WEEKLY HIGHLIGHTS FOR WEEK ENDING 23 January 1998:
STANFORD HIGHLIGHT
Both engineering unit Detector Package Assemblies (DPA #5
and DPA #6) are
now functioning and installed on Telescope
#3. Subsequent optical tests
demonstrate that the centering
between each post knife edge beam and the
corresponding
photodetector is good.
SPACE
VEHICLE HIGHLIGHT
On Wednesday, January 14, 1998, in the building 205 hi-bay,
the first
command was successfully sent to the Gravity Probe
B (GP-B) flight Power
Distribution Unit (PDU). This initiated
Spacecraft Power On Testing.
This testing successfully verified
proper polarity and voltage levels at
the connectors to the primary
and secondary power inputs of the flight
computer, the Command and
Telemetry Unit (CTU), the Interface Unit (IU),
the Solid State
Recorder (SSR), the Star Sensors, and Transponder.