Aug_31_2001_M771.txt Shift M771 Start at 2001:243:20:00:00 UTC = 2001 Aug 31 4:00pm EDT End 2001 Aug 31 6:00pm EDT SOT shift report 2001-08-31 M771 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_31_2001_M771.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running AUG2701C load. Seq # ObsID It Target start time SI Grat RA dec roll --------------------------------------------------------------------------------------------------- 700382 02192 00 IRAS00317-2142 2001:243:16:39:42.194 20.1 ACIS-S NONE 8.5679 -21.4577 69.11 500134 01957 00 SGR 0526-66 2001:243:22:44:57.240 53.2 ACIS-S NONE 81.5490 -66.0865 103.77 500134 02515 00 SGR 0526-66 2001:244:14:00:11.240 7.0 ACIS-S NONE 81.5487 -66.0867 103.16 ORBITAL EVENTS: 2001:243:05:36:32.851 285 EPERIGEE ORBIT PERIGEE 2001:244:13:19:34.644 286 EAPOGEE ORBIT APOGEE 2001:245:21:03:54.652 286 EPERIGEE ORBIT PERIGEE 2001:247:04:47:22.540 287 EAPOGEE ORBIT APOGEE 2001:248:12:31:02.605 287 EPERIGEE ORBIT PERIGEE 2001:249:20:15:08.366 288 EAPOGEE ORBIT APOGEE 2001:251:03:58:55.814 288 EPERIGEE ORBIT PERIGEE 2001:252:11:43:22.174 289 EAPOGEE ORBIT APOGEE 2001:253:19:27:54.731 289 EPERIGEE ORBIT PERIGEE 2001:255:03:12:04.221 290 EAPOGEE ORBIT APOGEE 2001:256:10:57:22.980 290 EPERIGEE ORBIT PERIGEE 2001:257:18:40:41.693 291 EAPOGEE ORBIT APOGEE 2001:259:02:25:52.442 291 EPERIGEE ORBIT PERIGEE 2001:260:10:08:37.117 292 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 243:2000 AOS DSS-54 (Madrid 34m) 243:2015 2192 LOS DSS-54 (Madrid 34m) 243:2130 End of shift 243:2200 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2001:243:21:10:09 (Aug31) f_ACE 3.50e+02 F_CRM 3.07e+08 Kp 1.7 R km 112084A OBT 2001:243:21:09:45 CTUVCDU 4540136 OBC s/w NRML FMT2_SSR CPEstat NORM OBT 115679385.91 ONLVCDU 4540128 OBC Errs 0 OBSID 2192 EPState SUN SIM TTpos 75624 HETG Angle 79.84 PCADMODE NPNT RA 8.569 Bus V 30.40 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec -21.460 Bus I 29.75 AOFSTAR GUID Roll 69.106 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -6.44 Yaw Rate -0.13 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 8.00 Pitch Rate -0.01 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -42.54 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -49.76 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.73 SA Resolv 149.77 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 14.68 RadMon ENAB HRMA power 46.60 SCS 128 ACT -Y SA Amps 15.07 EPHIN Geom LARG OBA power 133.90 SCS 129 ACT +Y SA Temp 111.74 E150 15.9 SCS 130 ACT -Y SA Temp 112.66 E300 0.6 Roll Mom. 5.777 SCS 107 INAC E1300 0.0 Pitch Mom. 10.257 UpL Cmd Acc 20916 EPH A-Leak 0.5840 P4GM 0.2 Yaw Mom. -4.050 Cmd Rej A 253 EPH B-Leak 0.1080 P41GM 0.0 Current Data: UTC 2001:243:21:10:09 (Aug31) f_ACE 3.50e+02 F_CRM 3.07e+08 Kp 1.7 R km 112084A Currently scheduled FPSI, OTG : ACIS-S NONE Costello Kp : 1.67 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 3.50e+02 Orbit Start Time : 2001:243:05:39:01 Geocentric Distance (km), Orbit Leg : 112026 A CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.32688900000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.32688900000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.61197741110e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 3.06640961100e+08 2) Status at 243/2110: Observed Expected -------- -------- PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 8.5679 deg 8.5679 DEC = -21.4577 deg -21.4577 ROLL = 69.11 deg 69.11 Format = 2 2 OBSID = 2192 2192 SIM FA = -467 -468 SIM TSC = 75624 75624 HETGA = 79.84 deg (OUT) OUT HETGB = 80.21 deg (OUT) OUT LETGA = 78.71 deg (OUT) OUT LETGB = 77.96 deg (OUT) OUT HRC IM PS = ON, 42, 53 SP PS = OFF, 0, 0 Shield 1 HV = OFF, 0 Shield 2 HV = OFF, 0 Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 0 ACIS FP Temp = -119.7 DEA Pwr = 51.7 DPA Pwr = 42.0 Science State = Science Active 3) Radiation: The Chandra radiation environment is medium, and decreasing. ACE EPAM P3: 2 hr fluence is 2.4e6 vs. threshold 3.6e8. CRM-based orbital fluence is 3.1e8 vs. threshold 1.0e9. Chandra is in the magnetosheath. 4) Quick look data: There were no new quicklook datasets in this shift. 5) Comm problems. There were initial comm problems to DSS-54 this afternoon. The poor quality realtime telemetry from the comm problems resulted in a false safemode alert being sent to SOT personnel. 6) Recovery of telemetry fragment on SSR-A. The FOT is hoping to use simple record and playback pointer resets to recover the 20 minute telemetry fragment on SSR-A for obsid 1666. 7) Real-time telemetry flow to spare ACA EGSE. A test of establishing a backup real-time telemetry flow for the ACA EGSE was successfully performed today.