installing handrail:
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Attaching handrails to WFPC/3. All going smooth so far.
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releasing bolts
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Looks like a loss of KU
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Vent valves on the WFPC/3 have been opened and it is vented. Drew is reconfiguring his pistol grip tool to disengage the ground strap bolt.
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Vent valves on the WFPC/3 have been opened and it is vented. Drew is reconfiguring his pistol grip tool to disengage the ground strap bolt.
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Ground strap bolt released, John has the strap. Giving PGT to John to hold while Drew readies for WFPC/3 release.
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Period of ratty COMM for 4 minutes. KU expected to be back within 15 minutes.
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Disengagement of the A-Latch went without incident. Should be 22.5 turns to fully disengage.
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10 turns in, all going smooth.
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22.5 turns done. All smooth.
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WFPC/3 is loose. Seems to still be engaged in the A-Latch, though. Houston agrees with a few more turns with the PGT to see if they can loosen it up.
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Four turns of the PGT on the A-Latch bolt and it's free!
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About 25 minutes behind schedule due to problems releasing the WFPC/2. Drew coming up out of the PLB with WFPC/3.
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FOD on the connector. Getting a real scientific plan to take it off, just gonna flick it! ;)
Successful, did NOT touch the connector. Glove check is clean.
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Mirror looks "very clean" according to Drew. Going to start pitching WFPC/3 up and getting ready to install into Hubble. John going to check the canister to make sure things are clean before installing WFPC/2 into the SLIC.
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I just realized I have a 15 second delay on my nasa tv feed as the postings here were actually ahead of what I was watching :)
Ron et al you are doing an awesome job. THANKS!!
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Over Australia
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2h 40m PET. Drew being maneuvered up to the HST with WFPC/3.
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rotating Drew and WFPC/3 in plane of the telescope
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KU is back, had a quick helmet camera shot.
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moving in:
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WFPC/3 is getting lined up to be inserted into the HST. John guiding Drew and Megan.
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Megan moving Drew closer to the opening, then they will adjust as needed.
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WFPC/3 is being maneuvered into the HST. The A-Latch is past the Labrynth (if I heard correctly) field.
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starting to enter
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WFPC/3 is almost in, just a few inches to go. Megan maneuvering the SRMS very slowly. Second roller is in.
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3 inches to go, all going well.
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on the rails:
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Stop motion. WFPC/3 is in! Time to get it installed! First is to drive the A-Latch bolts in. Should be 22.5 turns in.
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WFPC/3 is in!
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Hmm.. is there the Moon in da left corner of the viev? :)
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22 turns on A latch
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Once the camera is in Drew will perform the reversal of the procedure to remove WFPC2; Tighten A latch 22 turns, install the ground strap, install the blind mate interface. John will assist by holding the PST when Drew is not using it.
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Drew driving the A-Latch bolts to engage. 2 turns in.
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22 and 3/4th turns in, the torque light is engaged.
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Bolt is in:
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A-Latch is firmly engaged. Now working on the MSTL (Multi-Setting Torque Limiter), wanting to see it slip as that will ensure the correct torque on the bolt.
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MSTL slip was seen. Good job with the torquing.
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Ground strap up next. 4-6 turns.
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Please keep up the great coverage!!!! I was stuck in a meeting all morning, now I'm back up to speed!
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"6 and a bit with a green light on torque." Now up to the blind mate interface.
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Drew's WVS
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Coming up on sunrise. HST Control waiting to check the connections with WFPC/3.
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Atlantis is 350 NM up, heading to the Equator to start her 46th orbit.
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Coming up on sunrise. HST Control waiting to check the connections with WFPC/3.
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removing handhold
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Atlantis and crew are now experiencing a great orbital sunrise.
"Let there be light!"
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Let there be light:
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Handrail is removed, Drew is ready to go. Great view of the sunlight hitting the HST SAW. Gloves look good.
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Nit: the new instrument is called Wide Field Camera 3, or WFC3:
http://wfc3.gsfc.nasa.gov/
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http://www.stsci.edu/hst/wfc3
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handhold removed
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3 hours PET into this spacewalk. WFC3 install went very smooth.
