Mark Hess
Headquarters, Washington, D.C.                      March 9, 1990
(Phone:  202/453-4164)                                   Noon EST

Ed Campion
Headquarters, Washington, D.C.
(Phone:  202/453-8536)


RELEASE:  90-37

NASA REVISES SPACE SHUTTLE MANIFEST


     NASA has revised its January 1990 Space Shuttle Manifest, 
changing the planned launch dates for several NASA, international 
and Department of Defense (DOD) payloads.

     Most of the changes to the manifest were a result of 
advancing the DOD's mixed cargo flight -- the Infrared Background 
Signature Survey/Air Force Program-675/Space Test 
Program/Multi-Purpose Experiment Canister (STS-51) -- from 
January 1992 to January 1991.  The mission will be renamed 
STS-39.  The payload previously in the January 1991 slot, 
Tracking and Data Relay Satellite-E (STS-43), has been moved to 
May 1991.

     STS-46, a NASA mixed cargo mission including the first 
flight of the NASA/Italian Space Agency's Tethered Satellite 
System, the European Space Agency's European Retrievable Carrier, 
the Evaluation of Oxygen Interaction with Materials and the 
Two-Phased Experiment Mounting Plate, was moved from May 1991 to 
September 1991.  DOD's STARLAB mission, scheduled for September 
1991, has been delayed to January 1992.

     Other manifest changes include the addition of the Shuttle 
Solar Backscatter Ultra-Violet Instrument payload (SSBUV) to both 
the Ulysses and TDRS-E missions.  SSBUV has been removed from 
STS-37, scheduled for November 1, 1990, aboard Atlantis, which 
will deploy the Gamma Ray Observatory into orbit.  Also, the 
Space Radar Laboratory series of missions has been delayed about 
one year.

     Additional changes to the Mixed Fleet Manifest beyond the 
January 1992 launch of STARLAB are under review.  NASA plans to 
issue a new manifest in June.
                            - end -


TO:  MDS/PRA Group
     1615 L Street, N.W. - Suite 100
     Washington, D.C. 20036

DATE & TIME:  FRIDAY, MARCH 9, 1990.  10:45 AM

ORDERED BY:  Edward Campion
NASA Headquarters/LMD
400 Maryland Avenue, SW
Washington, DC 20546             PHONE:  202/453-8400

PROJECT TITLE:  Release No:  90-37

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