SOT shift report 2000-09-28 M434 Start at 2000:272:19:30 GMT = 2000 Sept. 28 03:30pm EDT End 05:30pm EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Sept_28_2000_M434.txt SOT Lead Robert Cameron Plan: ---- Seq # ObsID Target start SI Grat RA dec roll ------------------------------------------------------------------------------------------ 300000 00075 RX J0019.8+2156 2000:272:10:20:42.944 HRC-S LETG 4.9791 21.9641 180.28 ---- 61900 CAL-ER 2000:273:01:11:06.364 -- -- 20.3600 23.2200 143.40 ---- 61899 CAL-ER 2000:273:13:25:51.838 -- -- 20.3600 23.2200 144.11 EVENTS GMT OBSID ------ ---- ----- AOS DSS-66 (Madrid 26m) 2010 75 LOS DSS-66 (Madrid 26m) 2110 Orbital Events: -------------- 2000:272:01:24:46.327 158 EAPOGEE ORBIT APOGEE 2000:273:09:08:21.466 158 EPERIGEE ORBIT PERIGEE 2000:274:16:51:48.585 159 EAPOGEE ORBIT APOGEE 2000:276:00:34:51.878 159 EPERIGEE ORBIT PERIGEE 2000:277:08:18:48.989 160 EAPOGEE ORBIT APOGEE 2000:278:16:02:35.176 160 EPERIGEE ORBIT PERIGEE NOTES/ISSUES/PROBLEMS --------------------- The Target of Opportunity (TOO) Gamma Ray Burst x-ray source GRB00926 will be observed after the upcoming perigee passage. Command load products are currently in the review stage. The decision to retract the LETG or not for the TOO will be made later tonight after analysis of early data from Beppo-SAX. Since the LETG retraction (and later insertion) are ground-controlled realtime operations, this decision can be deferred, although at the cost of schedule inefficiency due to the reserved time in the schedule for possible LETG operations. LETG ops CAP review will be held in conjunction with the load review at 6:30pm EDT. If LETG ops are required, FOT and SOT personnel should be on console at 2am EDT. Chandra snapshot ---------------- UTC 2000:272:20:26:01 (Sep28) f_ACE 6.55e+02 F_ACE 0.00e+00 Kp 2.3 R km 104406D OBT 2000:272:20:25:39 CTUVCDU 8343794 OBC s/w NRML FMT1_SSR CPEstat NORM OBT 86559939.89 ONLVCDU 8343784 OBC Errs 0 OBSID 75 EPState SUN SIM TTpos -99616 HETG Angle 79.8 PCADMODE NPNT RA 4.983 Bus V 30.08 SIM FApos -990 LETG Angle 4.5 PCONTROL NPNT Dec 21.960 Bus I 36.85 AOFSTAR GUID Roll 180.274 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -11.57 Yaw Rate -0.04 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -15.90 Pitch Rate -0.06 OBSMode OBSV ACA Int Time 1.698 Roll Rate 0.12 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -49.63 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -49.77 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 50.50 SA Resolv 160.41 Batt 3 SOC 100.00% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 17.82 RADMON ENAB HRMA power 79.00 SCS 128 ACT -Y SA Amps 18.60 EPHIN Geom LARG OBA power 115.00 SCS 129 ACT +Y SA Temp 112.04 E150 7.9 SCS 130 ACT -Y SA Temp 112.35 E300 0.1 Roll Mom. 0.728 E1300 0.0 Pitch Mom. -1.073 UpL Cmd Acc 39376 EPH A-Leak 0.2720 P4GM 0.0 Yaw Mom. 1.352 Cmd Rej A 170 EPH B-Leak 0.0520 P41GM 0.0 2) Status at 272:2020: Observed Expected -------- -------- PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 4.9791 deg 4.9791 DEC = 21.9641 deg 21.9641 ROLL = 180.28 deg 180.28 Format = 1 1 OBSID = 75 75 SIM FA = -990 -991 SIM TSC = -99616 -99616 HETGA = 79.84 deg (OUT) OUT HETGB = 80.59 deg (OUT) OUT LETGA = 7.46 deg (IN) IN LETGB = 4.46 deg (IN) IN HRC IM PS = OFF, 0, 0 SP PS = ON, 90, 102 Shield 1 HV = OFF, 0 Shield 2 HV = ON, 8 Valid Event Rate 1 = 63 Valid Event Rate 2 = 67 Shield Event Rates = 3000 ACIS FP Temp = -119.9 DEA Pwr = 48.4 DPA Pwr = 40.3 Science State = Science Active Radiation --------- Radiation levels are ok. ACE 2hr fluence is 5.7e6 vs. threshold 3.6e8. Orbital fluence is 0.0e0 vs. threshold 1.0e9. Evaluation of QL data --------------------- There are no new quick look data on this shift.