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going to install handrail on WFC2
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Ok, so what is next now? Gyroscopes?
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Drew's glove check has a nick in the turtle neck on the left hand, not serious at the moment. Right glove looks good.
I've got to finish some class work, was fun seeing them put WFC3 into the HST. I'll let Ron take over again.
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When WFC2 comes home, where will it end up? The Smithsonian?
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Glove check, 1/8 inch long nick only in turtle sksin
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Ok, so what is next now? Gyroscopes?
WFPC2 cleanup then onto SI C&DH R&R
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Ok, so what is next now? Gyroscopes?
No, I believe that they move on to replacement of the SIC&DH unit.
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John opening lid
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Going for ground strap
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Drew translating with WFPC-2 after 16 years of service
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I can understand that in an EVA that extends more than 6 1/2 hours that they must get fairly hungry since they can't really eat anything. But isn't there some type of mechanism inside their helments from which they can draw an occasional drink of water/liquid nourishment? I can't see how they can go for such a length of time without drinking anything.
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46 orbits for Atlantis. How many for Hubble?
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looking for guiderail:
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I can understand that in an EVA that extends more than 6 1/2 hours that they must get fairly hungry since they can't really eat anything. But isn't there some type of mechanism inside their helments from which they can draw an occasional drink of water/liquid nourishment? I can't see how they can go for such a length of time without drinking anything.
The EMUs have a drink bag.
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WFPC2 nearly stowed, Drew about to repeat the A latch 22 turns + ground strap mate procedure one last time
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For A-Latch, turning 22 times, good aliveness test on WFC3
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Ok, so what is next now? Gyroscopes?
WFPC2 cleanup then onto SI C&DH R&R
This is probably the bazillionth time it's been posted, but this graphic is handy at least for the nominals; clipped it out of NASA's press kit, but probably elsewhere, too.
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3hours 12 into space walk. WFC3 declared alive
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Checking on the troublesome bolt:
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Going to reverse direction and disengage
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I can understand that in an EVA that extends more than 6 1/2 hours that they must get fairly hungry since they can't really eat anything. But isn't there some type of mechanism inside their helments from which they can draw an occasional drink of water/liquid nourishment? I can't see how they can go for such a length of time without drinking anything.
The EMUs have a drink bag.
32 oz. of water is all they get and some don't fill it up all the way since it takes up chest space. Flt docs don't like that ;-)
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higher torque and different direction: alpha 5, 15.5, counterclockwise 2, mark around end of the socket, in surface a little bit
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going to remove WFC2 a few inches, then try to reinsert. It does not want to go home!
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Latest article, which includes MER latest and what is being classed as an investigation by MAF into the LOX IFR foam loss from ET-130 during ascent:
http://www.nasaspaceflight.com/2009/05/eva-1-spacewalk-marathon-for-sts-125s-hubble/
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Going to swap out ratchet, want to try hybrid first
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I really don't like this idea of only half-fixing ACS, and presumably the crew don't either... What's the betting they push for that EVA3 extension?
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22 7/8 turns! Go to install ground strap
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Loss of Ku, A latch final torquing
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Didn't see it noted in the last couple of pages, but PAO relayed that the STOCC reported a good aliveness test on WFC3 and that commanding of the old SIC&DH to complete preps for removal has started.
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Cleaning put now, storing handhold
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John has the handrail, installed:
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Going to close lid:
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Latest article, which includes MER latest and what is being classed as an investigation by MAF into the LOX IFR foam loss from ET-130 during ascent:
http://www.nasaspaceflight.com/2009/05/eva-1-spacewalk-marathon-for-sts-125s-hubble/
Thank you. Is this a static article, or can one expect that you will update it as the day/EVA proceeds (as you did with yesterday's article). Either way is good, Chris.
