Dec_06_2000_L503.txt Shift L503 Start at 2000:341:12:30:00 GMT = 2000 Dec 6 7:30am EST End 2000 Dec 6 11:00am EST SOT shift report 2000-12-06 L503 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Dec_06_2000_L503.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running DEC0400C on descending leg. Observing PKS2155-304 with ACIS-S/LETG (obsid 2335). No COMM pass this shift. Radiation levels are low. Seq # ObsID It Target start time SI Grat RA dec roll slew ---------------------------------------------------------------------------------------------------------- 390022 02335 00 PKS2155-304 2000:341:06:58:27.501 30.0 ACIS-S LETG 329.6867 -30.1863 284.01 73.65 390007 01015 00 PKS2155-304 2000:341:15:46:27.501 9.7 ACIS-S LETG 329.6659 -30.1135 283.89 0.13 ---- T_E84 00 CAL-ER 2000:341:19:14:31.134 7.6 -- -- 91.8400 -71.6900 16.82 73.00 ORBITAL EVENTS: 2000:339:11:41:44.465 183 EPERIGEE ORBIT PERIGEE 2000:340:19:25:34.039 184 EAPOGEE ORBIT APOGEE 2000:342:03:08:54.586 184 EPERIGEE ORBIT PERIGEE 2000:343:10:53:34.730 185 EAPOGEE ORBIT APOGEE 2000:344:18:37:13.568 185 EPERIGEE ORBIT PERIGEE 2000:346:02:22:34.754 186 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 341:1230 Status at last contact was nominal (see note 1) End of shift 341:1600 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last contact: UTC 2000:341:10:20:02 (Dec 6) f_ACE 9.13e+01 F_ACE 7.63e+06 Kp 2.3 R km 119733D OBT 2000:341:10:18:52 CTUVCDU 14689279 OBC s/w NRML FMT2_NORM CPEstat NORM OBT 92485132.31 ONLVCDU 14689264 OBC Errs 0 OBSID 2335 EPState SUN SIM TTpos 72440 HETG Angle 79.84 PCADMODE NPNT RA 329.688 Bus V 30.08 SIM FApos -467 LETG Angle 4.46 PCONTROL NPNT Dec -30.188 Bus I 30.01 AOFSTAR GUID Roll 284.007 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 6.31 Yaw Rate 0.17 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -2.54 Pitch Rate 0.07 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.13 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.36 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta 22.07 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 51.05 SA Resolv 67.87 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 14.30 RADMON ENAB HRMA power 76.90 SCS 128 ACT -Y SA Amps 15.26 EPHIN Geom LARG OBA power 106.50 SCS 129 ACT +Y SA Temp 116.22 E150 63.7 SCS 130 ACT -Y SA Temp 116.58 E300 1.3 Roll Mom. 0.166 E1300 0.0 Pitch Mom. -9.787 UpL Cmd Acc 13923 EPH A-Leak 0.4480 P4GM 0.4 Yaw Mom. 3.408 Cmd Rej A 129 EPH B-Leak 0.0840 P41GM 0.0 UTC 2000:341:13:09:02 (Dec 6) f_ACE 7.03e+01 F_ACE 8.01e+06 Kp 2.0 R km 109699D Currently scheduled FPSI, OTG : ACIS-S LETG Costello Kp : 2.00 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 7.03e+01 Orbit Start Time : 2000:339:11:44:00 Geocentric Distance (km), Orbit Leg : 109699 D CRM Region : 2 (Magnetosheath) External Proton Flux (p/cm^2-s-sr-MeV) : 1.47286000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 7.36430000000e+02 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.04599626363e+08 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.76257644940e+07 2) Notes from 9:00am meeting: Operations (Darrell): - 3 supports last 24 hrs, all 34m, 3 SSR dumps all good - 1 load segment uplinked, good thru 344:2100 Mission Planning (Dan): - Products for next week's load released yesterday - Load review at 2pm S/C Engineering(Jeff): - Meeting after 9am to go over scripting issues (see below) SOT(Bill): - Radiation levels low - OTG telecon at 3pm on 512-225-3000 access code 77177# DSOPS(Joy): - One quick look (see below) GOT(Chris/George): - Announced telecon number change (temporary) - Facility work on library finished - Will address scripting issues in mtg after 9am Roger: - Group from MASS judges ASSN will tour at 4:30pm today Meetings, etc. - Star telecon at 10am - Load review at 2pm - OTG telecon at 3pm 3) Quick look data: Seq # ObsID It Target start time SI Grat Comment ---------------------------------------------------------------------------------------------------------- 700004 00332 00 NGC 1068 2000:339:18:30:05.471 46.3 ACIS-S HETG 4) Meeting on scripting problems - The LETG MANUAL INSERT script run on November 18 hung up at the command to power off MCE-B, command uplinked manually worked. - The LETG MANUAL INSERT script run early AM on Dec 5 hung up twice, once at the command to power-on the MCE-B and again at the command to power MCE-B off. Both times commands were sent manually and worked. - Testing done yesterday by Darrell/GOT indicated a more general problem with scripts which have individual commands uplinked separately, separated by a short (1 sec) wait time. All OTG manual scripts (which have this form) failed sporadically. - These scripts have been verified and run many times prior to the recent upgrade of the on-line system - Based on experience to date, we expect to have similar hang-up problems with scripts which have a structure like that of the OTG manual scripts. Jeff extimated the numbers of such scripts at "tens". - We have an LETG RETRACT tomorrow (Dec 7) which is highly time constrained. - Two options were discussed to handle the immediate problem of tomorrow's LETG RETRACT: * Decrease command system wait time between commands from 3 secs to 1 sec (don't know if it will work, will test today) * Run the hanging commands manually - This problem will be worked intensively. - A tagup mtg will be held at 2:30pm today