yee@trident.arc.nasa.gov (Peter E. Yee) (02/24/89)
Barbara Selby
Headquarters, Washington, D.C. February 22, 1989
N89-16
NOTE TO EDITORS: NASA ISSUES SECONDARY PAYLOAD FLIGHT PROJECTION
The National Aeronautics and Space Administraton has issued
a Space Shuttle Secondary Payload Flight Projection, the first
publication to highlight secondary payloads. The document
includes all secondary payloads, lists the sponsoring
organizations and indicates where opportunities for secondary
payloads may exist. The Secondary Payload Flight Projection does
not include Expendable Launch Vehicles.
Copies of the document may be obtained from the NASA
Headquarters Newsroom, 400 Maryland Ave., S.W., Washington, D.C.
20546 (phone: XXX/XXX-XXXX).
- end -
ANTICIPATED QUESTIONS FOR RELEASE OF THE SECONDARY
PAYLOAD FLIGHT PROJECTION
Q: How does the Secondary Payload Flight Projection differ from
the Mixed Fleet Manifest issued in January?
A: This is the first publication to highlight secondary
payloads. It includes all secondary payloads, lists the
sponsoring organization and projects where opportunities for
secondary payloads may exist. Included is a request section for
all secondary payloads which also are included in the Acronym
list. The Secondary Payload Flight Projection does not include
ELVs.
Q: Why was the Global Positioning Satellite (GPS-02) deferred
from STS-49 to STS-53?
A: NASA has a Congressional commitment to manifest the Flight
Telerobotics Servicer (FTS-DTF-1) -- a Space Station
demonstration test flight -- in FY 1991. In order to meet this
committment, an opportunity had to be created. The only
compatible flight was STS-49. NASA worked this GPS change with
the DOD.
Q: What happened to the Materials Science Laboratory (MSL-03)
secondary payload listed for flight 49 in the January manifest?
A: When the GPS-02 was moved to STS-53 to accommodate the FTS-
DTF-1, a greater performance margin was created. The MSL-03 was
upgraded to a United States Microgravity Payload (USMP), which is
basically a double MSL, consisting of an MSL and Mission Peculiar
Equipment Support Structure (MPESS) carrier connected together.
Prepared: M-1/Barbara Selby
Source: MC/Bill Green
Approved: MC/Jerry Fitts
February 21, 1989