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Next will be hand off of items
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Imax door is open, over West Africa
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As a matter of interest:
WFPC2 = 620lbs
WFC3 = 900lbs
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Go fo SI C&DH R&R
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IV handoff, Bueno will not take over
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John moving to Mule
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removing J bolts on bay 10:
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Latest article, which includes MER latest and what is being classed as an investigation by MAF into the LOX IFR foam loss from ET-130 during ascent:
http://www.nasaspaceflight.com/2009/05/eva-1-spacewalk-marathon-for-sts-125s-hubble/
Thank you. Is this a static article, or can one expect that you will update it as the day/EVA proceeds (as you did with yesterday's article). Either way is good, Chris.
Much appreciated!
The way we work a mission is to have one baseline article for the FD, which will be updated during the day, such as at conclusion of the EVA, MMT meeting updates etc.
If there's a major new or breaking news angle, then there will be an additional article added - which would be standalone/static.
Some sites prefer to add small articles during the day, but I personally prefer a large one-stop update article, as we have the forum for the live additions on the progress of the FD.
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removing new SI C&DH
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All door bolts released, go to open door:
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Old SI C&DH
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have to remove 10 bolts
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4 spring bolts released, now working on keyhole bolts
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John almost done removing the new one, will swap with drew for the old one
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Old SI C&DH has been removed
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New SI C&DH off of the MULE
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Old SI C&DH has been removed
What is SI C&DH?
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tradeoff, now Drew is going back up to bay 10
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Science Instrument Command and Data Handling,
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ready to install
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puting bolts on the SI C&DH
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What is SI C&DH?
http://www.nasa.gov/mission_pages/hubble/servicing/SM4/main/SICDH_FS_HTML.html
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I was hoping to get some good pictures of this. Last October when the SI C&DH went bad and the had to switch to side B, a lot of talk was made about how hard or simple it would be to change. Primarly because of all of the cables you could see.
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They seem to be a little behind schedule according to the Nominal Timeline, but excellent work so far!
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No joy on bottom right, now have it
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can someone take over, need to do something quickly
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old unit stowed. Now closing cover
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Undoubtedly beautiful views
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thermal cover closed
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John going to work on softcapture mechanism. Drew going to close bay10 door.
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Megan is doin amazin job.. with all that patience :)
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Anyone know when the rate sensor units are going to be replaced? Just wondering if we might catch a glimpse of 'em!
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Anyone know when the rate sensor units are going to be replaced? Just wondering if we might catch a glimpse of 'em!
On EVA-2, tomorrow.
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Feustel took last observation of new module. Now the Bay 10 is bein closin
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soft capture mechanism installed
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Good aliveness test on SI C&DH.
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On EVA-2, tomorrow.
Thanks, much appreciated!
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soft capture mechanism installed
[/quote
That quickly? Are you sure?
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soft capture mechanism installed
That quickly? Are you sure?
Yup. There was only one bolt to drive a specific # of turns to fully engage. The battery was temporary to enable some LED sensor indicators to indicate full engagement was successful.
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John behind the mule, getting V2 door latch over center kit
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soft capture mechanism installed
That quickly? Are you sure?
Yup. There was only one bolt to drive a specific # of turns to fully engage. The battery was temporary to enable some LED sensor indicators to indicate full engagement was successful.
Great! So it's already for the upcoming rendezvous with Orion . . . .
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They are working on the V2 door latch over center kit now.
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Drew has all three kits john moving to position, Drew heading to V2 position
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Drew has all 3 latch kits, now moving to the door location.
John now moving to bolt lube task.
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Sounds like they're getting get ahead tasks done on this EVA, right?
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soft capture mechanism installed
That quickly? Are you sure?
Yup. There was only one bolt to drive a specific # of turns to fully engage. The battery was temporary to enable some LED sensor indicators to indicate full engagement was successful.
Great! So it's already for the upcoming rendezvous with Orion . . . .
Most likely a robotic probe to deorbit it or move it to a "graveyard" orbit.
