SOT shift report 2000-11-13 L480 Start at 2000:318:12:08 GMT = 2000 Nov. 13 08:08am EST End 12:10pm EST See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Nov_13_2000_L480.txt SOT Lead Ed Kellogg Plan: ---- Doing CAP 674, Cuckoo mode on ACIS S0. then Z ANDROMEDAE 2000:318:15:19 19.1 ACIS-S HETG, CAL-ER 2000:318:21:11 HYDRA A 2000:318:21:41 9.6 ACIS-S HETG *week of* 13 Nov run dark current - RAC, TLA EVENTS GMT OBSID -------------- ---- ----- 0 fids, 8 stars 1318 62872 Finish CAP 674, conclude support 1444 Notes from 9 am meeting ------------------------ OPS: Passes 7 over the last 2 days SSR dumps 7 Data loss none Load is good -> ? CAPs 329 on Fri - momentum dump 674 now, ACIS cuckoo next passes 2125, 0315 MP: Intercept load was built Friday, worked on Saturday, sent up & used thru Sunday evening. We did the HETG observation on the descending leg. All very good work. S/C: S/C: The recent weird ACIS TLM seen during last week's radiation event was similar to that experienced during last July's radiation storm. GOT: - SOT: Radiation low. ASCDS: Having a problem with OBSID 2070 - many aspect intervals. A successful outcome is predicted. Data ---- On colossus at 1323 GMT.(/dsops/GOT/input), - Nov 13 05:42 2000_317_1328_318_0500_Dump_EM_42673.gz Evaluation of QL data --------------------- The following OBSIDs should be available for review. No comment after the entry means the QL image has not been distributed yet to SOT. OBSID Target Time SI SOT Eval. ----- ------ ----------- -- ------- ( no new QL today) NOTES/ISSUES/PROBLEMS --------------------- ACE 2 hr fluence is 1.4e6 vs. threshold 3.6e8. *ACIS* Orbital fluence (since perigee)is 0.0e0 vs. threshold 1.0e9. ACIS focal plane temperature -119.2 at 08:24 EDT. Note on discussion this morning with Ed Boughan about recent ACIS "DPA-A" anomaly. The digital readout of power supply status for the PSMC (Power Supply/Mechanism Converter) in ACIS read anomalous values six times, i.e. during six major frames. These were not contiguous, so it was six different occurences. The bits indicated that various power supplies were in the wrong state. However, examination of the analog TLM readouts for the supplies indicated voltage values that were OK. It looks like the bits in the digital serial register were shifted by one. We don't know yet whether it picked up an extra bit or lost one. Chandra's state was: --------------------- UTC 2000:318:13:26:01 (Nov13) f_ACE 1.73e+02 F_ACE 0.00e+00 Kp 2.0 R km 62549A OBT 2000:318:13:25:28 CTUVCDU 6978047 OBC s/w NRML FMT2_EPS CPEstat NORM OBT 90509128.83 ONLVCDU 6978032 OBC Errs 0 OBSID 62872 EPState SUN SIM TTpos -99616 HETG Angle 6.34 PCADMODE NPNT RA 356.338 Bus V 30.08 SIM FApos -467 LETG Angle 78.34 PCONTROL NPNT Dec -59.488 Bus I 33.30 AOFSTAR GUID Roll 310.912 ACA Object SSSSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -7.24 Yaw Rate -0.14 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -2.20 Pitch Rate -0.01 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.10 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.36 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -1.66 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.13 SA Resolv 91.50 Batt 3 SOC 100.00% Cold Rad -125.5 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 15.85 RADMON DISA HRMA power 32.70 SCS 128 ACT -Y SA Amps 16.84 EPHIN Geom LARG OBA power 102.50 SCS 129 ACT +Y SA Temp 115.49 E150 12144.4 SCS 130 ACT -Y SA Temp 115.49 E300 290.5 Roll Mom. 0.078 E1300 1.1 Pitch Mom. -10.586 UpL Cmd Acc 50128 EPH A-Leak 1.0200 P4GM 15.7 Yaw Mom. -2.872 Cmd Rej A 211 EPH B-Leak 0.2280 P41GM 0.3