Instrument Delivery and Calibration Status Update for PFP Instruments, Excluding SWEA
All PFP instruments, excluding SWEA, have been delivered, integrated, and successfully tested, including environmental tests. Major fixes included re-shimming EUV alignment shims and addressing temperature sensor noise issues. The SEP heater noise plan includes shielding the heaters. Calibration updates have been applied to temperature monitors. While some operational fixes have been identified for SASM/LPW timing offsets, these await testing on FM. The SWEA instrument was reworked to resolve high voltages and thermal stability issues, showing no problems during recent tests. Calibration is scheduled for next week.
Instrument Delivery and Calibration Status Update for PFP Instruments, Excluding SWEA
E N D
Presentation Transcript
PFP Instrument Status All PFP Instruments Except SWEA have been delivered, integrated, and tested; supporting environmental tests Issues: EUV alignment shims not flat re-shimmed, CLOSED SEP temperature sensor noise Temp sensors relocated; now quiet, CLOSED SEP Heater noise (from TAME) Plan to shield heaters; works on EM, installed on FM this week? MAG temperature monitor offset Monitor temperature calibration updated. Missing Time Update Counter Spacecraft flight software fix planned SASM/LPW timing offset Phase difference identified (on PFP side) Identified an operational fix, which works on EM but has not yet been tested on FM
SWEA Status High Voltage Discharges and instability in Thermal Vac Reworked instrument to stabilize over temperature and reduce the risk of discharges and reduce the risk of damage should a discharge occur Instrument reassembled and in test: Test in calibration chamber with high voltage, no issues Vibrated, no issues Tested again in calibration chamber, no issues In thermal vacuum, no problem with first few cycles High voltage powered on Cycle 5 (2/19) with no problems Post-environmental; calibration next week Pre-Ship Review Friday 3/1; Delivery to LM Monday 3/4, ready for integration after bench test, as soon as the afternoon of 3/5.
