Sep_30_2002_M1166.txt Shift M1166 Start at 2002:273:17:30:00 UTC = 2002 September 30 1:30pm EDT End 2002 September 30 4:30pm EDT SOT shift report 2002-09-30 M1166 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Sep_30_2002_M1166.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running SEP3002B load. Seq # ObsID It Constr. Target Start Time SI Grat RA Dec Roll Slew --------------------------------------------------------------------------------------------------------------- 400216 02736 00 1 47 TUCANAE 2002:273:13:50:14.651 66.0 ACIS-S NONE 5.9987 -72.0965 359.34 0.06 400216 03385 00 1 47 TUCANAE 2002:274:08:38:14.651 4.8 ACIS-S NONE 5.9980 -72.0964 358.59 0.75 500230 P4 04380 00 0 PSR J1105-6107 2002:274:10:25:24.651 11.8 ACIS-S NONE 166.3529 -61.1131 157.66 46.11 ORBITAL EVENTS: 2002:272:06:09:50.076 434 EPERIGEE ORBIT PERIGEE 2002:273:13:53:34.311 435 EAPOGEE ORBIT APOGEE 2002:274:21:38:29.594 435 EPERIGEE ORBIT PERIGEE 2002:276:05:21:37.308 436 EAPOGEE ORBIT APOGEE 2002:277:13:05:54.993 436 EPERIGEE ORBIT PERIGEE 2002:278:20:49:03.847 437 EAPOGEE ORBIT APOGEE 2002:280:04:32:07.880 437 EPERIGEE ORBIT PERIGEE 2002:281:12:15:51.600 438 EAPOGEE ORBIT APOGEE 2002:282:19:58:59.135 438 EPERIGEE ORBIT PERIGEE 2002:284:03:42:27.940 439 EAPOGEE ORBIT APOGEE 2002:285:11:26:45.899 439 EPERIGEE ORBIT PERIGEE 2002:286:19:09:57.448 440 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 273:1730 AOS DSS-66 (Madrid 26m) 273:1800 2736 LOS DSS-66 (Madrid 26m) 273:2000 End of shift 273:2030 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2002:273:18:43:06 (Sep30) f_ACE 0.00e+00 F_CRM 1.21e+09 Kp 3.0 R km 131428D OBT 2002:273:18:42:37 CTUVCDU 3470392 OBC s/w NRML FMT2_SSR CPEstat NORM OBT 149798557.48 ONLVCDU 3470384 OBC Errs 0 OBSID 2736 EPState SUN SIM TTpos 75623 HETG Angle 79.46 PCADMODE NPNT RA 5.992 Bus V 30.08 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec -72.098 Bus I 30.51 AOFSTAR GUID Roll 359.333 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -7.71 Yaw Rate -0.43 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 6.97 Pitch Rate -0.11 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.14 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.46 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -15.24 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.21 SA Resolv 105.24 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 15.26 RadMon ENAB HRMA power 53.60 SCS 128 ACT -Y SA Amps 16.05 EPHIN Geom LARG OBA power 86.80 SCS 129 ACT +Y SA Temp 112.35 E150 3.9 SCS 130 ACT -Y SA Temp 112.35 E300 0.2 Roll Mom. -10.809 SCS 107 INAC E1300 0.0 Pitch Mom. -11.331 UpL Cmd Acc 39951 EPH A-Leak 1.0200 P4GM 0.0 Yaw Mom. 0.951 Cmd Rej A 202 EPH B-Leak 0.7360 P41GM 0.0 Current Data: UTC 2002:273:18:43:06 (Sep30) f_ACE 0.00e+00 F_CRM 1.21e+09 Kp 3.0 R km 131428D Currently scheduled FPSI, OTG : ACIS-S NONE Estimated Kp : 3.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 3.87e+02 GOES-8 P2 flux, in RADMON P4GM units : 0.00 GOES-10 P2 flux, in RADMON P4GM units : 0.00 GOES-8 P5 flux, in RADMON P41GM units : 0.02 GOES-10 P5 flux, in RADMON P41GM units : 0.01 Orbit Start Time : 2002:272:06:14:01 Geocentric Distance (km), Orbit Leg : 131489 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.09057100000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.09057100000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.93771007082e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.20768239082e+09 2) Status at 273:1840 Observed Expected -------- -------- PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 4 5 FIDS = 3 3 RA = 5.9987 deg 5.9987 DEC = -72.0965 deg -72.0965 ROLL = 359.34 deg 359.34 Format = 2 2 OBSID = 2736 2736 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 = 46.8 DPA Pwr = 41.4 Science State = Science Active 3) Radiation The Chandra radiation environment is moderate and variable. Kp is high, = 5.0. ACE 2 hr fluence is 1.8e6 vs. threshold 3.6e8. CRM-based orbital fluence is 1.2e9 vs. threshold 3.0e9. Chandra is in the magnetosheath. 4) Quick Look data review (OK unless noted): Seq # ObsID It Constr. Target Start Time SI Grat Comment ------------------------------------------------------------------------------------------ There were no new quicklook datasets in this shift. 5) The guide star in ACA 7 was periodically dropped and re-acquired by the OBC because of a pair of warm pixels which periodically dithered onto and off the star image.