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From: baalke@mars.jpl.nasa.gov (Ron Baalke)
Newsgroups: sci.space,sci.space.shuttle
Subject: Galileo Update
Message-ID: <1875@jato.Jpl.Nasa.Gov>
Date: 9 Oct 89 17:21:37 GMT
Sender: news@jato.Jpl.Nasa.Gov
Reply-To: baalke@mars.jpl.nasa.gov (Ron Baalke)
Distribution: usa
Organization: Jet Propulsion Laboratory, Pasadena, CA.
Lines: 86


                    GALILEO DAILY REPORT
                         6 OCTOBER 1989
 
                             General
 
Spacecraft
 
     CDS memory loading on logic power was completed
successfully on 3 and 4 October.
     On 4 October, the spacecraft was turned on so as to be able
to verify L-20 min discrete from the IUS after the changeout of
the IUS computer A.
     In addition, both the spacecraft and the IUS performed
stray voltage tests to the spacecraft to insure the super zip
detonator block connector pins have no voltage while the
spacecraft and the IUS is on.
     In the early morning of 5 October, the super zip detonator
block firing cables were connected to the spacecraft and FTK
checks were performed thus completing all of the spacecraft
pryotechnic preflight activities.
     In the early morning of 6 October, closeout operations were
performed; PWS dipole antennas were installed, the science purge
was transferred to the T-0 source via the 4 way valve.  The
cabling to the spacecraft from the support equipment simulated
RTG power supply was disconnected and the final spacecraft
cleanliness inspection and cleaning was performed.  The only
remaining mechanical activity is the disconnection and capping
of the carry-on umbilicals, and the installation of the related
thermal blanket.
 
LCET
 
     LCET #1 CDS ground support computer was exercised to assure
that spacecraft memory loading was functioning; memory loading
by the computer was successful.
 
RTG Cooling Loop
 
     Vacuum drying of the payload portion of the cooling loop is
still on-going; results to date indicate that the "dry"
specifications will be satisfied prior to servicing the loop
with water/alcohol.
 
STS
 
     IUS:  On 4 October, the IUS went into their ordnance
operations at the completion of the computer A replacement and
retest.  The ordnance operations were reported as having been
completed satisfactorily.
 
               Schedule Discussion and Assessment
 
     As discussed in the report of 4 October, a new payload
schedule has been issued.  The highlights of the schedule are as
follows:
 
4 Oct-5 Oct                  IUS/GLL closeout operations
 
6 Oct            0800-1600   RTG preparations for transfer to Pad
 
                 1000-1400   Payload contamination inspection and
                             cleaning
 
6 Oct-7 Oct      1600-0200   Reconfigure PGHM for RTG operations
 
7 Oct            0200-0500   JPL Launch Complex 39-B preparations
                             for RTG operations
 
                 1700-1900   Transport RTGs to Pad B
 
7 Oct-8 Oct      1900-0700   Install RTGs in spacecraft and
                             air bath operations
 
8 Oct            0400-1600   Galileo Launch Conditioning
 
                 0600-2100   RTG Coolant Servicing Functional
                             Test
 
9 Oct            0400-0600   Disconnect Galileo carry-on
                             umbilicals and final closeout
 
9 Oct            0800        Launch Countdown start  L-76 hr
 
                                                     T-43 hr