WEEKLY HIGHLIGHTS FOR WEEK ENDING 12 September 1997:
STANFORD
HIGHLIGHT
Dr. Gregory Gutt and his team have shown that the GTU-2 SQUID remains flux
locked when the Gyroscope Suspension System (GSS) bridge is operated.
(Note
that the SQUID noise reduction to Science Mission levels is still
in
progress in GTU-2.) This preliminary result is the first stage in
demonstrating the compatibility of the gyroscope readout system and the
GSS.
A SQUID signal at the bridge frequency was obtained, as expected,
by
increasing the bridge excitation to 400mV. A final stage of the system
compatibility testing will take place with the SQUIDs functioning at Science
Mission specifications.
SPACE VEHICLE HIGHLIGHT
The Experiment Control Unit (ECU) Test Set, consisting of
the ECU
engineering unit and three Sun Ultra workstations
with flight and ground
system software installed, was
delivered to Stanford Tuesday September
2nd. Following
installation and checkout the ECU was connected to
temperature sensors in the flight dewar and temperature
data was read
from the sensors in the dewar by the ECU.
This data was read from the
ECU by the flight software
and transmitted to the ground system software
where it was
extracted from the telemetry stream, displayed and
archived.
This is a major milestone as it is the first time data
from
Relativity Mission flight hardware has been read by
flight software and
transmitted to ground system software.