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Widefield 3,
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In position to install kit
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Having some issues with the kit, trying full release on bolt, looks like that worked:
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sounds like there is a problem with a bolt
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latch looks good, going on to next
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John working on lubing bolts, now done John only needs to get the camera or NOBLE, going for the plugs
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Drew working on second latch over center kit -V2
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Bolt had a lot of torque, but will be fine for the lock
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still have interference with the shim, John heading over to help
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want to do bottom bolt first to see if that helps, Houston talking about it
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release bottom bolt no more than 2 terms to hopefully relieve the center
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KU back at 2:12 pm CST (3:12 pm EST)
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Loosening did help, want to turn a few more times
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Didn't they have issues with this door closing properly on the last repair mission?
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Go for a couple more turns, then try again
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going for two more
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does not think moving the bolt anymore will do anything, loose in bathtub. want to loosen handle bold
looks like we have TDRSS-Z
mark on telescope
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Does not want to engage the lever, should have lubed it
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hubble has been fighting all day today!:, trying to fit again
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Partial install for bottom before finishing the middle, still now seating
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What are the locks for that they are working on? No sound
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think that after loosening middle bolt bottom one tightened, so going to loosen it, it is tight again, go for full release on bottom bolt
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Atlantis will be moving into daylight momentarily.
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talking about the bottom bolt, drew want to do the bottom middle first, partial on the bottom another 10 minutes until payload bay cleanup
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Is there presentation on L2 with high resolution of this image?
http://www.nasaspaceflight.com/wp-content/uploads/2009/05/a46.jpg
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full install on the bottom, skip middle, drew says he thinks he can do it in a few minutes so Houston says ok
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what to do with bolts? either locks or bolts
looking better, remove lock on lower middle, drew thinks like there is a high running torque, wants to throw handle but goign to stand down
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concern for clearances for lock may cause a gap, do not want to install lock, best effort to reinstall bolt.
No gaps, going to lower middle bolt to tighten
After doing bolt, want to lube it
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working on the pesky middle, PGT torqued out no turns
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finally turned, will not turn at any other setting, ASLR install now
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its a day of surprises
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four more out, but torquing out, but get the four
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Is there presentation on L2 with high resolution of this image?
http://www.nasaspaceflight.com/wp-content/uploads/2009/05/a46.jpg
It's from the Delta SSP FRR "MOD Overview" Presentation, which goes through the Flight Days. All the images are off L2. Bumped the presentation.
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retorque on handle bolt, retrieving aft shroud repair kit, should take 10 minutes
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John with shroud kit
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That is one amazing view, seeing the reflection.
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Do they move to some other place near Hubble? I thought that these latchers have to be installed on -V2 Aft Shroud doors..
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installed:
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going to clean up
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Breathtaking.
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Altman, good work so far, expeditiously but carefully make your way back
Looking at Baja and texas
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Glove inspection
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John heading back to the airlock, tool inventories
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The thread commentary was a bit opaque. Did they get all the LOCKs on?
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With the wrap up that is it for me, thermal hatch is open:
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Is there scheduled a briefing today? Would like to hear about this mess with latchers from headmasters ;)
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The thread commentary was a bit opaque. Did they get all the LOCKs on?
Not entirely sure; the -V2 Aft locks were a prerequisite for the full ACS repair on EVA3.
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Is there scheduled a briefing today? Would like to hear about this mess with latchers from headmasters ;)
There is a mission status briefing after each EVA. Since the EVA is running long, the briefing will start 30 to 60 minutes after the EVA ends.
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With the wrap up that is it for me, thermal hatch is open:
What can I say, except MANY thanks for all the great coverage. Sucks I had to miss (live) this being at work.
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There is a mission status briefing after each EVA. Since the EVA is running long, the briefing will start 30 to 60 minutes after the EVA ends.
Thanks for the answer.. didnt know about this timing.
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Thanks for all of those posting. Without being able to hear the comentary, this helps in following NASA TV. Great coverage.
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Excellent work with the coverage Ron, superb.
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Is there scheduled a briefing today? Would like to hear about this mess with latchers from headmasters ;)
There is a mission status briefing after each EVA. Since the EVA is running long, the briefing will start 30 to 60 minutes after the EVA ends.
They might do a joint MSB/Post MMT too, as it's heading to that timeframe.
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"Ready for a hot shower and a good meal"
John in the airlock
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now getting inside the airlock
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Working away in the airlock
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Nice and cozy in the orbiter airlock!
