Jun_12_2000_L325.txt Shift L325 Start at 2000:164:11:30:00 GMT = 2000 Jun 12 7:30am EDT End 2000 Jun 12 12:00pm EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jun_12_2000_L325.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running JUN1100D observing NGC 4472 with ACIS-S (obsid 321). Maneuver to M82 (obsid 380) at 164:1324 and observe with ACIS-I. Execute RADZONE_ENTRY at 164:1415 then perform ACIS CTI measurement 62028 from 164:1434 to 164:1705. Shut down for perigee passage after this. Radiation levels increasing again and must be watched closely. COMM from 164:1400 to 164:1600. ORBITAL EVENTS: 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 2000:167:14:20:44.447 118 EPERIGEE ORBIT PERIGEE 2000:168:22:05:11.980 119 EAPOGEE ORBIT APOGEE 2000:170:05:49:27.825 119 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift LOS 164:1130 Status at last contact 164:0525 was nominal (see note 1) Radiation levels 164:1200 Current proton flux 21100 2 Hour fluence 7.7E+7 Orbital Fluence 4.82E+08 Kp Observed 3.33 Kp predicted 1.33 R (km) 97478 AOS DSS-46 (Canberra) 164:1400 380 Stop ACIS science for obsid 380 164:1408 Execute RADZONE_ENTRY 164:1415 Maneuver to perigee passage attitude 164:1423 Start science for CTI meas 164:1434 62028 State at this point was nominal, see note 2) 164:1440 LOS DSS-46 164:1600 End of shift 164:1600 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last contact: UTC 2000:164:05:25:01 (Jun12) f_ACE 9.52e+03 F_ACE 2.80e+08 Kp 2.3 R km 123301D OBT 2000:164:05:24:09 CTUVCDU 5272703 OBC s/w NRML FMT2_NORM CPEstat OBT 77174649.35 ONLVCDU 5272688 OBC Errs 0 OBSID 321 EPState SUN SIM TTpos 75624 HETG Angle 79.8 PCADMODE NPNT RA 187.439 Bus V 31.02 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec 8.021 Bus I 30.77 AOFSTAR GUID Roll 240.080 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTNT Dith Yang 4.81 Yaw Rate -0.01 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -5.53 Pitch Rate 0.21 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.09 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa 3.80 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -12.18 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 50.81 SA Resolv 102.21 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 14.68 HRMA power 40.40 SCS 128 -Y SA Amps 15.66 EPHIN Geom LARG OBA power 185.00 SCS 129 +Y SA Temp 108.17 E150 534 SCS 130 -Y SA Temp 107.90 E300 108 Roll Mom. -1.705 E1300 6 Pitch Mom. -8.030 UpL Cmd Acc 5571 EPH A-Leak 0.4640 P4GM 27 Yaw Mom. 2.711 Cmd Rej A 187 EPH B-Leak 0.0760 P41GM 0 UTC 2000:164:11:49:01 (Jun12) Flux_ACE 2.11e+04 Orbital_Fluence_ACE 4.79e+08 Kp 1.7 R km 98139D Expected RA, Dec, Roll (degrees): 187.43869, 8.02342, 240.07979 2) Chandra state at 164:1440 WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 0 0 RA = 274.217194 deg 274.21001 DEC = 72.139723 deg 72.13999 ROLL = 168.012983 deg 168.01937 Format = 2 2 OBSID = 62028 62028 SIM FA = -535 -536 SIM TSC = -99616 -99616 HETGA = 79.83 deg (OUT) OUT HETGB = 80.58 deg (OUT) OUT LETGA = 78.46 deg (OUT) OUT LETGB = 78.33 deg (OUT) OUT EPHIN A-leak = 0.4720 B-leak = 0.0760 ACE Proton Flux = 18716 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 1.3E+7 LT 3.6E+8 Radiation Level OK Kp Index (Costello) = 2.33 LT 6 is OK EPHIN Geom = LARG E1300 = 1 LT 1318.52 (RADMON P4GM = 26 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 = OFF Valid Event Rate 1 = - Valid Event Rate 2 = - Shield Event Rates = - ACIS FP Temp = -119.7 Cold Radiator = -127.9 DEA Pwr = 55.0 DPA Pwr = 41.0 Science State = Science Active 3) Notes from 9:00am meeting: Operations (Darrell): - 8 supports over weekend, 5 34m 3 26m - 9 SSR dumps, no problems - Ran CAP 614 (ACIS squeegy mode test) Friday night. Was OK - Loads good thru 168:1120 - Will run CPE warm start counter dump CAP today Mission Planning (Ken/Kevin): - JUN1100D load running. One load segment is very short (6 mins). Suggestion was made to rebuild load with revised load breakpoints to eliminate this short segment and thereby conserve on SCS load slots. Decision (Marv) was to go as is. - JUN18 load review (first) today at 2:00pm. Products are out. Spacecraft Engineering (Wallace): - Everything is OK with S/C. - Jeff is on 2+ week vacation, S/C questions should be directed to Wallace. SOT (Bill Podgorski): - Radiation levels rising again. Proton flux is above 20,000. Solar flare and partial CME on June 10 (Sat) may affect us today and/or tomorrow. Will watch closely. - Jeff had asked about the quality of OBSID 617 (day 144) since it had high pitch angle (173 degrees, 7 deg off of tail-to-sun). Quick look data was OK and Joy saw no problems in processing. Have asked Rob/Tom to look at aspect, but we expect no issues. We did a very long observation (obsid 637) at a pitch of 166 degrees, and had no problems with it. DSOPS(Joy): - Color printers down. - One quick look (see below). 4) Quick Look data review: OBSID Target Time Comment ----- ------ -------------- ------- 00032 VEGA HRC-S 2000:159:06:48