STEREO Weekly Meeting Minutes for 2025-02-04 (Week 6) ANNOUNCEMENTS ------------- * There will be a STEREO instrument teams meeting March 3-4 at APL (hybrid). Anyone interested in participating is welcome. Please contact Lan Jian and cc Terry Kucera and Angelos Vourlidas. INSTRUMENT and SPACECRAFT STATUS -------------------------------- * Ahead is operating nominally. PLASTIC is in operational mode, but with a moderately higher than normal background rate. * Four years after the initial loss of communications anomaly with the Behind observatory, NASA has directed to cease periodic recovery operations with the last support on October 17, 2018. DISCUSSION AND OPERATIONS CONSTRAINTS ------------------------------------- Week 5 (Jan 27 - Feb 2) * On day 027 (Jan 27), during the DSS-53 support, turbo decoder lock was lost briefly at 06:29 UT. This anomaly resulted in the loss of 205 frames of SSR data. The MOPs team repositioned the SSR pointers during the support and recovered all the affected data. See DR #M117670 for more information. * On day 028 (Jan 28), during the DSS-53 support, turbo decoder lock was lost intermittently between 04:27 UT and 05:20 UT. This anomaly resulted in the loss of 760 frames of SSR data. The MOPs team repositioned the SSR pointers during the support and recovered all the affected data. See DR #M117679 for more information. * On day 028 (Jan 28), during the DSS-26 support, turbo decoder lock was lost briefly at 13:57 UT. This anomaly resulted in the loss of 68 frames of SSR data. The MOPs team repositioned the SSR pointers during the support and recovered all the affected data. * On day 028 (Jan 28), the SECCHI instrument reset at 13:50:16 UT. The SECCHI team reconfigured the instrument to operational mode by 14:33 UT. This was the 81st reset of the SECCHI instrument on the Ahead observatory. * The average daily science data return for Ahead was 7.6 Gbits during this week. Week 6 (Feb 3-9) * Ahead has fourteen passes during the week, all at 720 kbps, and overall coverage is nominal. * There is a DSN network maintenance event scheduled for Wednesday, February 5. Week 7 (Feb 10-16) * Ahead has fifteen passes during the week, all at 720 kbps, and overall coverage is nominal. * On Wednesday, February 12th, a MOC IONET security scan is scheduled from 13:00 to 16:00 UT. Week 8 (Feb 17-23) * Ahead has thirteen passes during the week, all at 720 kbps, and overall coverage is nominal. * Solar Orbiter will have a Venus flyby on Tuesday, February 18. STEREO does not currently have any special observations planned for this event. * The 174th momentum dump is scheduled for Tuesday, February 18, at 18:45 UT. * There will be a power outage in APL bldg 17 between Friday, March 21, at 3pm, and Monday, March 24, at 8am (EDT) in order to accommodate a data center update. This outage should not have any impact on operations, but instrument teams should be aware and report any problems. Week 9 (Feb 24 - Mar 2) * Ahead has fourteen passes during the week, all at 720 kbps, and overall coverage is nominal. Week 10 (Mar 3-9) * Ahead has thirteen passes during the week, all at 720 kbps, and overall coverage is nominal. * There will be a STEREO instrument teams meeting March 3-4 at APL (hybrid). Anyone interested in participating is welcome. Please contact Lan Jian and cc Terry Kucera and Angelos Vourlidas. * The 74th SECCHI stepped calibration roll is scheduled for Wednesday, March 5th, at 12:35 UT. * Daylight Savings Time begins Sunday, March 9. Week 11 (Mar 10-16) * Ahead has sixteen passes during the week, all at 720 kbps, and overall coverage is nominal. * Solar Orbiter Remote Sensing Window 19 begins on Tuesday, March 4. * There is a DSN network maintenance event scheduled for Thursday, March 13. Other COORDINATED OBSERVATIONS ------------------------------------------------------------------------------- Scheduled activities for Week 06: M Feb 03 (034) T Feb 04 (035) W Feb 05 (036) T Feb 06 (037) F Feb 07 (038) S Feb 08 (039) S Feb 09 (040) ------------------------------------------------------------------------------- Scheduled activities for Week 07: M Feb 10 (041) T Feb 11 (042) W Feb 12 (043) T Feb 13 (044) F Feb 14 (045) S Feb 15 (046) S Feb 16 (047) ------------------------------------------------------------------------------- Scheduled activities for Week 08: M Feb 17 (048) T Feb 18 (049) Solar Orbiter Venus flyby; Ahead: Momentum dump, 20:15 UT W Feb 19 (050) T Feb 20 (051) F Feb 21 (052) S Feb 22 (053) S Feb 23 (054) ------------------------------------------------------------------------------- Scheduled activities for Week 09: M Feb 24 (055) T Feb 25 (056) W Feb 26 (057) T Feb 27 (058) F Feb 28 (059) S Mar 01 (060) S Mar 02 (061) ------------------------------------------------------------------------------- Scheduled activities for Week 10: M Mar 03 (062) T Mar 04 (063) W Mar 05 (064) Ahead: SECCHI stepped calibration roll, 12:35 UT T Mar 06 (065) F Mar 07 (066) S Mar 08 (067) S Mar 09 (068) ------------------------------------------------------------------------------- Scheduled activities for Week 11: M Mar 10 (069) T Mar 11 (070) Solar Orbiter Remote Sensing Window 19 begins W Mar 12 (071) T Mar 13 (072) F Mar 14 (073) S Mar 15 (074) S Mar 16 (075) Notes: Solar Orbiter Remote Sensing Window 19, Mar 11-28 Upcoming events: 2025: * Mar 19-27 Parker Solar Probe perihelion pass * Mar 29-Apr 6 Solar Orbiter Remote Sensing Window 20 * Apr 7 Ahead: Mercury transit * Apr 25-30 Solar Orbiter Remote Sensing Window 21 * Jun 15-24 Parker Solar Probe perihelion pass * Sep 7-12 Solar Orbiter Remote Sensing Window 22 * Sep 13-23 Solar Orbiter Remote Sensing Window 23 * Sep 12-20 Parker Solar Probe perihelion pass * Oct 1-16 Solar Orbiter Remote Sensing Window 24 * Dec 9-17 Parker Solar Probe perihelion pass 2026: * Mar 8-16 Parker Solar Probe perihelion pass * Jun 4-12 Parker Solar Probe perihelion pass * Sep 1-9 Parker Solar Probe perihelion pass * Nov 28-Dec 6 Parker Solar Probe perihelion pass * Dec 24 Solar Orbiter Venus flyby 2028: * Mar 18 Solar Orbiter Venus flyby 2029: * Jun 10 Solar Orbiter Venus flyby * Jun 30 Ahead: Mercury transit 2030: * Sep 3 Solar Orbiter Venus flyby ######################################################################## Access the STEREO-SCI-OPS Home Page and Archives: http://listserv.jhuapl.edu/scripts/wa.exe?A0=STEREO-SCI-OPS Unsubscribe from the STEREO-SCI-OPS List: http://listserv.jhuapl.edu/scripts/wa.exe?TICKET=NzM5MjQ2IHNoYWVsYS5pLmpvbmVzbWVjaG9sc2t5QE5BU0EuR09WIFNURVJFTy1TQ0ktT1BTID6aADWmLhmq&c=SIGNOFF ########################################################################