STEREO Weekly Meeting Minutes for 2008-02-26 (Week 9) ANNOUNCEMENTS ------------- * There will be a power outage at APL over the weekend on days 67-69 (Mar 7-9). Power will go off Friday at 22:00 UTC, and will be restored Monday at 3:30 UTC. The MOC will continue operating on the generator. The DMZ connections should be maintained. Email is expected to continue to work. However, the MOC will be without telephones. Instrument teams should submit any commands before the weekend. * Daylight savings time in the U.S. starts March 9. INSTRUMENT AND SPACECRAFT STATUS -------------------------------- * All subsystems on both spacecraft are nominal, except that the Ahead spececraft is currently operating on IMU #2. DISCUSSION AND OPERATIONS CONSTRAINTS ------------------------------------- Week 8 * On day 51 (Feb 20), station 45 lost ranging lock for several minutes during both the Ahead and Behind passes because of a software anomaly at the tracking station. * Monitor data was lost during the station 63 support of Behind on day 55 (Feb 24) because of a JPL network core router failure. This had little inpact on operations. * The average daily downlink was 7.0 gigabits on Ahead and 7.9 gigabits on Behind. * The SECCHI calibration roll on Behind was carried out successfully on day 50 (Feb 19). Week 9 * Nothing unusual planned. Week 10 * PLASTIC flight software revision 3.2.7 will be loaded on Behind on Monday, March 3 (day 63). * G&C parameters will be adjusted on Wednesday and Thursday. * There will be a power outage at APL from March 7-9. See the announcement above for details. Week 11 * Nothing unusual planned. Week 12 * The 8th momentum dump on Behind is planned for day 79 (Mar 18) at 21:25 UT. Week 13 * A momentum dump is anticipated on Ahead during this week. COORDINATED OBSERVATIONS ------------------------ ------------------------------------------------------------------------------- Scheduled activities for Week 09: M Feb 25 (056) T Feb 26 (057) W Feb 27 (058) T Feb 28 (059) F Feb 29 (060) S Mar 01 (061) S Mar 02 (062) ------------------------------------------------------------------------------- Scheduled activities for Week 10: M Mar 03 (063) Behind: PLASTIC flight software load T Mar 04 (064) W Mar 05 (065) T Mar 06 (066) F Mar 07 (067) S Mar 08 (068) S Mar 09 (069) * Daylight savings time in U.S. starts March 9. ------------------------------------------------------------------------------- Scheduled activities for Week 11: M Mar 10 (070) T Mar 11 (071) W Mar 12 (072) T Mar 13 (073) F Mar 14 (074) S Mar 15 (075) S Mar 16 (076) ------------------------------------------------------------------------------- Scheduled activities for Week 12: M Mar 17 (077) T Mar 18 (078) Behind: Momentum dump 21:25 W Mar 19 (079) T Mar 20 (080) Start of Whole Heliosphere Interval Campaign JOP 201, Linking Corona to Solar Wind at Ulysses F Mar 21 (081) JOP 201, Linking Corona to Solar Wind at Ulysses S Mar 22 (082) JOP 201, Linking Corona to Solar Wind at Ulysses S Mar 23 (083) JOP 201, Linking Corona to Solar Wind at Ulysses ------------------------------------------------------------------------------- Upcoming events: 2008: SECCHI Stepped calibration rolls Ahead: Apr 1, Jun 24, Sep 23, Dec 16 Behind: May 20, Aug 26, Dec 2 * Dec 2007-May 2008 Ulysses quadrature http://stereo-ssc.nascom.nasa.gov/plans/UlyLocation2006-2014_v1.pdf * Mar 20 - Apr 16 Whole Heliosphere Interval http://ihy2007.org/WHI/targeted_plans.shtml Mar 20-26 JOP 201, Linking Corona to Solar Wind at Ulysses Mar 27-Apr 2 JOP 202, Origin of the Slow Solar Wind Apr 3-9 JOP 203, Coronal hole boundaries *or* JOP 206, Low-latitude coronal holes Apr 10-16 JOP 204, Energetics and dynamics of quiet Sun Targets of opportunity: JOPs 205, 206, 194 * Apr 21 - May 16 SUMER campaign * Oct 6 Messenger - Mercury fly-by