STEREO Weekly Meeting Minutes for 2013-01-03 (Week 1) ANNOUNCEMENTS ------------- None INSTRUMENT and SPACECRAFT STATUS -------------------------------- * All subsystems on both spacecraft are nominal. DISCUSSION AND OPERATIONS CONSTRAINTS ------------------------------------- Week 51 (Dec 17-23) * On day 352 (Dec 17), during the DSS-14 support for Behind, turbo decoder lock was lost intermittently beginning at 1937z through 1941z. This anomaly resulted in the loss of several minutes (14550 frames) of SSR data. See DR #G113525 for more information. * On day 353 (Dec 18), during the DSS-25 support for Ahead, the transmitter tripped offline at 1457z and was brought back online at 1518z. This anomaly resulted in the loss of 926 frames of SSR data. See DR #G113529 for more information. * On day 353 (Dec 18), the 24th SECCHI stepped calibration for Ahead was executed at 1015z for the midpoint in the orbit. * On day 355 (Dec 20), the 47th momentum dump for Behind was executed successfully at 2100Z, which imparted a delta V of 0.084 m/sec. * On day 357 (Dec 22), during the DSS-65 support for Ahead, the receiver dropped lock for no apparent reason beginning at 0741z through 0745z. Also, the turbo decoder lock was lost intermittently beginning at 0829z through 0831z. These anomalies resulted in the loss of several minutes (2629 frames) of SSR data. See DRs #M107031 and #N108583 for more information. * On day 357 (Dec 22), during the DSS-14 support for Behind, telemetry was not available in the MOC from 2106z through 2225z due the SLE TLM Bind for VC7 aborting. All SSR data was recovered. See DR #N108584 for more information. * On day 358 (Dec 23), during the DSS-55 support for Ahead, turbo decoder lock was lost briefly at 0707z. This anomaly resulted in the loss of one frame of SSR data. See DR #N108586 for more information. * On day 358 (Dec 23), the Ahead MOC telemetry processing and data product generation were completed for day 351 through 354. The anomaly occurred during the previous week because the archive server RAID array had a disk drive that reached full capacity, which stopped telemetry file ingestion. * On day 352 (Dec 17), the SSR science partitions on Ahead filled as follows: SWAVES (Part 13) reached 100% full at 0818z for 6.8 hours. IMPACT (Part 15) reached 95% full at 0758z for 7.1 hours. PLASTIC(Part 17) reached 95% full at 1224z for 2.7 hours. The primary cause was the accumulated shortage of track time throughout the week. * On day 352 (Dec 17), the SSR science partitions on Behind filled as follows: SWAVES (Part 13) reached 100% full at 1531z for 4.6 hours. IMPACT (Part 15) reached 95% full at 1504z for 5.0 hours. PLASTIC(Part 17) reached 95% full at 1716z for 2.8 hours. The primary cause was the accumulated shortage of track time throughout the week. * On day 353 (Dec 18), the SSR science partitions filled on Ahead as follows: SWAVES (Part 13) reached 100% full at 0522z for 9.7 hours. IMPACT (Part 15) reached 95% full at 0406z for 11.1 hours. PLASTIC(Part 17) reached 95% full at 0709z for 7.9 hours. The primary cause was the accumulated shortage of track time throughout the week. * On day 354 (Dec 19), the SSR science partitions filled on Ahead as follows: SWAVES (Part 13) reached 100% full at 0323z for 11.3 hours. SWAVES (Part 13) reached 100% full at 2020z for 2.0 hours. IMPACT (Part 15) reached 95% full at 0210z for 12.7 hours. IMPACT (Part 15) reached 95% full at 2005z for 2.2 hours. PLASTIC(Part 17) reached 95% full at 0449z for 9.9 hours. PLASTIC(Part 17) reached 95% full at 2143z for 