Water off. Two minute timer on - thermal cover on, then close the hatch.
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Hatch closed and locked.
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What's the two minutes for?
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Going on to internal power via the checklist.
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02 actuators to press.
John: "We gave Hubble a hug, but in traditional Hubble fashion, it threw us a couple of curves, but we have overcome them."
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7hrs 20 min EVA-1 (50 minutes over schedule).
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John now up to 44 hours 52 mins of EVA time - 8th in the rankings.
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MSB 4:15pm Central, 10:15pm UK (If there be an MMT after that, or combined, isn't noted).
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What's the two minutes for?
Allows the ice block to sublimate from the suit system completely before repressing the airlock. Residual water on these plates will freeze too quickly during the next EVA and warp the plates.
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Orbit 1 at MCC-H praising the EVAers, "despite the wrinkles", and wish them the best for tomorrow.
Scooter: "I think it was a team effort today. We look forward to doing it again tomorrow."
Handover to Orbit 2.
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"The Mikes" for EVA-2:
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1 down.... 4 to go.... good coverage today...
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40 tiles now classed as missing from the FD2 inspections. Should still take just an hour in the same sweep.
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Oh... the call came that they have to do inspection of 40 tiles...but they can still do it in one sweep. They will simply adjust the zoom on the camera.
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40 tiles now classed as missing from the FD2 inspections. Should still take just an hour in the same sweep.
Geesh Chris you had my heart jumping there.... When I read "40 tiles now classed as missing"... I almost stopped breathing... :)
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40 tiles now classed as missing from the FD2 inspections. Should still take just an hour in the same sweep.
Geesh Chris you had my heart jumping there.... When I read "40 tiles now classed as missing"... I almost stopped breathing... :)
I had the same reaction when I first heard about the 16 tiles "missing"! ;)
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Nice lighting conditions:
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Some of the Hubble big guns will be attending the MSB.
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Nice lighting conditions:
Now would be a good time for a PAO event...pretty picture, but it's sort of 'static'. ;)
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About five mins to the MSB, not much going on otherwise, unless you've been refereshing this thread for the last five minutes waiting to hear about the termination of the FES Dump :)
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I have... does that make me a junkie?
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Would you be here otherwise? :)
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MSB has started
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And it's going to be a long one!
Tony: "It's been a long day. A really great FD4, EVA1 is in the books.
"What you saw today was a result of a lot of hard work and it turned out well.
"RCC has been cleared for entry (pending FD9 Late Inspections).
"We're adding a tile survey for FD5 (due to the "missing from FD2 Inspection" 40 tiles in the port Chine area."
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Slight flub regarding the tile location. mentioned chine area, but should be below the thrusters near the nose cap.
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Main bolt on the Wide Field Camera ("A latch") torque was problematic. Did not shere the bolt, and it pulled out ok.
SI C&DH went to plan.
Explaining the latch problem...pretty much overviewed as required by Ron's coverage.
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They extended a congrats to ESA on the launch of Ariane for Hershel & Plank observatories. :)
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Characterizing Hubble (as something I can't have a hope in hell of spelling) teenager (you'll get to hear that via John 44's video!)
Praising the successful launch of two telescopes via Ariane 5 ECA today.
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Schizophrenic? Juxtapositional? Floccinaucinihilipilificational?
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Preston: WFC3 testing will be conducted overnight. Noting how the astro training hard work helped them overcome the problems during EVA-1.
Another Hubble guy saying he's aged five years today.
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I don't think there's going to be a post MMT presser, as Tony mentioned the RCC being cleared, when that's something Leroy would have covered.
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Frank Morning on the TPS inspection tomorrow (any reason?)
"No indications from the imagery that anything hit the orbiter, we just missed the area, and they want to check it."
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Previewing EVA-2, they note that Mass will be physically entering Hubble, so he has to be very delicate.
Preston notes he had a lot of confidence in the EVA proceedures, and just wanted a good launch and flight to get to Hubble. Once they arrived, he was very confident they would have a great mission, despite the rough spots today.
