Aug_29_2001_M769.txt Shift M769 Start at 2001:241:19:00:00 UTC = 2001 Aug 29 3:00pm EDT End 2001 Aug 29 6:00pm EDT SOT shift report 2001-08-29 M769 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_29_2001_M769.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 --------------------------------------------------------------------------------------------------- 800168 02229 00 RX J1350.0+6007 2001:241:13:34:46.575 59.0 ACIS-I NONE 207.6804 60.0990 302.18 800134 01666 00 A2218 2001:242:06:25:56.575 49.2 ACIS-I NONE 248.9416 66.2759 266.08 ---- 61489 00 CAL-ER 2001:242:20:48:20.746 8.1 -- -- 56.0000 56.6000 105.91 ---- 61488 00 CAL-ER 2001:243:03:19:28.068 1.0 -- -- 359.0000 10.0000 133.16 ---- 61487 00 CAL-ER 2001:243:10:09:51.348 10.0 -- -- 359.0000 10.0000 133.34 600134 01577 00 M31 NUCLEUS 2001:243:13:24:31.348 5.0 ACIS-I NONE 10.8164 41.3181 142.77 ORBITAL EVENTS: 2001:240:14:08:17.053 284 EPERIGEE ORBIT PERIGEE 2001:241:21:51:29.301 285 EAPOGEE ORBIT APOGEE 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 241:1900 AOS DSS-66 (Madrid 26m) 241:1935 2229 LOS DSS-66 (Madrid 26m) 241:2135 End of shift 241:2200 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2001:241:20:21:07 (Aug29) f_ACE 6.62e+03 F_CRM 2.20e+09 Kp 1.7 R km 138552A OBT 2001:241:20:20:48 CTUVCDU 3854333 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 115503648.45 ONLVCDU 3854320 OBC Errs 0 OBSID 2229 EPState SUN SIM TTpos 89719 HETG Angle 79.84 PCADMODE NPNT RA 207.681 Bus V 30.55 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec 60.100 Bus I 30.26 AOFSTAR GUID Roll 302.178 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -2.85 Yaw Rate 0.26 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -3.65 Pitch Rate -0.24 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 0.02 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta 26.90 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.21 SA Resolv 62.90 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 14.49 RadMon ENAB HRMA power 85.80 SCS 128 ACT -Y SA Amps 15.46 EPHIN Geom LARG OBA power 140.00 SCS 129 ACT +Y SA Temp 109.89 E150 36.0 SCS 130 ACT -Y SA Temp 110.51 E300 1.1 Roll Mom. 10.817 SCS 107 INAC E1300 0.0 Pitch Mom. -3.523 UpL Cmd Acc 19600 EPH A-Leak 1.0200 P4GM 0.4 Yaw Mom. 8.130 Cmd Rej A 204 EPH B-Leak 0.1960 P41GM 0.0 Current Data: UTC 2001:241:20:21:07 (Aug29) f_ACE 6.62e+03 F_CRM 2.20e+09 Kp 1.7 R km 138552A Currently scheduled FPSI, OTG : ACIS-I NONE Costello Kp : 1.67 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 6.62e+03 Orbit Start Time : 2001:240:14:14:01 Geocentric Distance (km), Orbit Leg : 138542 A CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.41636350000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.41636350000e+04 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.54786208699e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.19855702699e+09 2) Status at 241/2020: Observed Expected -------- -------- PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 207.6804 deg 207.6804 DEC = 60.0990 deg 60.0990 ROLL = 302.18 deg 302.18 Format = 2 2 OBSID = 2229 2229 SIM FA = -535 -536 SIM TSC = 89719 89720 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 = -119.9 DEA Pwr = 45.0 DPA Pwr = 40.4 Science State = Science Active 3) Radiation: The Chandra radiation environment is high, but decreasing. ACE EPAM P3: 2 hr fluence is 4.8e7 vs. threshold 3.6e8. CRM-based orbital fluence is 2.2e9 vs. threshold 1.0e9. Chandra is in the magnetosheath. Result of radiation telecon: At the radiation telecon at 241:19:15, we decided to keep the loads running. ACE fluence is ~1.0e9 and will probably be around 1.5e9 for the orbit. The CRM fluence is 2e9 at this point. 4) Quick look data: ObsID Target SI Grat Comment ----------------------------------------------- 02210 3C 280 ACIS-S NONE ok, but slightly higher background rate.