Oct_31_2001_L832.txt Shift L832 Start at 2001:304:12:30:00 GMT = 2001 Oct 31 7:30am EDT End 2001 Oct 31 11:00am EDT SOT shift report 2001-10-31 L832 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Oct_31_2001_L832.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running OCT2801A on ascending leg. Observing 'IRAS 20551-4250' (obsid 2036) with ACIS-S. ACIS "Threshold Crossing Plane" latchup discovered yesterday afternoon from quick looks of obsid's 3403 and 1902. Problem was resolved by running CAP 752B last night. See Oct 31 H832 shift report. ACE rates are low and decreasing slowly (under 500). Solar activity is low but there is a possibility of a major flare from Region 9682. Seq # ObsID It Target start time SI Grat RA dec roll slew ---------------------------------------------------------------------------------------------------------- 400234 03407 00 CYG X-1 2001:301:16:33:48.115 30.0 ACIS-S HETG 299.5721 35.1958 282.85 96.85 400180 02700 00 BHC TRANSIENT 2001:302:01:31:40.693 29.0 ACIS-S HETG 252.4817 -49.9559 235.13 100.69 200118 03403 00 HD 93497 2001:302:10:06:27.066 58.0 ACIS-S HETG 161.7223 -49.4271 111.57 71.73 300050 01902 00 RR PIC 2001:303:02:41:07.066 25.0 ACIS-S NONE 98.9159 -62.6597 61.33 35.98 600168 02034 00 IRAS 05189-2524 2001:303:10:05:47.066 20.0 ACIS-S NONE 80.2608 -25.3829 53.82 39.76 ---- T_E08 00 CAL-ER 2001:303:16:29:38.217 7.7 -- -- 321.0000 -60.0000 290.77 83.79 ---- GG_08 00 CAL-ER 2001:303:19:37:11.014 3.6 -- -- 351.8000 -11.7000 299.74 54.46 ---- T_X09 00 CAL-ER 2001:304:02:47:11.014 20.8 -- -- 321.0000 -60.0000 290.43 54.39 600170 02036 00 IRAS 20551-4250 2001:304:09:01:51.014 45.5 ACIS-S NONE 314.5847 -42.6462 296.01 20.71 700290 02100 00 LBQS 0025-0151 2001:304:22:10:00.977 5.0 ACIS-S NONE 6.8703 -1.5771 299.84 64.50 ORBITAL EVENTS: 2001:303:18:38:37.428 308 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2001:304:01:13:51.527 308 EPERIGEE ORBIT PERIGEE 2001:304:05:48:37.428 309 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2001:305:08:58:31.590 309 EAPOGEE ORBIT APOGEE 2001:306:11:21:08.950 309 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2001:306:15:07:08.950 309 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2001:306:15:53:08.950 309 EE1RADZ0 ELECTRON1 RADIATION ENTRY0 2001:306:16:42:14.148 309 EPERIGEE ORBIT PERIGEE 2001:306:20:45:08.950 310 XE1RADZ0 ELECTRON1 RADIATION EXIT0 2001:308:00:26:58.990 310 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 304:1230 AOS DSS-54 (Madrid 34m) 304:1400 Status at AOS was nominal 2034 (see note 1) LOS DSS-54 304:1500 End of shift 304:1600 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at AOS: UTC 2001:304:14:20:24 (Oct31) f_ACE 3.45e+02 F_CRM 1.78e+08 Kp 3.0 R km 102336A OBT 2001:304:14:19:53 CTUVCDU 8234367 OBC s/w NRML FMT2_SSR CPEstat NORM OBT 120925193.35 ONLVCDU 8234352 OBC Errs 0 OBSID 2036 EPState SUN SIM TTpos 75623 HETG Angle 79.84 PCADMODE NPNT RA 314.586 Bus V 30.40 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec -42.645 Bus I 27.73 AOFSTAR GUID Roll 296.006 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang -2.89 Yaw Rate -0.03 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang -5.37 Pitch Rate -0.08 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.15 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -9.95 