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From: starrfie@hydro.la.asu.edu (Sumner Starrfield)
Subject: HST Report (fwd)
Date: Tue, 7 Dec 93 7:55:45 MST
nova@nova.la.asu.edu (nova list)
Forwarded message:
>From wms@stsci.edu Tue Dec 7 07:53:22 1993
Date: Tue, 7 Dec 93 10:00:07 EST
From: Robert Williams <wms@stsci.edu>
Message-ID: <vsnet-history1860@hoge.baba.hajime.jp>
To: starrfie@hydro.la.asu.edu
Subject: HST Report
>From DOXSEY@avion.stsci.edu Tue Dec 7 07:44:53 1993
Subject: HST has a new camera and two new magnetometers !!
To: wms@stsci.edu, elt@astrovax.princeton.edu, grepass@gsfcmail.nasa.gov,
GILLIL@stsci.edu, weaver@stsci.edu, mcgrath@stsci.edu,
storrs@stsci.edu, ~saha@avion.stsci.edu, mackenty@stsci.edu,
~library@avion.stsci.edu, rjallen@stsci.edu, LONG@stsci.edu,
sbaum@stsci.edu, ford@stsci.edu, SESD@avion.stsci.edu
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SM Report #6
7:30 AM December 7 341:12:30
Summary of recent activities:
EVA 3 has gone extremely well. The EVA crew
today was Story Musgrave and Jeff Hoffman. They
had no difficulty at all removing the WFPC from
the HST. They stored it temporarily and then
removed the WFPC-II from the radial carrier.
They carefully removed the protective cover from
the pick-off mirror and easily slid the WFPC-II
into the HST. The latch and blind mate connector
operated as planned. The STOCC ran a quick
aliveness test which verified that the power and
data connections between HST and WFPC-II were
good. The EVA crew then stowed the old WFPC
in the radial carrier and sealed it up.
The next task was the installation of the new magnetometer
units up at the front end of the telescope near the
aperture door. The first magnetometer was installed
and tested ok. The second magnetometer was then
installed and tested ok. During the installation
of MSS #2 some pieces came off the old MSS #2.
It is not clear what pieces they are,
the crew brought them inside the cabin at the
end of the EVA. They may return to MSS #2 in
a later EVA to wrap up the old MSS #2 completely
so no further pieces can come off.
The EVA crew then finished up with several minor
preparatory tasks for the next two EVAs.
The WFPC-II functional test was then started. This
test exercises more of the WFPC-II capabilities than
the aliveness test, including the taking and downlinking
of 3 internal WFPC-II CCD frames. The three images have
come down and been inspected by the IDT and they look
perfect. The filter wheel mechanism and shutters work
fine. The only remaining step in the functional test
is to dump and verify the microprocessor memory.
Problems/Issues/Changes under consideration:
The contamination and shuttle experts are still looking into
pressure increases seen during the solar array jettison
yesterday. They believe that there is no reason
to be concerned with contamination of the HST.
A contingency plan will probably be developed for a
return to MSS #2 to be sure nothing else will come loose
and float around. The two pieces have now been identified
as label plates which had been glued to the magnetometer.
It looks like either they were poorly glued or the glue
has degraded over three years.
Near-term plans:
The plans for tommorrow are to proceed with EVA #4 and
install COSTAR and the Co-processor.
Return to the Daisaku Nogami
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