Dec_31_2001_M893.txt Shift M893 Start at 2001:365:17:00:00 UTC = 2001 Dec 31 12:00pm EST End 2001 Dec 31 1:30pm EST SOT shift report 2001-12-31 M893 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Dec_31_2001_M893.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running DEC2801B load. Seq # ObsID Target start SI Grat RA dec roll --------------------------------------------------------------------------------------------------- 700457 03018 00 PSS0134+3307 2001:365:15:57:54.675 5.0 ACIS-S NONE 23.5674 33.1419 283.85 700583 03144 00 NGC 4051 2001:365:18:01:24.874 92.5 HRC-S LETG 180.8080 44.5101 82.01 290140 02584 00 HZ43 2002:001:20:02:21.933 19.0 HRC-S LETG 199.1009 29.0753 69.03 ORBITAL EVENTS: 2001:364:21:06:18.179 331 EPERIGEE ORBIT PERIGEE 2002:001:04:49:59.356 332 EAPOGEE ORBIT APOGEE 2002:002:12:35:44.583 332 EPERIGEE ORBIT PERIGEE 2002:003:20:18:48.951 333 EAPOGEE ORBIT APOGEE 2002:005:04:03:33.958 333 EPERIGEE ORBIT PERIGEE 2002:006:11:46:54.751 334 EAPOGEE ORBIT APOGEE 2002:007:19:30:45.667 334 EPERIGEE ORBIT PERIGEE 2002:009:03:14:37.683 335 EAPOGEE ORBIT APOGEE 2002:010:10:58:51.600 335 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 365:1700 AOS DSS-24 (Goldstone 34m) 365:1700 3018 LOS DSS-24 (Goldstone 34m) 365:1800 End of shift 365:1830 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2001:365:17:08:05 (Dec31) f_ACE 0.00e+00 F_CRM 1.47e+09 Kp 2.0 R km 124146A OBT 2001:365:17:07:45 CTUVCDU 12063871 OBC s/w NRML FMT2_EPS CPEstat NORM OBT 126205665.63 ONLVCDU 12063856 OBC Errs 0 OBSID 3018 EPState SUN SIM TTpos 75623 HETG Angle 79.46 PCADMODE NPNT RA 23.570 Bus V 29.77 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec 33.140 Bus I 26.72 AOFSTAR GUID Roll 283.853 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTNTNTT Dith Yang 7.26 Yaw Rate -0.13 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -5.00 Pitch Rate -0.02 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.07 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.50 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -22.79 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.13 SA Resolv 112.68 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 12.76 RadMon ENAB HRMA power 47.00 SCS 128 ACT -Y SA Amps 13.53 EPHIN Geom LARG OBA power 119.30 SCS 129 ACT +Y SA Temp 118.41 E150 1639.0 SCS 130 ACT -Y SA Temp 118.41 E300 32.4 Roll Mom. 6.428 SCS 107 INAC E1300 0.6 Pitch Mom. 3.279 UpL Cmd Acc 8292 EPH A-Leak 1.0200 P4GM 106.4 Yaw Mom. 0.064 Cmd Rej A 238 EPH B-Leak 0.3000 P41GM 0.3 Current Data: UTC 2001:365:17:08:05 (Dec31) f_ACE 0.00e+00 F_CRM 1.47e+09 Kp 2.0 R km 124146A Currently scheduled FPSI, OTG : ACIS-S NONE Costello Kp : 2.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 4.17e+04 Orbit Start Time : 2001:364:21:09:01 Geocentric Distance (km), Orbit Leg : 123988 A CRM Region : 1 (Solar_Wind) External Proton Flux (p/cm^2-s-sr-MeV) : 4.17000000000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 4.17000000000e+04 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.76198498150e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.47408693990e+09 2) Status at 365:1710: Observed Expected -------- -------- PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 3 5 FIDS = 3 3 RA = 23.5674 deg 23.5674 DEC = 33.1419 deg 33.1419 ROLL = 283.85 deg 283.85 Format = 2 2 OBSID = 3018 3018 SIM FA = -467 -468 SIM TSC = 75623 75624 HETGA = 79.46 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 = 52.8 DPA Pwr = 42.7 Science State = Science Active 3) Radiation Chandra Radiation environment is high and steady. However, HRC observations are scheduled for the remainder of this orbit, so no ground interruption is anticipated. EPHIN P4GM rates are about 1/3 of the RADMON threshold, and have been rising for the past several hours, but hopefully will remain below threshold. ACE 2 hr fluence is 2.9e8 vs. threshold 3.6e8. CRM-based orbital fluence is 1.5e9 vs. threshold 3.0e9. Chandra is in the solar wind. 4) Quick Look data review (OK unless noted): There were no new quick look data in this shift. 5) Guide stars in obsid 3018. The ACA did not find 2 guide stars in osbid 3018: AGASC IDs 301078152 and 301080376. These stars have large uncertainties in magnitude and colour in the AGASC. Inspection of the Digital Sky Survey shows that 301078152 is a double star with a separation of about 10 arcsec. 301080376 looks like a normal star. Both of these objects will be added to the bad AGASC ID list, to prevent them being used in the future.