Apr_18_2000_M270.txt Shift M270 Start at 2000:109:20:00:00 GMT = 2000 Apr 18 4:00pm EDT End 2000 Apr 18 7:00pm EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_18_2000_M270.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running Apr1600C: Seq # ObsID Target start SI Grat RA dec roll ------------------------------------------------------------------------------------------- 400110 01701 XTE J1118+48 2000:109:18:36:37.886 ACIS-S LETG 169.5457 48.0573 220.10 700114 00809 MRK 273X 2000:110:02:32:02.195 ACIS-S NONE 206.2220 55.9187 181.15 ORBITAL EVENTS: 2000:109:10:07:51.155 EPERIGEE 96 ORBIT PERIGEE 2000:110:17:51:23.162 EAPOGEE 97 ORBIT APOGEE 2000:112:01:34:19.640 EPERIGEE 97 ORBIT PERIGEE 2000:113:09:18:29.699 EAPOGEE 98 ORBIT APOGEE 2000:114:17:01:53.531 EPERIGEE 98 ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 109:2000 AOS DSS-54 (Canberra 26m) 109:2230 01701 Chandra status was nominal (see note 1) End of shift 109:2300 LOS DSS-54 (Canberra 26m) 109:2330 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot at 109:2235 was: UTC 2000:109:22:36:01 (Tue Apr 18) f_ACE 9.38e+01 F_ACE 1.71e+06 R km 104445A OBT 2000:109:22:35:37 CTUVCDU 3747044 OBC s/w NRML FMT2_SSR CPEstat OBT 72484537.90 ONLVCDU 3747032 OBC Errs 0 OBSID 1701 EPState SUN SIM TTpos 72439 HETG Angle 80.2 PCADMODE NPNT RA 169.548 Bus V 30.71 SIM FApos -467 LETG Angle 4.5 PCONTROL NPNT Dec 48.055 Bus I 30.77 AOFSTAR GUID Roll 220.096 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 0.81 Yaw Rate 0.18 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -7.96 Pitch Rate -0.15 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.08 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.19 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -22.36 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.81 SA Resolv 112.31 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 14.10 HRMA power 85.60 -Y SA Amps 15.26 EPHIN Geom LARG OBA power 40.40 +Y SA Temp 111.74 E1300 2 -Y SA Temp 111.74 P4GM 0 Roll Mom. 1.296 SCS 128 P41GM 0 Pitch Mom. -4.631 SCS 129 UpL Cmd Acc 18106 A-Leak 0.3200 Yaw Mom. 6.737 SCS 130 Cmd Rej A 111 B-Leak 0.0520 2) Chandra's state at 109:2235 was: WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 169.546 deg 169.546 DEC = 48.057 deg 48.057 ROLL = 220.098 deg 220.098 Format = 2 2 OBSID = 1701 1701 SIM FA = -467 -468 SIM TSC = 72439 72440 HETGA = 80.2 deg (OUT) OUT HETGB = 81.0 deg (OUT) OUT LETGA = 7.5 deg (IN) IN LETGB = 4.5 deg (IN) IN EPHIN A-leak = 0.3200 B-leak = 0.0520 EPHIN Geom = LARG E1300 = 1 (RADMON trigger = 1319) P4GM = 0 (RADMON trigger = 3542) P41GM = 0 (RADMON trigger = 100) HRC IM PS = ON IM Top Step = 0 IM Bot Step = 0 SP PS = OFF SP Top Step = 43 SP Bot Step = 54 Shield 1 HV = OFF Shield 2 HV = ON, Step 8 Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 3800 ACIS FP Temp = -119.7 DEA Pwr = 55.4 DPA Pwr = 41.4 3) ACE 130-214 keV proton flux (p/cm2-s-sr-MeV) and fluence (p/cm2-sr-MeV): Average Flux: 114, steady 2-hour Fluence: 8.22E+05 (SOT alert at 3.6E+8) Orbital Fluence: 1.39E+06 (SOT alert at 1.0E+9) All quiet on the proton front: with the present ACE flux, we are ok. 4) Quick Look data review: There are no new quicklook datasets. 5) OFLS 8.1a will become operational tomorrow morning. The OCC will begin testing AGASC 1.4 on the "third string" (test hardware) tomorrow. 6) The harddisk on the ACA GSE COOT filled. A tar file of telemetry from 1999 has been created, and the 1999 telemetry will be deleted, to make room for future telemetry.