To:sot_shift from: Dan Schwartz date: 13 Sep 01, 12:00noon EDT Subject: SOT shift report 2001-09-13 L784 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Sep_13_2001_L784.txt. Shift L784. Start at 256:12:00 GMT = 08:00am 13 Sep EDT End 12:00 noon 13 Sep SOT Lead DAS (Times will be given in GMT on day 256.) PLAN ---- Continue running load SEP1001B. Doing CTI measurement on perigee exit, then ACIS-S/HETG observations of the flare star Proxima Cen, OBSID 2388, and of the galactic black hole candidate E1740.7-2942, OBSID 2491. Next Comms: 256:1440 to 1640 257:0150 to 0350 257:1250 to 1450 257:2040 to 2240 258:0320 to 0520 258:1300 to 1500 258:2230 to 2330 259:0710 to 0810 259:1725 to 1925 Orbital events: 2001:257:18:40:41.693 291 ORBIT APOGEE 2001:259:02:25:52.442 291 ORBIT PERIGEE 2001:260:10:08:37.117 292 ORBIT APOGEE 2001:261:17:52:25.226 292 ORBIT PERIGEE 2001:263:01:35:45.272 293 ORBIT APOGEE 2001:264:09:18:50.346 293 ORBIT PERIGEE 2001:265:17:02:37.520 294 ORBIT APOGEE EVENTS ------ Status at LOS, 256:04:59, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 6 FIDS = 0 RA = 343.002 deg Dec = -27.002 deg ROLL = 340.133 deg Format = 2 OBSID = 61476 ACIS CTI SIM FA = -467 SIM TSC = -99616 (HRC-S) HETG = IN ( 6.34 deg) LETG = OUT (77.96 deg) HRC-I HV is ON EPHIN Geom = SMAL E1300 = 0.3 LT 10.0 (RADMON P4GM = 115.9 LT 300. is P41GM = 0.0 LT 8.47 disabled) A-leak = 1.0000 mu-a B-leak = 0.1800 mu-a Descending through 63615 km. ACIS focal plane temperature -119.9. 14:40 AOS Status at AOS, 256:14:44, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 8 FIDS = 0 RA = 305.003 deg Dec = -35.001 deg ROLL = 295.265 deg Format = 2 OBSID = 61473 ACIS CTI SIM FA = -467 SIM TSC = -99616 (HRC-S) HETG = IN ( 6.34 deg) LETG = OUT (77.96 deg) HRC-I HV is ON EPHIN Geom = LARG E1300 = 0.0 LT 10.0 (RADMON P4GM = 0.4 LT 300. is P41GM = 0.0 LT 8.47 disabled) A-leak = 0.4480 mu-a B-leak = 0.0840 mu-a Ascending through 47644 km. ACIS focal plane temperature -115.0 16:40 LOS. Status essentially unchanged. Ascending through 62264 km. ACIS focal plane temperature -115.8 NOTES/ISSUES/PROBLEMS From the 9am status meeting: Two 26m supports in last day, 6 more 26m supports in a row are coming up. All SSR dump data are current. Last segment of SEP1001B load was uplinked, onboard loads are good through 260:05:05. CAP 648M was run for the September update of the onboard ephemeris. Sept 1701C review held yesterday, SEP1701D products were sent out this morning for a 1pm load review. SEP2401 planning is underway, OCT0101 OR's have been received. ASVT will be used 1-5pm today for testing the momentum envelop. Flight Director CCB meeting at 2pm today. The warm ACIS temperature, -115.0, will compromise the CTI measurement OBSID 61743! Star in slot 7 occasionally being lost and reacquired. Looks like there is a nearby warm pixel. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 2255 NGC 55 254:06:41: ACIS-I Looks good. ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 FAX: (617)495-7356 cell phone: (617)512-5627 pager: 877-693-7198 PIN 693-7198 or e-mail 6937198@archwireless.net -------------------------------------------------------