Mar_28_2000_L249.txt Shift L249 Start at 2000:088:12:30:00 GMT = 2000 Mar 28 7:30am EST End 2000 Mar 28 11:30am EST See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Mar_28_2000_L249.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running MAR2600C, just past perigee doing CTI measurements at start shift. Pickup observation of 'ZETA PUP', obsid 00640 with ACIS-S/HETG. ORBITAL EVENTS: 2000:086:22:42:32.068 88 EAPOGEE ORBIT APOGEE 2000:088:06:26:25.118 88 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift LOS 088:1230 Chandra Status at last pass was nominal(note 1) 62103 AOS DSS-24 (Goldstone) 088:1450 640 Chandra status at AOS was nominal (note 2) LOS DSS-24 088:1550 End of shift 088:1630 NOTES/ISSUES/PROBLEMS --------------------- 1) Chandra ststus at last pass: UTC 2000:088:08:00:01 (Tue Mar 28) f_ACE 3.07e+02 F_ACE 0.00e+00 R km 28038A OBT 2000:088:07:59:27 CTUVCDU 13238527 OBC s/w NRML FMT2_NORM CPEstat OBT 70617567.98 ONLVCDU 13238512 OBC Errs 0 OBSID 62103 EPState ECLP SIM TTpos -99616 HETG Angle 80.6 PCADMODE NPNT RA 283.309 Bus V 28.52 SIM FApos -467 LETG Angle 79.1 PCONTROL NPNT Dec -62.257 Bus I 41.18 AOFSTAR GUID Roll 96.794 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTNNN Dith Yang -1.98 Yaw Rate 0.19 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 4.55 Pitch Rate 0.10 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.07 Door OP UNAC AOACSTAT OK FSS SunBeta NSUN Door CL UNAC FSS Alfa -49.64 Batt 1 SOC 88.12% Avg HRMA Temp 70.58 FSS Beta -49.78 Batt 2 SOC 88.07% ACIS Stat7-0 67 Avg OBA Temp 53.36 SA Resolv 89.80 Batt 3 SOC 88.05% Cold Rad -123.1 OBA Tavg Fault NFLT SA Sun Pres DARK Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 0.14 HRMA power 36.40 -Y SA Amps 0.06 EPHIN Geom LARG OBA power 304.60 +Y SA Temp 88.93 E1300 18816 -Y SA Temp 88.93 P4GM 19968 Roll Mom. 13.010 SCS 128 P41GM 12 Pitch Mom. 15.584 SCS 129 UpL Cmd Acc 53476 A-Leak 0.2960 Yaw Mom. -2.502 SCS 130 Cmd Rej A 61 B-Leak 0.0520 Expected: RA, Dec, Roll (degrees): 283.30601, -62.25599, 96.79199 2) Chandra's state at 088:1450 was: WAS EXPECTED PCAD MODE = NPNT NPNT CONTROL LAW FLAG = NPNT NPNT Stars: = 5 5 FIDS = 3 3 RA 120.872266 deg 120.87225 DEC = -39.993401 deg -39.99340 ROLL = 282.971747 deg 282.97176 Format = 2 2 OBSID = 640 640 SIM FA = -467 -468 SIM TSC = 74423 74424 HETGA = 6.71 deg (IN) IN HETGB = 6.33 deg (IN) IN LETGA = 80.21 deg (OUT) OUT LETGB = 79.08 deg (OUT) OUT EPHIN A-leak = 0.3240 B-leak = 0.0520 ACE Proton Flux = 221 (2 hr avg in 130-214 keV proton channel) Fluence (130-214KeV) = 1.6E+6 LT 3.6E+8 Radiation Level OK EPHIN Geom = LARG E1300 = 2 LT 1318.52 (RADMON P4GM = 0 LT 118.08 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 Shield 2 Stp = 8 Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 3800 ACIS FP Temp = -119.7 Cold Radiator = -127.9 DEA Pwr = 53.4 DPA Pwr = 41.1 3) Notes from 9:00am meeting: Operations yesterday (Darrel Wicker): - 2 1 hr supports last 24 hrs on 34m dishes - Command server 1 failed over to 2 last night due to disk being full. - Last eclipse of spring season was nominal - Will run CAP to put EPS K constants back to nominal and another to dump CPE warm start ctr. Mission Planning (Dan/Kevin/Ken): - APR01A products to be put out today, hope for review late today - OFLS 8.1 test products sent out yesterday, plan review for tomorrow. - Possibility for running squegee mode test Friday but need ACIS team support, so will put it off till later. Spacecraft Engineering(Chris Carignan): - Corruption of GRETA data for days 84 and 85 traced to ground station problem with DSS-24 (one telemetry channel was bad). SOT (Bill Podgorski): - Radiation levels well below limits. - Discussed ACIS FP temp rise above -120 setpoint. ASCDSOPS(Joy Nichols): - No quick looks available today. Command Management (Charlotte Green): - Update to characteristics for DSN antenna blocking angle will be released tomorrow. Meetings/etc (Leon McKendrick): - Meeting will be held Friday after the 9:00am to go over status of Safe Modes Action Items. - Meeting will be held Tuesday April 4 after the 9:00am to go over responses to a couple of safe modes AI's. - FOT now has a web site which will have AI status, schedules, etc. Site can be found at: http://ipa.harvard.edu/fot/