Oct_11_2001_M812.txt Shift M812 Start at 2001:283:17:30:00 UTC = 2001 Oct 11 1:30pm EDT End 2001 Oct 11 4:30pm EDT SOT shift report 2001-10-11 M812 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Oct_11_2001_M812.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running OCT0801C load. Seq # ObsID It Target start time SI Grat RA dec roll --------------------------------------------------------------------------------------------------- 500285 03380 00 RXJ1856.5-3754 2001:283:05:18:34.886 167.5 HRC-S LETG 284.1254 -37.8915 274.38 ---- 61443 00 CAL-ER 2001:285:04:10:57.598 9.0 -- -- 307.0000 -35.0000 287.60 ---- 61442 00 CAL-ER 2001:285:07:40:35.092 3.6 -- -- 8.5000 -1.0000 313.26 ---- 61441 00 CAL-ER 2001:285:14:22:35.092 17.2 -- -- 320.0000 -60.0000 301.93 500285 03381 00 RXJ1856.5-3754 2001:285:19:31:32.673 171.2 HRC-S LETG 284.1257 -37.8913 273.70 ---- 61440 00 CAL-ER 2001:287:19:24:37.509 9.0 -- -- 307.0000 -35.0000 286.88 ---- 61439 00 CAL-ER 2001:287:22:54:14.986 3.6 -- -- 8.5000 -1.0000 309.70 ---- 61438 00 CAL-ER 2001:288:06:50:14.986 17.2 -- -- 320.0000 -60.0000 300.13 500285 03399 00 RXJ1856.5-3754 2001:288:11:59:12.704 9.3 HRC-S LETG 284.1260 -37.8911 272.99 ORBITAL EVENTS: 2001:284:05:18:00.661 301 APOGEE 2001:285:13:03:02.149 301 PERIGEE 2001:286:20:46:06.477 302 APOGEE 2001:288:04:30:14.641 302 PERIGEE 2001:289:12:13:28.555 303 APOGEE 2001:290:19:56:26.273 303 PERIGEE 2001:292:03:40:22.625 304 APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 284:1730 AOS DSS-66 (Madrid 26m) 284:1800 3380 LOS DSS-66 (Madrid 26m) 284:2000 End of shift 284:2030 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2001:284:18:11:04 (Oct11) f_ACE 6.44e+04 F_CRM 0.00e+00 Kp 6.0 R km 121859D OBT 2001:284:18:10:32 CTUVCDU 1544959 OBC s/w NRML FMT1_SSR CPEstat NORM OBT 119211032.55 ONLVCDU 1544944 OBC Errs 0 OBSID 3380 EPState SUN SIM TTpos -99616 HETG Angle 79.46 PCADMODE NPNT RA 284.127 Bus V 30.40 SIM FApos -990 LETG Angle 4.46 PCONTROL NPNT Dec -37.895 Bus I 28.49 AOFSTAR GUID Roll 274.376 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 13.83 Yaw Rate -0.04 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -3.04 Pitch Rate -0.07 OBSMode OBSV ACA Int Time 1.698 Roll Rate 0.15 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.71 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta 6.41 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.21 SA Resolv 84.84 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 13.72 RadMon ENAB HRMA power 72.50 SCS 128 ACT -Y SA Amps 14.49 EPHIN Geom LARG OBA power 35.10 SCS 129 ACT +Y SA Temp 112.35 E150 132.7 SCS 130 ACT -Y SA Temp 112.97 E300 3.4 Roll Mom. -0.646 SCS 107 INAC E1300 0.0 Pitch Mom. -11.399 UpL Cmd Acc 9561 EPH A-Leak 1.0200 P4GM 9.1 Yaw Mom. 0.623 Cmd Rej A 195 EPH B-Leak 0.3480 P41GM 0.0 Current Data: UTC 2001:284:18:11:04 (Oct11) f_ACE 6.44e+04 F_CRM 0.00e+00 Kp 6.0 R km 121859D Currently scheduled FPSI, OTG : HRC-S LETG Costello Kp : 5.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 6.44e+04 Orbit Start Time : 2001:282:21:39:00 Geocentric Distance (km), Orbit Leg : 121947 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.30904410000e+05 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 6.96755331633e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00 2) Status at 284/1810: Observed Expected -------- -------- PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 284.1254 deg 284.1254 DEC = -37.8915 deg -37.8915 ROLL = 274.38 deg 274.38 Format = 1 1 OBSID = 3380 3380 SIM FA = -990 -990 SIM TSC = -99616 -99616 HETGA = 79.46 deg (OUT) OUT HETGB = 80.21 deg (OUT) OUT LETGA = 7.09 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 = 100 Valid Event Rate 2 = 104 Shield Event Rates = 3700 ACIS FP Temp = -119.9 DEA Pwr = 49.7 DPA Pwr = 41.3 Science State = Science Active 3) Radiation: The Chandra radiation environment is high. ACE EPAM P3: 2 hr fluence is 9.5e8 vs. threshold 3.6e8. CRM-based orbital fluence is 0.0e0 vs. threshold 1.0e9. Chandra is in the magnetosheath. Although the 2-hour ACE proton fluence threshold has been exceeded and the Costello Kp is high, the EPHIN rates are well below RADMON thresholds, and the HRC event and shield rates are reasonable, so that there is no need to run SCS 107 to stop observing and protect the science instruments at this time. 4) Quick look data: OBSID Target SI Grat Comment ---------------------------------------------- 03380 RXJ1856.5-3754 HRC-S LETG ok. 80ksec partial obsn.