To:sot_shift from: Dan Schwartz date: 07 Feb 01, 12:00noon EST Subject: SOT shift report 2001-02-07 L566 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Feb_07_2001_L566.txt. Shift L566. Start at 38:13:00 GMT = 08:00am 07 Feb EST End 12:00 noon 07 Feb SOT Lead DAS (Times will be given in GMT on day 38. In general times are rough, not precise.) PLAN ---- Continue running load FEB0501c. Finish ACIS-S/HETG observation of VELA X-1, OBSID 1927, and to ACIS-S/HETG observation of Iota Orionis, obsid 599. Then do CTI measurements surrounding perigee passage. No Comm this shift. Next Comms: 038:2100 to 2300 039:0400 to 0510 039:1355 to 1455 040:0000 to 0100 040:0900 to 1000 040:1830 to 1930 041:0350 to 0550 041:1200 to 1300 041:2210 to 2310 042:0630 to 0730 042:1300 to 1400 042:2000 to 2100 Orbital events: 039:14:34:53.231 208 ORBIT PERIGEE 040:22:17:42.992 209 ORBIT APOGEE 042:06:02:33.024 209 ORBIT PERIGEE 043:13:45:33.547 210 ORBIT APOGEE 044:21:29:18.081 210 ORBIT PERIGEE EVENTS ------ Status at LOS, 038:12:57, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 135.510 deg Dec = -40.571 deg ROLL = 351.988 deg Format = 2 OBSID = 1927 VELA X-1 SIM FA = -467 SIM TSC = 73192 (ACIS-S) HETG = IN ( 6.34 deg) LETG = OUT (78.34 deg) HRC-S HV is ON EPHIN Geom = LARG E1300 = 0.0 LT 10.0 (RADMON P4GM = 0.0 LT 300. Triggers) P41GM = 0.0 LT 8.47 A-leak = 1.0200 mu-a B-leak = 0.1880 mu-a Descending through 134708 km. ACIS focal plane temperature -119.7. NOTES/ISSUES/PROBLEMS From the 9am status meeting: 3 supports, all data current. Ran CAP 695, backed out pointer reset patch and turned off SSR-B. We are running on SSR-A now. The re-dump of SSR-B showed the same error in OBSID. This means the error is generated on-board Chandra -- will open a progress report and do fault tree diagnosis. New products out for FEB1201. Load review at 2pm. Possible problem with the back to back LETG retraction followed by HETG insertion -- this is counter to our policy but may be forced by observational constraints. Review for CAPs to load the eclipse patches will take place at 9:30 am today. Star selection working group telecon at 10am today. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 01928 VELA X-1 036:05:48 ACIS-S HETG Looks good 02419 A2256 037:21:12 ACIS-S 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 -------------------------------------------------------