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#100
by
Chris Bergin
on 15 May, 2009 14:20
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Mass helmetcam looking at Good from INSIDE Hubble!
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#101
by
Chris Bergin
on 15 May, 2009 14:24
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GoodCam removing the first of three bolts. You can see Mass tucked up inside Hubble.
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#102
by
Chris Bergin
on 15 May, 2009 14:26
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#103
by
Chris Bergin
on 15 May, 2009 14:28
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#104
by
Chris Bergin
on 15 May, 2009 14:33
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Good passing new RSU to Mass. Unit in good condition, not FOD etc.
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#105
by
Chris Bergin
on 15 May, 2009 14:34
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#106
by
Chris Bergin
on 15 May, 2009 14:37
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New RSU installed. Only required two bolts.
Mass mating electrical connections.
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#107
by
Chris Bergin
on 15 May, 2009 14:40
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Here's the RSU task overview via the Flight Plan Walkthrough Presentation:
RSU R&R: The RSU changeout procedure is the same for each RSU. IV rotates the
BAPS to the RSU changeout position. The Fixed Head Star Tracker (FHST) shutters
are verified closed from the standard switch panel and the RSU is deactivated. The
ground handles most of the RSU commands. EV3 is going to use a PFR, so he
retrieves it from the Axial Scientific Instrument Protection Enclosure (ASIPE). EV3
and EV4 head over to the SMALL ORU Protective Enclosure (SOPE) on the ORUC
where the RSU’s are stowed, retrieve RSU-2, and transport it (in a thermally
protective bag) to the –V3 aft shroud. While EV4 is holding the door handles, the
RMS backsaway to open the doors. They then begin performing the RSU-2 R&R.
EV3 disconnects RSU power connectors, while EV4 disengages three captive bolts.
EV3 removes the old RSU-2 and hands it off to EV4 who temp stows it on the top of
MFR handle. EV4 then seats the new RSU (RSU-2R) and engages the bolts, while
EV3 mates the connectors. HST performs an aliveness test. The EV crew return to
the SOPE to stow the old RSU-2 and retrieve the new RSU-3. The R&R procedure
is then repeated for RSU-3 and then RSU-1. After all three RSU’s are replaced, the
–V3 doors are closed. Sun protect attitudes are no longer required at this point. EV3
returns his PFR to the ASIPE.
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#108
by
Chris Bergin
on 15 May, 2009 14:42
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9:40am Central, mating of the connectors marks the full installation of the new RSU. Will be tested very shortly - in fact the liveness test is going to be conducted right now according to Kyle.
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#109
by
Chris Bergin
on 15 May, 2009 14:43
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RSU 2 installation to be followed by RSU 3 installation.
Atlantis on her 60th orbit of the planet on 125.
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#110
by
Chris Bergin
on 15 May, 2009 14:44
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Good helping Mass out of the telescope.
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#111
by
NYC777
on 15 May, 2009 14:45
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Are they running ahead of the timeline?
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#112
by
Chris Bergin
on 15 May, 2009 14:46
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Good's been shopping, picked up an old RSU and a spacewalker.
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#113
by
Chris Bergin
on 15 May, 2009 14:48
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Good liveness test on the new RSU 2 and go for RSU 3. Good taking Mass to the SOAP.
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#114
by
stockman
on 15 May, 2009 14:49
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can't do too much... but will add as I have time
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#115
by
Chris Bergin
on 15 May, 2009 14:49
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#116
by
stockman
on 15 May, 2009 14:50
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#117
by
Chris Bergin
on 15 May, 2009 14:53
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Are they running ahead of the timeline?
They were a bit behind with the door that wanted to spring shut, but the first RSU changeout went well.
Kyle's not mentioned if they are on the timeline yet.
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#118
by
stockman
on 15 May, 2009 14:53
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Some real nice pictures on this spacewalk...
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#119
by
Chris Bergin
on 15 May, 2009 14:55
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At the SOAP, stowing the old RSU for it's ride home, will be picking up the next RSU (RSU 3) for installation.