WEEKLY HIGHLIGHTS FOR WEEK ENDING 8 NOVEMBER 2002:
SPACE VEHICLE READY FOR THERMAL VACUUM TEST
The GP-B space vehicle is electrically, mechanically, and thermally prepared for the upcoming thermal vacuum test. During the past week the final blankets and FOSR were installed. The replacement transponder, serial number 103, successfully completed functional checkout on the vehicle.
Photo: The GP-B Space Vehicle
ROOT CAUSE FOUND FOR ECU THERMAL ANOMALY
The root cause for the ECU thermal anomaly was lack of the 10 Hz timing signal. This lack of signal occurred in B side tests when the ECU was powered prior to the SRE. ECU tests with this incorrect command sequence are in-rework. The plan is to rerun the fixed command sequences within the next few days.