Notes they have a lot of experience behind them. Was really glad the TPS held up very well for the safety of the crew, and for Hubble as they'll get their five EVA days.
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The Hubble guys really love their telescope.
"I just wanted to go and give Hubble a hug - but John will have to do that for us."
Happy that "our seven friends safely arrived" and appreciated Scooter's comment when approaching Hubble that it looked like a star approaching from the east.
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Robert asking about the value of the returning hardware for engineering overviews as well as exhibitions.
Preston notes interest in hardware that's been in an MMOD environment. It'll go around some centers then be put back together for exhibition.
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Characterizing Hubble (as something I can't have a hope in hell of spelling) teenager (you'll get to hear that via John 44's video!)
Praising the successful launch of two telescopes via Ariane 5 ECA today.
http://en.wiktionary.org/wiki/recalcitrant
marked by a stubborn unwillingness to obey figures of authority
hard to deal with or operate
;)
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Hope someone asks about the impact (if any) on future EVAs (3?) of not getting all the LOCKs work done.
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Q: Any chance to analyze video that crew shot?
A: Only seen cold/dark side of telescope. Most degradation occurs on sun side. Dark side looks pretty much as expected, no indication of great additional degradation. Won't know what other side looks like for a few days, until servicing moves over there. Will do extensive photo survey, only done on cold side so far.
Q: How much of Massimino will be in Hubble?
A: Pretty much all of him. He'll be leaning, his back underneath rate sensor units. Will reach up and grab. White dot in picture is where foot restraint is installed.
Q: How much clearance?
A: He will be making physical contact. "Wedge" himself in place.
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Characterizing Hubble (as something I can't have a hope in hell of spelling) teenager (you'll get to hear that via John 44's video!)
Praising the successful launch of two telescopes via Ariane 5 ECA today.
http://en.wiktionary.org/wiki/recalcitrant
marked by a stubborn unwillingness to obey figures of authority
hard to deal with or operate
;)
Winner! :D
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Questions from Goddard.
Q: EVA was an hour longer than expected. Worried about exhaustion?
A: Surgeon talks to crew before and after EVAs, good understanding of how they feel. Contigency plans in place to swap crews if necessary. Scooter is good at figuring out how they're feeling.
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From HQ:
Q: Talk about "trajectory" of EVAs.
A: We went over a "speed bump we didn't know was there". EVA 3 will be the big one. Only one approach to get everything done. Each EVA has its own challenges. We have "top-notch A-Team" up there.
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Q: What went wrong with latches?
A: Concern was that a shim could not be put in. Had to release bolt to relieve tension. Didn't fit. Installed another one. Concern was that gap would prevent doors from closing.
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Hope someone asks about the impact (if any) on future EVAs (3?) of not getting all the LOCKs work done.
Rob Pearlman must have read this! :)
ETA: No impact, just a get ahead.
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Q: How long will scan take?
Tony: Timelined for 45 minutes in the morning, parallel with EVA prep.
Q: Gyro ops delicate or strenuous?
A: Delicate, not strenuous.
Q: If one LOCK cannot be done, big impact on EVA 3?
A: Only a get-ahead, doesn't really impact EVA 3 objectives.
Q: Target picked for WFC-3 first image?
A: "Yes, and I'm not gonna tell you." ;) (A bit more detailed than that, but I like that answer better). Prelim date around Sept. 9. Nice variety of galaxies and nebulae to choose from.
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Hope someone asks about the impact (if any) on future EVAs (3?) of not getting all the LOCKs work done.
Rob Pearlman must have read this! :)
ETA: No impact, just a get ahead.
Just to expand, the critical task was breaking the torque (again!) on the door bolts to allow access on EVA3. The problem with the new latch merely changes what bolt they will drive.
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Just to expand, the critical task was breaking the torque (again!) on the door bolts to allow access on EVA3. The problem with the new latch merely changes what bolt they will drive.
IIRC, the first surprise on SM-1 was that the aft-shroud doors would not close in the middle of EVA-1. Presumably the LOCKS would have saved some EVA time dealing with both opening and closing the doors.
