To:sot_shift from: Dan Schwartz date: 22 Mar 01, 12:00noon EST Subject: SOT shift report 2001-03-22 L609 -------- See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Mar_22_2001_L609.txt. Shift L609. Start at 81:13:00 GMT = 08:00am 22 Mar EST End 12:00 noon 22 Mar SOT Lead DAS Spac/Aspect WAP,RAC (OTG testing on ASVT) FOT/Sci liason AN (Times will be given in GMT on day 81.) PLAN ---- Continue running load Mar1901c. We have finished OBSID 1869, HRC-S/LETG of the intermediate activity star epsilon Eridanus, and will perform CTI measurements surrounding the perigee passage. Also at perigee, we will retract LETG via real time commanding. Next Comms: 081:22:30 to 23:30 082:04:00 to 05:00 082:12:00 to 13:00 082:21:00 to 22:00 083:06:00 to 07:00 083:15:00 to 16:00 083:22:50 to 00:50 084:07:25 to 08:25 084:15:45 to 16:45 085:00:55 to 01:55 Orbital events: 2001:081:21:59:13.763 224 EPERIGEE ORBIT PERIGEE 2001:083:05:42:33.737 225 EAPOGEE ORBIT APOGEE 2001:084:13:25:54.296 225 EPERIGEE ORBIT PERIGEE 2001:085:21:09:57.403 226 EAPOGEE ORBIT APOGEE 2001:087:04:53:19.817 226 EPERIGEE ORBIT PERIGEE EVENTS ------ Status at LOS, 081:14:17, was as follows: PCAD MODE = NPNT CONTROL LAW FLAG = NPNT Stars: = 8 FIDS = 0 RA = 84.995 deg Dec = -32.996 deg ROLL = 265.616 deg Format = 2 OBSID = 61692 CTI measurement SIM FA = -990 SIM TSC = -99616 (HRC-S) HETG = OUT (79.84 deg) LETG = IN ( 4.46 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 = 0.7280 mu-a B-leak = 0.1320 mu-a Descending through 76474 km. ACIS focal plane temperature -119.9. NOTES/ISSUES/PROBLEMS from Space Weather News for March 21, 2001: "GEOMAGNETIC ACTIVITY WARNING: Coronal mass ejections that left the Sun on March 19th and 20th could buffet Earth's magnetosphere before the weekend. Our planet may also be heading for an encounter with a solar wind stream. Together these events could trigger another round of geomagnetic activity." Currently ACE rates are low, in the 100's but variable. From the 9am status meeting: Final segment of load for MAR1901c uplinked, onboard stored command loads good through 085:00:19. MAR2601c loads reviewed and approved yesterday. ASVT testing today, starting 11am. Flight Director's CCB meeting at 2pm today as usual, but next week's meeting will be on Friday, Mar 30. Next weeks meeting will be expected to approve the products for the Grating operations patch tests scheduled to start April 2. Quick look data: OBSID Target Time Comment ----- ------ -------------- ------- 1594 1ES1927+654 079:13:19 HRC-S LETG 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 -------------------------------------------------------