Aug_20_2002_M1125.txt Shift M1125 Start at 2002:232:16:30:00 UTC = 2002 August 20 12:30pm EDT End 2002 August 20 4:30pm EDT SOT shift report 2002-08-20 M1125 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_20_2002_M1125.txt SOT Lead Robert Cameron SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running AUG1902D load. Perform Earth transit test for ACA. Seq # ObsID It Constr. Target Start Time SI Grat RA Dec Roll Slew --------------------------------------------------------------------------------------------------------------- ---- 61078 00 CAL-ER 2002:232:08:24:47.879 3.6 -- -- 296.6000 -37.5000 301.91 58.76 ---- 61077 00 CAL-ER 2002:232:17:38:00.879 4.2 -- -- 353.0000 -41.0000 42.13 74.82 ---- 61076 00 CAL-ER 2002:232:19:14:53.202 4.2 -- -- 308.4000 -48.0000 326.33 53.72 500213 02763 00 0 G337.2 - 0.7 2002:232:20:53:27.202 49.5 ACIS-S NONE 249.8559 -47.8221 269.03 40.07 900144 04365 00 0 GROTH-WESTPHAL FLD 2002:233:11:17:14.724 84.7 ACIS-I NONE 214.4032 52.4960 275.07 104.81 800291 03291 00 0 RCS1325+2858 2002:234:11:16:34.724 31.2 ACIS-S NONE 201.6128 29.0473 279.44 25.62 ORBITAL EVENTS: 2002:232:14:13:12.158 419 EPERIGEE ORBIT PERIGEE 2002:233:21:56:14.033 420 EAPOGEE ORBIT APOGEE 2002:235:05:40:28.830 420 EPERIGEE ORBIT PERIGEE 2002:236:13:24:04.268 421 EAPOGEE ORBIT APOGEE 2002:237:21:07:43.408 421 EPERIGEE ORBIT PERIGEE 2002:239:04:51:51.878 422 EAPOGEE ORBIT APOGEE 2002:240:12:35:44.029 422 EPERIGEE ORBIT PERIGEE 2002:241:20:20:02.054 423 EAPOGEE ORBIT APOGEE 2002:243:04:04:32.349 423 EPERIGEE ORBIT PERIGEE 2002:244:11:48:33.813 424 EAPOGEE ORBIT APOGEE 2002:245:19:33:41.256 424 EPERIGEE ORBIT PERIGEE 2002:247:03:17:01.836 425 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 232:1630 AOS DSS-54 (Madrid 34m) 232:1700 61078 LOS DSS-54 (Madrid 34m) 232:1800 AOS DSS-27 (Goldstone 34m) 232:1800 End of shift 232:2030 LOS DSS-27 (Goldstone 34m) 232:2150 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra snapshot: UTC 2002:232:17:43:06 (Aug20) f_ACE 0.00e+00 F_CRM 0.00e+00 Kp 2.0 R km 44918A OBT 2002:232:17:42:47 CTUVCDU 6409599 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 146252567.00 ONLVCDU 6409584 OBC Errs 0 OBSID 61077 EPState SUN SIM TTpos -99616 HETG Angle 79.46 PCADMODE NMAN RA 353.000 Bus V 30.08 SIM FApos -535 LETG Angle 77.96 PCONTROL NPNT Dec -41.000 Bus I 31.27 AOFSTAR GUID Roll 42.129 ACA Object SSSSSSSS Dither DISA HRC-I HV OFF ACA ImFunc TTNNSSSS Dith Yang 0.00 Yaw Rate 0.09 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 0.00 Pitch Rate 0.12 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.09 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa 17.79 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -49.52 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.97 SA Resolv 145.07 Batt 3 SOC 100.00% Cold Rad -123.1 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 15.26 RadMon DISA HRMA power 94.40 SCS 128 ACT -Y SA Amps 15.66 EPHIN Geom SMAL OBA power 102.50 SCS 129 ACT +Y SA Temp 112.04 E150 28195.1 SCS 130 ACT -Y SA Temp 113.28 E300 208.6 Roll Mom. -6.426 SCS 107 INAC E1300 0.6 Pitch Mom. 6.342 UpL Cmd Acc 35853 EPH A-Leak 1.0200 P4GM 33.2 Yaw Mom. 13.432 Cmd Rej A 252 EPH B-Leak 0.3800 P41GM 0.0 Current Data: UTC 2002:232:17:43:06 (Aug20) f_ACE 0.00e+00 F_CRM 0.00e+00 Kp 2.0 R km 44918A Currently scheduled FPSI, OTG : HRC-S NONE Estimated Kp : 2.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 8.06e+03 GOES-8 P2 flux, in RADMON P4GM units : 0.01 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 : 0.01 Orbit Start Time : 2002:232:14:19:00 Geocentric Distance (km), Orbit Leg : 44449 A CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 6.21316000000e+04 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.15413590000e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00 2) Status at 232:1745 Observed Expected -------- -------- PCAD MODE = NMAN NMAN CONTROL LAW FLAG = NPNT NPNT Stars: = 1 4 FIDS = 0 0 RA = 353.0000 deg 353.0000 DEC = -41.0000 deg -41.0000 ROLL = 42.13 deg 42.13 Format = 2 2 OBSID = 61077 61077 SIM FA = -535 -536 SIM TSC = -99616 -99616 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 = OFF, 0, 0 SP PS = ON, 43, 54 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 = -116.6 DEA Pwr = 25.7 DPA Pwr = 39.6 Science State = Science Idle 3) Radiation The Chandra radiation environment is high and steady. ACE 2 hr fluence is 4.5e7 vs. threshold 3.6e8. CRM-based orbital fluence is 0.0e0 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 ------------------------------------------------------------------------------------------ 800224 04361 00 0 RXJ1720.1+2638 2002:231:21:16:38.000 25.9 ACIS-I NONE ok. 5) There is a problem with the primary HRC ESGE, so telemetry is re-directed to the secondary HRC EGSE. The problem should be fixed tomorrow. 6) We did not get all 4 stars for the Earth transit test. Several search attempts were needed to lock onto the star in slot 0. The stars selected for the test were fainter than usual, so these results are useful. The Earth occultation test only covered the entrance of the Earth limb into the ACA field of view.