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Some video being downloaded
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Just to expand, the critical task was breaking the torque (again!) on the door bolts to allow access on EVA3. The problem with the new latch merely changes what bolt they will drive.
IIRC, the first surprise on SM-1 was that the aft-shroud doors would not close in the middle of EVA-1. Presumably the LOCKS would have saved some EVA time dealing with both opening and closing the doors.
I have that on VHS somewhere. It was Story Musgrave who first noticed it. It was the first time I had ever seen contemporary footage of a shuttle flight.
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I have the entire SM-1 on VHS. Yeah, I'm a junkie.
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Ive a whole lot of SM-1 on dvd,after I finally got round to editing it off of vhs,
mostly CNN(i) stuff,
My old video broke it was that hot at the end of the EVA'S (lol)
Great coverage of the flight so far everyone :-)
JJ..
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I have the entire SM-1 on VHS.
Who doesn't? :P
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Disabled chargers for EVA, burning rubber smell.
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Battery Chargers for EVA btw.
CSACP readings being taken.
CSACP=Compound Specific Analyzer Combustion Product
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Isolating it via nose-detection. Discussing if cooling fan was off or blocked. Astronauts do not believe airflow was blocked.
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Battery Charger for EVA SN#21 will be decommissioned and crew moving to backup charger.
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This never gets old...
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This never gets old...
Ain't that the truth.
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Atlantis in front of the sun through a telescope:
http://www.flickr.com/photos/nasahqphoto/3531410425/in/set-72157617823159021/
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well that is certainly impressive... :)
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This one is doing the rounds inside ESA/NASA.
Originated here: http://legault.club.fr/atlantis_hst_transit.html
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What the hell? Where was that taken from and with what equipment? Are we sure it's 125?
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What the hell? Where was that taken from and with what equipment? Are we sure it's 125?
That's all I have, taken on the 12th of May said to be Atlantis/STS-125
Must be somebody playing with some big lenses/filters....
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Impressive, must have been from a Solar monitoring sat maybe?
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Crazy!
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I thought it might of been a trick of the light, but the image file says "Sun" so that is very clever!
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What the hell? Where was that taken from and with what equipment? Are we sure it's 125?
You may think it is extraordinary but the picture is not uniq by any means.
ISS was caught (http://www.spaceweather.com/archive.php?view=1&day=19&month=11&year=2008) in a similar way in front of the Moon in 2008
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Okay, it may not be that extraordinary, but to me it looks really amazing. Must be quite challenging to get it with a transit time below one second.
Some remarks from Thierry Legault's (http://www.astrophoto.fr/) site:
Only image ever taken of a transit of a space shuttle (Atlantis) and the Hubble Space Telescope (HST) in front of the Sun, during the last repair mission of Hubble, obtained from Florida at 100 km south of the Kennedy Space Center on May 13th 2009 12:17 local time, several minutes before grapple of Hubble by Atlantis.
Transit duration: 0.8s. Transit bandwidth on Earth: 5.6 km. Altitude: 600 km. Speed: 7 km/s (25000 km/h). Length of Atlantis : 35m, length of Hubble : 13m.
Transit forecast (place, time...) calculated by www.calsky.com.
Takahashi TOA-130 refractor (diameter 130mm, final focal 2200mm), Baader solar prism and Canon 5D mark II. Exposure of 1/8000s at 100 ISO, extracted from a series of 16 images (4 images/s) started 2s before the predicted time.
Initially I found these images on Flickr (http://www.flickr.com/photos/nasahqphoto/) and then I realized it had been posted here already.
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The second image "3531350583_9d341d9f2a_o.jpg" posted by Ronsmytheiii - is that the Hubble during the approach? or a very timely placed sun spot?
Reguardless - greet images. They will go well with the ISS sun pass captured not all that long ago
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The second image "3531350583_9d341d9f2a_o.jpg" posted by Ronsmytheiii - is that the Hubble during the approach? or a very timely placed sun spot?
It's on front page of Spaceweather.com - Atlantis + HST during rendezvous and capture.