Jul_16_2002_L1090.txt Shift L1090 Start at 2002:197:12:00:00 UTC = 2002 July 17 8:00am EDT End 2002 July 17 12:00pm EDT SOT shift report 2002-07-16 L1090 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jul_16_2002_L1090.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running JUL1502D load. The update of the gyro scale factor and alignment matrix on Chandra is still scheduled for tonight, during perigee. A decision will be made later today whether to proceed or not, based on final ground test results from simulations using the ASVT at TRW in Redondo Beach. Seq # ObsID It Constr. Target Start Time SI Grat RA Dec Roll Slew --------------------------------------------------------------------------------------------------------------- 500204 02754 00 0 MSH 11-61A 2002:197:03:30:23.877 30.0 ACIS-I NONE 165.6981 -60.8836 221.81 40.81 500234 02784 00 0 G322.5-0.1 2002:197:12:18:23.877 28.3 ACIS-I NONE 230.7867 -57.0937 279.04 32.35 ORBITAL EVENTS: 2002:196:21:24:38.602 406 EAPOGEE ORBIT APOGEE 2002:198:05:08:33.402 406 EPERIGEE ORBIT PERIGEE 2002:199:12:52:11.281 407 EAPOGEE ORBIT APOGEE 2002:200:20:36:06.093 407 EPERIGEE ORBIT PERIGEE 2002:202:04:19:32.813 408 EAPOGEE ORBIT APOGEE 2002:203:12:04:32.119 408 EPERIGEE ORBIT PERIGEE 2002:204:19:47:30.961 409 EAPOGEE ORBIT APOGEE 2002:206:03:32:36.387 409 EPERIGEE ORBIT PERIGEE 2002:207:11:15:47.246 410 EAPOGEE ORBIT APOGEE 2002:208:19:00:02.850 410 EPERIGEE ORBIT PERIGEE 2002:210:02:43:50.262 411 EAPOGEE ORBIT APOGEE 2002:211:10:27:45.849 411 EPERIGEE ORBIT PERIGEE 2002:212:18:12:00.749 412 EAPOGEE ORBIT APOGEE 2002:214:01:56:19.926 412 EPERIGEE ORBIT PERIGEE 2002:215:09:40:37.333 413 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- AOS DSS-24 (Goldstone 34m) 197:1130 Start Shift 197:1200 02784 LOS DSS-24 (Goldstone 34m) 197:1230 End of shift 197:1600 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2002:197:12:29:06 (Jul16) f_ACE 3.00e+01 F_CRM 1.01e+09 Kp 3.3 R km 112313D OBT 2002:197:12:28:31 CTUVCDU 11312255 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 143209711.10 ONLVCDU 11312240 OBC Errs 0 OBSID 2784 EPState SUN SIM TTpos 95239 HETG Angle 79.46 PCADMODE NPNT RA 230.788 Bus V 30.55 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -57.093 Bus I 28.24 AOFSTAR GUID Roll 279.037 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -2.46 Yaw Rate -0.10 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -3.20 Pitch Rate 0.23 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.09 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.31 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -31.65 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.13 SA Resolv 121.51 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 13.53 RadMon ENAB HRMA power 61.60 SCS 128 ACT -Y SA Amps 14.68 EPHIN Geom LARG OBA power 55.20 SCS 129 ACT +Y SA Temp 108.70 E150 199.0 SCS 130 ACT -Y SA Temp 109.28 E300 5.8 Roll Mom. -4.230 SCS 107 INAC E1300 0.2 Pitch Mom. -4.228 UpL Cmd Acc 27463 EPH A-Leak 1.0200 P4GM 0.5 Yaw Mom. 7.796 Cmd Rej A 178 EPH B-Leak 0.3080 P41GM 0.0 Current Data: UTC 2002:197:12:29:06 (Jul16) f_ACE 3.00e+01 F_CRM 1.01e+09 Kp 3.3 R km 112313D Currently scheduled FPSI, OTG : ACIS-I NONE Costello Kp : 3.33 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 3.00e+01 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 : 0.01 GOES-10 P5 flux, in RADMON P41GM units : 0.02 Orbit Start Time : 2002:195:13:44:01 Geocentric Distance (km), Orbit Leg : 112313 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 7.99141000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 7.99141000000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.62431856540e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.01388223980e+09 2) Radiation The Chandra radiation environment is moderate and rising. There was an X3 solar flare yesterday at 196/2000 UTC (4pm EDT), with an associated CME. The CME was not fully Earth-directed, but ACE and GOES rates are rising. Chandra science will stop for perigee transit at 197/2019 UTC today, but the proton rates may be of concern when Chandra resumes science tomorrow at 198/1232 UTC. ACE 2 hr fluence is 2.2e5 vs. threshold 3.6e8. CRM-based orbital fluence is 1.0e9 vs. threshold 3.0e9. Chandra is in the magnetosphere. 4) Quick Look data review (OK unless noted): Seq # ObsID It Constr. Target Start Time SI Grat Comment ------------------------------------------------------------------------------------------ 900168 P2 03329 00 0 AX J1406.2+2228 2002:196:00:37:15.063 5.0 ACIS-S NONE ok 900169 P2 03330 00 0 AX J1425.2+2303 2002:196:02:12:25.856 5.0 ACIS-S NONE ok 590263 02874 00 1 G21.5-0.9 2002:196:04:06:43.877 20.0 HRC-I NONE ok 200188 02580 00 0 HEN3-1475 2002:196:10:08:03.877 48.0 ACIS-S NONE ok 400178 P3 02698 00 0 1746.7-3224 2002:196:23:56:03.877 8.0 ACIS-S NONE ok