0.6 hours. The primary cause was the accumulated shortage of track time throughout the week. * On day 355 (Dec 20), the SSR science partitions filled on Ahead as follows: SWAVES (Part 13) reached 100% full at 1145z for 7.2 hours. IMPACT (Part 15) reached 95% full at 1044z for 8.2 hours. PLASTIC(Part 17) reached 95% full at 1328z for 5.4 hours. The primary cause was the accumulated shortage of track time throughout the week. * On day 356 (Dec 21), the SSR science partitions filled on Ahead as follows: SWAVES (Part 13) reached 100% full at 0250z for 11.8 hours. IMPACT (Part 15) reached 95% full at 0158z for 12.7 hours. PLASTIC(Part 17) reached 95% full at 0344z for 10.9 hours. SECCHI (Part 19) reached 100% full at 1305z for 1.6 hours. The primary cause was the accumulated shortage of track time throughout the week. * The average daily SSR playback volume for Ahead was 3.6 Gbits and for Behind was 3.8 Gbits during this week. Week 52 (Dec 24-30) * On day 360 (Dec 25), during the DSS 65 track for Ahead, turbo decoder lock was lost intermittently beginning at 1037z through 1123z due to heavy rain at the station. This anomaly resulted in the loss of several minutes (27666 frames) of SSR data. See DR #M107035 for more information * On day 360 (Dec 25), during the DSS 63 track for Behind, turbo decoder lock was lost intermittently beginning at 1718z through 1745z due to heavy rain at the station. This anomaly resulted in the loss of several minutes (28202 frames) of SSR data. See DR #M107038 for more information. * On day 361 (Dec 26), during the DSS-65 support for Ahead, turbo decoder lock was lost intermittently beginning at 0716z through 0841z. This anomaly resulted in the loss of 156 frames of SSR data. See DR #N108585 for more information. * On day 361 (Dec 26), during the DSS-25 support for Ahead, turbo decoder lock was lost briefly at 1415z and again at 1503z. This anomaly resulted in the loss of five frames of SSR data. See DR #N108587 for more information. * On day 365 (Dec 30), during the DSS 65 track for Behind, turbo decoder lock was lost intermittently beginning at 1046z through 1719z. This anomaly resulted in the loss of 21 frames of SSR data. See DR #N108588 for more information. * The average daily SSR playback volume for Ahead was 3.8 Gbits and for Behind was 4.0 GBits during this week. Week 01 (Dec 31-Jan 6, 2013) * Ahead has 12 passes during the week, and overall coverage is short 19.2 hours. There are no 70 meter passes during the week. The station 65 pass on Monday, Dec 31, and the station 26 passes on Tuesday, Jan 1, and Thursday, Jan 3, will be carried out at 240 kbps. ESA New Norcia passes are scheduled for Tuesday, Jan 1, and Thursday, Jan 3. * Behind has 10 passes during the week, and overall coverage is short 16.9 hours. There are 70 meter passes on Wednesday, Jan 2, and Saturday, Jan 5, both using station 63. The station 26 pass on Friday, Jan 4, will be carried out at 160 kbps. Week 02 (Jan 7-13) * HGA calibration maneuvers will be carried out on Ahead at 18:00 UT on Wednesday, Jan 9, and on Behind on Thursday, Jan 10, at 21:00 UT. * The 53rd momentum dump on Ahead is Friday Jan 11 at 18:00 UT. * Ahead has 13 passes during the week, and overall coverage is short 5.7 hours. There is a 70 meter pass on Thursday, Jan 10 (D63). The station 26 pass on Tuesday Jan 8, will be carried out at 240 kbps. ESA New Norcia passes will be carried out on Thursday, Jan 10, and Saturday, Jan 12. * Behind has 10 passes during the week, and overall coverage is short 19.6 hours. There are 70 meter passes on