To:sot_shift from: Dan Schwartz date: 21 Nov 00, 12:00noon EST Subject: SOT shift report 2000-11-21 L488 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Nov_21_2000_L488.txt. Shift L488. Start at 326:13:00 GMT = 08:00am 21 Nov EST End 12:00 noon 21 Nov SOT Lead DAS (Times will be given in GMT on day 326. In general times are rough, not precise.) PLAN ---- Continue running load NOV2000c. Do the Hubble deep field north, OBSID 1671, using ACIS-I, for this entire orbit. Next Comms: 326:00:25 to 01:25 327:08:00 to 09:00 327:15:35 to 16:35 Orbital events: 2000:327:14:06:27.088 179 ORBIT APOGEE 2000:328:21:49:52.836 179 ORBIT PERIGEE 2000:331:13:17:18.216 180 ORBIT PERIGEE EVENTS ------ Status at AOS, 326:13:30, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 189.247 deg DEC = 62.190 deg ROLL = 44.309 deg Format = 2 OBSID = 1671 HDF-N SIM FA = -535 SIM TSC = 92903 (ACIS-I) HETG = OUT (79.84 deg) LETG = OUT (78.34 deg) HRC-S HV is ON EPHIN Geom = LARG E1300 = 0.1 LT 10.0 (RADMON P4GM = 0.9 LT 300. Triggers) P41GM = 0.1 LT 8.47 A-leak = 0.8960 mu-a B-leak = 0.1640 mu-a Ascending through 73516 km. ACIS focal plane temperature -119.2. 15:24 LOS Ascending through 85752 km. ACIS focal plane temperature -119.7. NOTES/ISSUES/PROBLEMS ACIS GSE emily was not receiving data from squirt. This is an emily issue, ACIS/MIT team are looking into it. ACIS was not fully cooled at the start of comm (which was actually slightly before the start of OBSID 1671). It was -119.2, and cooled to -119.7 during the two hour comm period. This is not a problem per se, but bears watching. It might relate to the attitude used for the ACA dark current calibration. From the 9am status meeting: CAP 678 was successfully carried out to do the ACA dark current measurement, as reported in SOT shift report 2000-11-20 M487. Products were circulated for the NOV2700 load, and there will be a review today at 2pm. FOT/MP is able to add 20 Ksec to the beginning of OBSID 88, which is a Cen X-3 TOO. They will re-run the entire load and call it NOV2000d. Final review of NOV2700 and NOV2000d is planned for tomorrow afternoon. For the holiday period, a two week load will be built spanning Dec 25, 2000 through Jan 7, 2001. GOT is working GRETA problem. Flight director CCB at 1pm today, to provide formal signoff for the already approved dark current cal procedures. It was noted in SOT shift report 2000-11-18 L485 that the LETG insert script hung up on one command. This has since been tested twice to the ground site with no problems, so the previous failure is a mystery. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 1562 AC114 322:06:23 ACIS-S Looks good 391 NGC 3368 325:04:52 ACIS-S Seems ok. (can't see anything) 2386 HDF NORTH 325:05:55 ACIS-I Seems ok. (can't see anything) ------------------------------------------------------- Dan Schwartz, MS #3 das@head-cfa.harvard.edu phone: (617)495-7232 FAX: (617)495-7356 cell phone: (617)512-5627 pager: 800-759-8352 PIN 1636502 or e-mail 1636502@skytel.com -------------------------------------------------------