yee@ames.arc.nasa.gov (Peter E. Yee) (02/10/89)
KSC Weekly Payload Status Report
February 9, 1989
George Diller
TDRS-D/IUS-9 (Discovery/STS-29)
Ordnance installation on the Inertial Upper Stage was
completed on Jan. 31. These ordnances are used for the
separation of the IUS first and second stages and for spacecraft
separation.
An attempt was made to install IUS/TDRS into Discovery's
payload bay on Saturday, Feb. 4. However, the transfer operation
was terminated after impending interference was observed between
the Space Station heat pipe experiment (SHARE) and the payload
ground handling mechanism J-hooks holding the IUS/TDRS
spacecraft. The heat pipe is designed to move out of the way for
payload installation, but failed to provide sufficient clearance
by about two inches. By removal of some bolts that hold stops up
against which the heat pipe rotates for clearance, an additional
ten degrees of rotation could be achieved, providing the
necessary clearance. The payload operation was re-initiated on
Monday morning, Feb. 6, and IUS/TDRS was installed in the payload
bay without difficulty by 3:00 p.m.
Two signficant tests remain to be performed. The Interface
Verification Test (IVT) is scheduled for Feb. 15 and the End-to-
End test (ETE) is scheduled for Feb. 17.
Magellan/IUS-18 (Atlantis/STS-30)
Functional testing of Magellan's radar, flight
instrumentation, and the liquid propulsion module has been
completed. All remaining tests are associated with configuring
the spacecraft for launch.
The solar panels were re-attached for flight on Friday, Feb.
3 and over the weekend were tested by illumination with electric
lights. Mechancial tests of the solar panels were completed on
Tuesday, Feb. 7.
The Inertial Upper Stage is scheduled to be delivered from
Cape Canaveral Air Force Station on to the Vertical Processing
Facility at KSC on Monday, February 13.
The spacecraft is scheduled to be hoisted onto a transport
trailer over the weekend. It will be moved to the Vertical
Processing Facility on Wednesday, Feb. 15 for mating to the IUS.