To:sot_shift from: Dan Schwartz date: 14 Feb 02, 12:00noon EST Subject: SOT shift report 2002-02-14 L938 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Feb_14_2002_L938.txt. Shift L938. Start at 45:13:00 GMT = 08:00am 14 Feb EST End 12:00 noon 14 Feb SOT Lead DAS (Times will be given in GMT on day 45.) PLAN ---- Continue running load FEB1102D. This entire orbit will be the ACIS-I obsid 3294, HDF-N deep survey. Next Comms: 045:1545 to 1645 045:2300 to 0000 046:0615 to 0715 046:1430 to 1530 046:2310 to 0010 047:0905 to 1005 047:1520 to 1620 048:0115 to 0215 048:1100 to 1300 048:2135 to 2235 Orbital events: 2002:044:20:05:44.492 EPERIGEE 348 ORBIT PERIGEE 2002:046:03:49:18.280 EAPOGEE 349 ORBIT APOGEE 2002:047:11:33:06.420 EPERIGEE 349 ORBIT PERIGEE 2002:048:19:17:13.052 EAPOGEE 350 ORBIT APOGEE EVENTS ------ Status at LOS, 045:07:37, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 189.206 deg Dec = 62.236 deg ROLL = 132.876 deg Format = 2 OBSID = 3294 HDF-N SIM FA = -535 SIM TSC = 90567 (ACIS-I) HETG = OUT (79.46 deg) LETG = OUT (77.96 deg) HRC-I 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 = 0.3400 mu-a Ascending through 94344 km. ACIS focal plane temperature -119.7. 15:45 AOS Status at AOS, 045:15:49, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 5 FIDS = 3 RA = 189.213 deg Dec = 62.238 deg ROLL = 132.871 deg Format = 2 OBSID = 3294 HDF-N SIM FA = -535 SIM TSC = 90567 (ACIS-I) HETG = OUT (79.46 deg) LETG = OUT (77.96 deg) HRC-I 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 = 0.4040 mu-a Ascending through 122350 km. ACIS focal plane temperature -119.7. 16:45 LOS Status is essentially unchanged. Ascending through 124556 km. ACIS focal plane temperature -119.7. NOTES/ISSUES/PROBLEMS From the 9am status meeting: Everything is routine! One load segment was uplinked, so onboard commands are good through 048:23:05 During the pass, the FOT noticed that the OBC was not using the fid light in slot 2. It registered a "defective pixel" flag. However, the camera is definitely tracking the fid light and telemetering the data. We can see that a warm pixel near the edge of the 8x8 track box might be biasing the centroid. Will there be a problem in the ground processing? We note that this warm pixel is near the fid due to the fact that we have a SIM-z offset for the HDF, to avoid having the HDF itself straddle the gaps in the ACIS-I array. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 3409 HDF-N 043:11:16 ACIS-I NONE Looks good. (partial of a long observation.) ------------------------------------------------------- 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 -------------------------------------------------------