Oct_22_1999 Shift M91 Start at 1999:295:20:14:00 GMT End 295:22:00:00 GMT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Oct_22_1999_M91.txt. SOT Lead Ed Kellogg SOT FP FOT-SI HRC-SI Jerry Austin ACIS-SI OTHER Plan: - Running P22e load. Run CAP 490 to turn on HRC-I HV power supply in preparation for running HRC-I. EVENTS DONE OBSID -------------- ---- ----- Start Shift, LOS 2014 AOS 2120 Complete CAP 490 2140 Check OBSID 2143 515 NOTES/ISSUES/PROBLEMS --------------------- ACA sees 3 fids, 4 stars; observation is Abell 370, ACIS-I. Gratings are out. CAP 490 was run because HRC-I HV was shut off on day 278, so to prepare for an observation, it was necessary to activate the HV supply by ground command. From ACIS telecon ----------------- Mark Bautz reported that there appears to be a way to mitigate the problem with FEP0 clogging the telemetry, by changing software. The fix is being worked. From the chandra snapshot ------------------------- UTC 1999:295:21:52:01 (Fri Oct 22) OBT 1999:295:21:51:29 CTUVCDU 8636927 FMT2_SSR OBC s/w NRML OBC Errs 0 OBT 57016289.33 ONLVCDU 8636920 OBSID 515 EPState SUN SIM TTpos 75624 HETG Angle 81.0 PCADMODE NPNT RA 40.008 Bus V 30.24 SIM FApos -467 LETG Angle 81.3 PCONTROL NPNT Dec -1.602 Bus I 34.82 AOFSTAR GUID Roll 47.677 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTNTT Dith Yang 7.87 Yaw Rate -0.00 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 5.06 Pitch Rate -0.01 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.02 Door OP UNAC AOACSTAT OK FSS SunAlfa NSUN Door CL UNAC FSS Alfa -49.57 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -49.78 Batt 2 SOC 100.00% Avg OBA Temp 50.34 SA Resolv 161.66 Batt 3 SOC 100.00% ACIS Stat7-0 65 OBA Tavg Fault NFLT SA Sun Pres ILLM Cold Rad -120.7 OBA Trng Fault NFLT Warm Rad -82.0 HRMA power 111.40 OBA power 123.40 EPHIN Geom LARG INT cnt 128 Roll Mom. 2.114 P41GM cnt 0 Pitch Mom. 3.534 A-Leak 0.2080 Yaw Mom. 17.672 B-Leak 0.0320