Jun_09_2000_L322.txt Shift L322 Start at 2000:161:11:30:00 GMT = 2000 Jun 09 7:30am EDT End 2000 Jun 09 11:30am EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jun_09_2000_L322.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI Jon Chappell, Gerry Austin, Steve Murray, Mike Juda ACIS-SI OTHER Plan: - Running JUN0800B. Load begins at 161:1135 with TOO observation of BHXB (obsid 679) using ACIS-S/HETG. This observation should be running at beginning of pass at 161:1330. Next observation is 4U 1735-44 (obsid 704) also with ACIS-S/HETG. It starts at about 161:1347, during COMM pass. This observation lasts throughout the pass. Radiation levels have continued slow downward trend which started yesterday. These levels plus EPHIN data will be evaluated to determine if the planned observing program should be continued. Next COMM pass is today (day 161) at 2250. ACIS Squeegy mode test will be run at this time during the nearly 4 hr pass. ORBITAL EVENTS: 2000:160:23:41:29.849 116 EAPOGEE ORBIT APOGEE 2000:162:07:26:01.690 116 EPERIGEE ORBIT PERIGEE 2000:163:15:09:34.298 117 EAPOGEE ORBIT APOGEE 2000:164:22:53:08.029 117 EPERIGEE ORBIT PERIGEE 2000:166:06:37:17.979 118 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift LOS 161:1130 Status at last contact 161:0545 was nominal (see note 1) AOS DSS-46 (Canberra) 161:1330 00679 (State was as expected, load running) LOS DSS-46 161:1530 Radiation levels dropping at end of shift (see note 5) End of shift 161:1530 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last contact: UTC 2000:161:05:46:02 (Jun 9) f_ACE 4.28e+04 F_ACE 1.07e+10 Kp 4.3 R km 140371D OBT 2000:161:05:45:10 CTUVCDU 4266111 OBC s/w NRML FMT2_NORM CPEstat OBT 76916710.19 ONLVCDU 4266096 OBC Errs 0 OBSID 62882 EPState SUN SIM TTpos -99615 HETG Angle 6.3 PCADMODE NPNT RA 203.953 Bus V 31.02 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec -34.284 Bus I 28.74 AOFSTAR GUID Roll 269.422 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc NNNTTTTT Dith Yang 7.66 Yaw Rate 0.07 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 5.06 Pitch Rate -0.09 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.13 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.96 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -42.29 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 50.89 SA Resolv 132.94 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 13.72 HRMA power 56.70 SCS 128 -Y SA Amps 14.68 EPHIN Geom LARG OBA power 111.00 SCS 129 +Y SA Temp 109.89 E150 684 SCS 130 -Y SA Temp 110.51 E300 97 Roll Mom. -2.932 E1300 4 Pitch Mom. -6.577 UpL Cmd Acc 64689 EPH A-Leak 0.3080 P4GM 608 Yaw Mom. 6.110 Cmd Rej A 38 EPH B-Leak 0.0520 P41GM 0 Expected RA, Dec, Roll (degrees): 203.95497, -34.28190, 269.42282 2) Chandra state at 161:1330 WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA = 237.687 deg 237.68693 DEC = -56.484 deg -56.48106 ROLL = 327.624 deg 327.62324 Format = 2 2 OBSID = 433 679 SIM FA = -467 -468 SIM TSC = 72439 72440 HETGA = 6.33 deg (OUT) IN HETGB = 6.33 deg (OUT) IN LETGA = 78.46 deg (OUT) OUT LETGB = 78.33 deg (OUT) OUT EPHIN A-leak = 0.2880 B-leak = 0.0480 ACE Proton Flux = 24000 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 2.1E+8 LT 3.6E+8 Radiation Level OK Kp Index (Costello) = 2.33 LT 6 is OK EPHIN Geom = LARG E1300 = 2 LT 1318.52 (RADMON P4GM = 295 LT 3542.40 Triggers) P41GM = 0 LT 100.00 HRC SP PS = ON IM 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 = 3300 ACIS FP Temp = -119.5 Cold Radiator = -127.9 DEA Pwr = 51.5 DPA Pwr = 40.8 Science State = Science Active 3) Notes from 9:00am meeting: Operations (Darrell): - 2 supports, 2 SSR dumps yesterday, all OK - Uplinked 2 load segs of JUN08 load, good to 164:0029 - Ran CAP 613 - HRC door reposition - Ran CAP 616 - ACIS CTI measurement Mission Planning (Ken/Kevin): - Built and reviewed JUN08 load to pick-up observations at TOO today. - JUN11 needs to be rerun for continuity, will be checked via diff from previous rev Spacecraft Engineering (Jeff): - ASVT testing scheduled for 10am today SOT (Bill Podgorski): - Radiation levels look good so far. Has been slow decline in flux from peak of over 300,000 yesterday to to 27,000 now (9:26am EDT). EPHIN P4GM channel has decreased from peaks of over 4000 cts/sample to 600 cts/sample at last RT contact. These are vs. RADMON trigger level of 3542.4 cts/sample in this channel. DSOPS(Joy): - Many quick looks today (see below) 4) Quick Look data review: OBSID Target Time Comment ----- ------ -------------- ------- 00898 B1138-262 ACIS-S 2000:158:04:06 00800 CB58 ACIS-S 2000:158:16:16: 001700 CIRX-1 ACIS-S/HETG 2000:160:04:07 00937 AX J1025+4714 ACIS-I 2000:159:23:26 00505 CEN Cluster ACIS-S 2000:160:00:36 00031 VEGA HRC-I 2000:159:05:48 0089 V1494AQL ACIS-I 2000:159:02:40: 4) Radiation levels dropping at end of shift. ACE flux in 130-214 proton channel = ~6000 ACE 2 hr fluence = 1.0E+8 EPHIN P4GM channel = 179 cts/sample period