STEREO Weekly Meeting Minutes for 2008-10-28 (Week 44) ANNOUNCEMENTS ------------- * Behind/MAG reports periodic interference with a 64 second period. INSTRUMENT AND SPACECRAFT STATUS -------------------------------- * All subsystems on both spacecraft are nominal, except that the Ahead spacecraft is currently operating on IMU #2. * Both Ahead and Behind are now operating at 480 kbps. DISCUSSION AND OPERATIONS CONSTRAINTS ------------------------------------- Week 43 * On DOY 269, Antenna 25 stopped tracking on Ahead resulting in a loss of 14 or more hours of TLM beginning before 15 UT on 295 to after 5 UT on 296 * PLASTIC tested their POC equipment at APL on Wednesday, day 296 (Oct 22) on Behind, starting at 16:50 UT, and Thursday morning (Oct 23) on Ahead, starting at 11:00 UT. * Average daily downlink was 6.7 Gb (Ahead) and 7.8 GB (Behind) Week 44 * The 17th momentum dump will be performed on Ahead on DAY 304 (Oct 30) at 12:30 UT. * The U.S. will switch to standard time on November 2. Week 45 * No significant activities Week 46 * No significant activities COORDINATED OBSERVATIONS ------------------------ ------------------------------------------------------------------------------- Scheduled activities for Week 44: M Oct 27 (301) T Oct 28 (302) W Oct 29 (303) T Oct 30 (304) Ahead: momentum dump, 12:30 UT F Oct 31 (305) S Nov 01 (306) S Nov 02 (307) Switch to standard time in U.S. ------------------------------------------------------------------------------- Scheduled activities for Week 45: M Nov 03 (308) T Nov 04 (309) W Nov 05 (310) T Nov 06 (311) F Nov 07 (312) S Nov 08 (313) S Nov 09 (314) ------------------------------------------------------------------------------- Scheduled activities for Week 46: M Nov 03 (308) T Nov 04 (309) W Nov 05 (310) T Nov 06 (311) F Nov 07 (312) S Nov 08 (313) S Nov 09 (314) ------------------------------------------------------------------------------- Upcoming events: 2008: SECCHI Stepped calibration rolls Ahead: Dec 16 Behind: Dec 2 ICAL-001: Nov 3-7, Dec 1-5 * Nov 15 Planned network outage at APL 2009: ICAL-001: Jan 5-9, Jan 26-30, Mar 2-6 SECCHI Stepped calibration rolls Ahead: Mar 10, Jun 9, Sep 2, Nov 24 Behind: Mar 10, Jun 16, Sep 22, Dec 22 * Jan 15,22 JOP 80, EIT shutterless * Apr 16,23 JOP 80, EIT shutterless * Apr Two week SUMER campaign (TBC) * May 18 Ahead: Switch downlink rate to 360 kbps * Jun 8 Behind: Switch downlink rate to 360 kbps * Jul 22 Total solar eclipse http://eclipse.gsfc.nasa.gov/SEmono/TSE2009/TSE2009.html * Aug 4 Both: Increase track duration from 4 to 5 hours * Aug 10 Ahead: Switch downlink rate to 160 kbps * Aug 31 Behind: Switch downlink rate to 160 kbps * Sep 10 Ahead at L4 Lagrange point * Sep 29 Messenger - Mercury fly-by * Oct 25 Behind at L5 Lagrange point * Nov 1-Dec 15 SUMER campaign (TBC)