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta 3.12 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 51.37 SA Resolv 86.89 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 13.33 RadMon ENAB HRMA power 67.20 SCS 128 ACT -Y SA Amps 14.10 EPHIN Geom LARG OBA power 32.30 SCS 129 ACT +Y SA Temp 112.97 E150 6.4 SCS 130 ACT -Y SA Temp 113.58 E300 0.2 Roll Mom. 8.866 SCS 107 INAC E1300 0.0 Pitch Mom. -12.427 UpL Cmd Acc 36269 EPH A-Leak 1.0200 P4GM 0.0 Yaw Mom. 2.006 Cmd Rej A 80 EPH B-Leak 0.3920 P41GM 0.0 Explanation Current Data: UTC 2001:304:14:20:24 (Oct31) f_ACE 3.45e+02 F_CRM 1.78e+08 Kp 3.0 R km 102336A Currently scheduled FPSI, OTG : ACIS-S NONE Costello Kp : 3.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 3.45e+02 Orbit Start Time : 2001:304:01:19:00 Geocentric Distance (km), Orbit Leg : 102194 A CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 7.83085000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 7.83085000000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 5.80081080600e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.78448490600e+08 HRC IM PS = ON Stp 43/54 SP PS = OFF Shield 1 HV = OFF Shield 2 HV = OFF Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 0 ACIS FP Temp = -119.7 DEA Pwr = 54.6 DPA Pwr = 40.2 Science State = Science Active 2) Notes from 9:00am meeting: Operations (Leon): - 2 supports last 24 hrs, 1 34m, 1 26m - No loads uplinked, still good thru 307:1858 - Current with dump data - Executed CAP 752B to fix ACIS T-Plane latchup problem Mission Planning (Sabina/Kevin): - NOV05 products will be out by 10pm for load review at 2pm - NOV12 load in work, has Leonids in it, products out tomorrow if possible for E-mail review S/C Engineering(Dan): - All is OK SOT(Bill): - Radiation is low but with some varibility. Possibility of a major flare from Region 9682. - ACIS "Threshold Plane Crossing" latchup discovered yesterday afternoon on QL's from obsid's 3403 and 1902. - Problem began during OBSID 3403 on day 302 at at 10:02:30 UTC - CAP 752B written and executed last night to fix problem by cycling power on the FEP's. - Ran CAP steps 1 - 5 but EPHIN rates were too high to proceed with rest of CAP, which consisted of an ACIS CTI run to verify that problem was solved. - Normal outbound CTI was started from load at about 304:0550 - ACIS was observed to be functioning normally DSOPS(Joy/Paul P): - The T-Plane latchup was present during most of obsid 3403 and all of obsid's 1902 and 2034. GOT(Chris): - AXAFFOT1 is up now. Meetings/events: - 10am, ground system CCB - 10am, star working group - 1pm, internal staff - 2pm, load review 3) Quick look data: Seq # ObsID It Target start time SI Grat Comment ---------------------------------------------------------------------------------------------------------- 500133 01956 00 SN1998BW 2001:300:10:57:26.007 48.2 ACIS-S NONE 400234 03407 00 CYG X-1 2001:301:16:33:48.115 30.0 ACIS-S HETG "T-Plane latchup seen" 400180 02700 00 BHC TRANSIENT 2001:302:01:31:40.693 29.0 ACIS-S HETG "T-Plane latchup seen" 200118 03403 00 HD 93497 2001:302:10:06:27.066 58.0 ACIS-S HETG "T-Plane latchup seen" 300050 01902 00 RR PIC 2001:303:02:41:07.066 25.0 ACIS-S NONE "T-Plane latchup seen" 600168 02034 00 IRAS 05189-2524 2001:303:10:05:47.066 20.0 ACIS-S NONE "T-Plane latchup seen"