SOT shift report 2000-08-14 M389 Start at 2000:227:16:30 GMT = 2000 Aug. 08 12:30pm EDT End 2:30pm EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_14_2000_M389.txt SOT Lead Mark Freeman Plan: doing OBSID 00754, G320.4-1.2 2000:227:13:53:00.000 19.3 ks ACIS-I NONE - YOUNG, ENERGETIC RADIO PULSAR PSR B1509-58 EVENTS GMT OBSID -------------- ---- ----- Start shift 227:1630 AOS (DSS-54, Madrid) 227:1655 00754 Chandra's state normal (see note 2) Meeting on the offpoint demo (see note 3) 227:1800 End shift 227:1830 NOTES/ISSUES/PROBLEMS --------------------- 1) Radiation: ACE 2 hr fluence is 1.22e+04 vs. threshold 3.6e8. (much lower than earlier) Orbital fluence is 4.23e8 vs. threshold 1.0e9. Kp = 3.3 vs. threshold 6. 2) Chandra's state at AOS was: UTC 2000:227:16:56:00 (Aug14) f_ACE 1.22e+04 F_ACE 4.23e+08 Kp 3.3 R km 122058D OBT 2000:227:16:55:34 CTUVCDU 9899135 OBC s/w NRML FMT2_EPS CPEstat OBT 82659334.35 ONLVCDU 9899120 OBC Errs 0 OBSID 754 EPState SUN SIM TTpos 92903 HETG Angle 80.2 PCADMODE NPNT RA 228.457 Bus V 31.02 SIM FApos -535 LETG Angle 78.3 PCONTROL NPNT Dec -59.115 Bus I 27.22 AOFSTAR GUID Roll 257.641 ACA Object FFFSSSSS Dither ENAB HRC-I HV ON ACA ImFunc TTTTTTTT Dith Yang 5.09 Yaw Rate 0.18 HRC-S HV OFF ACA CCD Temp -10.4 Dith Zang 3.42 Pitch Rate 0.09 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.11 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.42 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -9.29 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.89 SA Resolv 99.22 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 12.95 HRMA power 70.30 SCS 128 -Y SA Amps 13.91 EPHIN Geom LARG OBA power 88.30 SCS 129 +Y SA Temp 110.20 E150 31.0 SCS 130 -Y SA Temp 109.58 E300 0.4 Roll Mom. 6.020 E1300 0.0 Pitch Mom. 6.698 UpL Cmd Acc 40581 EPH A-Leak 0.3640 P4GM 6.6 Yaw Mom. 4.428 Cmd Rej A 46 EPH B-Leak 0.0680 P41GM 0.0 3) Notes on the 2pm meeting regarding the on-orbit offpoint demo to take place this evening. Comm for this SOP begins at 8:25 pm EST (228:00:25 GMT). Wallace outlined the two small changes to the SOP since the last review meeting, no problems. Rob raised the issue of a possible radiation violation between now and then. If it triggers radmon, the daily load will have stopped anyway and the demo will not take place (highly unlikely with current rad levels). If not triggered, instruments are safed prior to the Comm (~7:30pm), so there would not be an issue.