STEREO Weekly Meeting Minutes for 2024-07-30 (Week 31) ANNOUNCEMENTS ------------- * None. 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 30 (July 22-28) * On day 204 (Jul 22), during the DSS-53 support, the SLE telemetry binds were dropped at 0412z due to an SLE provider disruption. This anomaly resulted in the loss of 2.1 hours of real-time telemetry being delivered to the MOC. See DR #N113244 for more information. * On day 206 (Jul 24), during the DSS-56 support, turbo decoder lock was lost briefly at 1206z. This anomaly resulted in the loss of 36 frames of SSR data. The MOPs team repositioned the SSR pointers during the support and recovered all the affected data. * On day 206 (Jul 24), during the DSS-14 support, turbo decoder lock was lost briefly at 1919z. This anomaly resulted in the loss of 9 frames of SSR data. The MOPs team repositioned the SSR pointers during the support and recovered all the affected data. * On day 206 (Jul 24), during the DSS-14 support, the Storage Variable (SV 1) that triggers the soft Command Loss Timer Autonomy Rule (Rule 192), was increased from 60 hours to 70 hours (in RAM only). This change was made to mitigate risk during periods of limited track coverage and to provide MOps with additional response time should scheduled assets become unavailable. * The average daily science data return for Ahead was 7.0 Gbits during this week. Week 31 (July 29-Aug 4) * Ahead has eight passes during the week, all at 720 kbps, and overall coverage is nominal. Week 32 (Aug 5-11) * Ahead has twelve passes during the week, all at 720 kbps, and overall coverage is nominal. * A DSN maintenance event is scheduled for Monday, August 5 (day 218) between 06:30 and 14:30 UT (2:30-10:30 EDT). * On Wednesday, August 7, a DMZ internet outage is scheduled from 23:00 - 00:00 UT, due to a firewall update. All instrument teams should verify connectivity following this outage. Week 33 (Aug 12-18) * Ahead has eleven passes during the week, all at 720 kbps, and overall coverage is nominal. * The 169th momentum dump is scheduled for Tuesday, August 13th, with ignition at 13:00 UT. * On Wednesday, August 14th, a DSS-65 track will be shadowing a DSS-55 track from 06:45 to 10:40 UT. Week 34 (Aug 19-25) * Ahead has nine passes during the week, all at 720 kbps, and overall coverage is nominal. Week 35 (Aug 26-Sep 1) * Ahead has nine passes during the week, all at 720 kbps, and overall coverage is nominal. * On Wednesday, August 28th, a DSN network maintenance event is scheduled from 15:00 to 23:000 UT. Week 36 (Sep 2-8) * Ahead has ten passes during the week, all at 720 kbps, and overall coverage is nominal. Other COORDINATED OBSERVATIONS ------------------------------------------------------------------------------- Scheduled activities for Week 31: M Jul 29 (211) T Jul 30 (212) W Jul 31 (213) T Aug 01 (214) F Aug 02 (215) S Aug 03 (216) S Aug 04 (217) ------------------------------------------------------------------------------- Scheduled activities for Week 32: M Aug 05 (218) T Aug 06 (219) W Aug 07 (220) T Aug 08 (221) F Aug 09 (222) S Aug 10 (223) S Aug 11 (224) ------------------------------------------------------------------------------- Scheduled activities for Week 33: M Aug 12 (225) T Aug 13 (226) Ahead: Momentum dump, 13:00 UT W Aug 14 (227) T Aug 15 (228) F Aug 16 (229) S Aug 17 (230) S Aug 18 (231) ------------------------------------------------------------------------------- Scheduled activities for Week 34: M Aug 19 (232) T Aug 20 (233) W Aug 21 (234) T Aug 22 (235) F Aug 23 (236) S Aug 24 (237) S Aug 25 (238) ------------------------------------------------------------------------------- Scheduled activities for Week 35: M Aug 26 (239) T Aug 27 (240) W Aug 28 (241) T Aug 29 (242) F Aug 30 (243) S Aug 31 (244) S Sep 01 (245) ------------------------------------------------------------------------------- Scheduled activities for Week 36: M Sep 02 (246) T Sep 03 (247) W Sep 04 (248) T Sep 05 (249) F Sep 06 (250) S Sep 07 (251) S Sep 08 (252) Upcoming events: 2024: * Sep 25-30 Solar Orbiter Remote Sensing Window 16 * Sep 26-Oct 5 Parker Solar Probe perihelion pass * Oct 2-15 Solar Orbiter Remote Sensing Window 17 * Oct 17-26 Solar Orbiter Remote Sensing Window 18 * Nov 6 Parker Solar Probe Venus flyby, in HI2-A field-of-view * Nov 6 Solar Orbiter full disk mosaic * Dec 24 Solar Obiter off-point and roll for Parker Solar Probe * Dec 20-29 Parker Solar Probe perihelion pass 2025: * Feb 18 Solar Orbiter Venus flyby * Mar 19-27 Parker Solar Probe perihelion pass * Apr 7 Ahead: Mercury transit * Jun 15-24 Parker Solar Probe perihelion pass 2026: * 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=NzM5MDk5IHNoYWVsYS5pLmpvbmVzbWVjaG9sc2t5QE5BU0EuR09WIFNURVJFTy1TQ0ktT1BTIJS%2BfHr7yMrM&c=SIGNOFF ########################################################################