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Subject: SLS-2 Status Report
Date: 28 Jul 1993 17:31:33 -0400
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Posted: Wed, Jul 28, 1993   4:34 PM EDT              Msg: JJJD-1546-5977/20
From:   (SN:YOUNG,FN:DICK, SITE:NASAMAIL) 
To:     (O:CCMAIL,OU:JPLPOST,SN:PAOLOOP, SITE:JPL), 
        (SN:FINLEY,FN:GEORGE,I:D, SITE:NASAMAIL), 
        (UN:P, SITE:NASAMAIL), 
        (UN:PAOLOOP.NASAMAIL, SITE:NASAMAIL), 
        (UN:PF, SITE:NASAMAIL), 
        (ID:<paoloop(a)jplpost.jpl.nasa.gov>, SITE:SMTPMAIL), 
        JRUFF/GSFCMAIL, PUBINFO/GSFCMAIL
Subj:   SLS-2 STATUS REPORT 








                                PAYLOAD STATUS REPORT
                                    STS-58/SLS-2

                                   July 28, 1993

          George Diller
          Kennedy Space Center
          407/867-2468

               The primary payload for mission STS-58, the Spacelab Life
          Sciences 2 (SLS-2) laboratory module, passed a processing
          milestone today with the completion of the Interface Verification
          Test (IVT) verifying electrical and mechanical connections
          between the Spacelab module and the Spacelab tunnel. The tunnel,
          which provides astronaut access between the orbiter mid-deck and
          the module itself, contains lights and air-handling equipment for
          the Spacelab.  It was installed into Columbia's payload bay July
          24-25.

               Also successfully completed was an end-to-end test to verify
          communications capability between the laboratory in Columbia's
          payload bay and the Johnson Space Center in Houston.  Columbia
          and SLS-2 are in Bay 2 of the Orbiter Processing Facility at KSC.
          The laboratory module was installed into Columbia on July 15 and
          these connections were also verified with an IVT on July 20-22.

               Next, limited-lifetime experiment lockers were installed
          within the SLS-2 laboratory on July 22-23.  The most
          time-critical of the experiments will be installed at the pad
          during launch countdown.

               After the experiment lockers were installed in the OPF, the
          Spacelab tunnel installation followed last weekend on July 24-25.

               Columbia is targeted to move to the Vehicle Assembly
          Building on Aug. 15 and roll out to Launch Pad 39-B about a week
          later.  Once at the pad, ground support equipment used in
          experiment activation will be installed inside the Spacelab
          module.  The actual SLS-2 activation occurs at the beginning of
          the STS-58 launch countdown.

               The SLS-2 mission, like its predecessor, SLS-1, is dedicated
          to life sciences research related to the future health, safety
          and productivity of humans in space.

               SLS-2 will re-fly many of the SLS-1 investigations to enable
          scientists to draw more definitive and statistically significant
          conclusions.  Fourteen coordinated and complementary experiments
          will focus on the physiological mechanisms involved in the
          adaptation to microgravity and readaptation to normal Earth
          gravity.  The STS-58/SLS-2 mission is targeted for launch the
          second week of September.

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