Tuesday, Jan 8, Friday, Jan 11, and Sunday Jan 13. all using station 63. The station 24 pass on Saturday, Jan 12, will be carried out at 160 kbps. ESA New Norcia passes will be carried out on Tuesday, Jan 8, and Saturday, Jan 12. * Load MOPS Macro Release 1.1.15 to RAM on Tuesday for Ahead and Monday for Behind. This is to extend the housekeeping SSR playback by four minutes to increase the amount of G&C Black Box data downloaded. Week 03 (Jan 14-20) * Ahead has 10 passes during the week, and overall coverage is short 29.4 hours. There are no 70 meter passes during the week. * Behind has 11 passes during the week, and overall coverage is short 11.6 hours (mostly Wed-Sun). There are four 70 m passes, all on D63: Monday, Tuesday, Wednesday, and Thursday (Jan 14-17). The station 45 pass on Saturday (Jan 19) and the station 15 pass on Sunday (Jan 20) will be carried out at 160 kbps. ESA passes are scheduled for Wednesday and Thursday, Jan 16-17. Week 04 (Jan 21-27) * Ahead has 11 passes during the week, and overall coverage is short 10.25 hours. No 70 meter passes are scheduled during the week. The station 25 pass on Tuesday, Jan 22, and the station 26 passes on Saturday and Sunday, Jan 26-27, will all be carried out at 240 kbps. ESA New Norcia passes are scheduled for Tuesday, Jan 22, and Thursday, Jan 24. * Behind has 13 passes during the week, and overall coverage is short 9.1 hours. 70 meter passes are scheduled using station 26 each day between Monday to Friday, Jan 21-25. The station 45 pass on Friday, Jan 25, and the station 26 pass on Saturday, Jan 26, will both be carried out at 160 kbps. ESA New Norcia passes are scheduled for Tuesday, Wednesday, Jan 22-23, Saturday and Sunday, Jan 26-27. * MOPS macro release 1.1.15 to EEProm on Monday for both Spacecraft. Week 05 (Jan 28-Feb 3) * The 48th momentum dump on Behind is scheduled for Monday, Jan 28, with ignition at 17:15 UT. * Ahead has 13 passes during the week, and overall coverage is short 13.4 hours. A 70 meter pass is scheduled for Sunday, Feb 3 (D14 at 720 kbps). The station 26 passes on Tuesday, Jan 29, Wednesday, Jan 30, and Friday, Feb 1, and the station 34 pass on Thursday, Jan 31, will all be carried out at 240 kbps. ESA New Norcia passes on Monday, Jan 28, and Wednesday, Jan 30. * Behind has 11 passes during the week, and overall coverage is short 4 hours. 70 meter passes are scheduled for Monday, Jan 28 (D63), Wednesday, Jan 30 (D63), Thursday, Jan 31 (D63), Friday, Feb 1 (D14), Saturday, Feb 2 (D14), and Sunday, Feb 3 (D63 at 720 kbps). New Norcia supports on Wednesday, Thursday, and Friday, Jan 30-Feb 1. Week 06 (Feb 4-10) * Ahead has 11 passes during the week, and overall coverage is even. 70 meter passes are scheduled for Tuesday, Feb 5 (D63), Friday, Feb 8 (D14), and Saturday, Feb 9 (D14 at 720 kbps). The station 26 pass on Thursday, Feb 7, will be carried out at 240 kbps. ESA New Norcia supports on Wednesday and Thursday, Feb 6-7. * Behind has 10 passes during the week, and overall coverage is short 5 hours. 70 meter passes are scheduled for Monday, Feb 4, Tuesday, Feb 5, and Thursday, Feb 7, all using station 63. The station 65 pass on Wednesday, Feb 6, and the station 26 passes on Friday, Feb 8, and Sunday, Feb 10, will all be carried out at 160 kbps. ESA New Norcia supports on Thursday and Friday, Feb 7-8. Week 07 (Feb 11-17) * Ahead has 10 passes during the week, and overall coverage is short by 5.5 hours. 70 meter passes are scheduled for Tuesday Feb. 12 (D14) Friday Feb 15 (D14 at 720 kbps), Saturday, Feb 16 (D63) and Sunday, Feb 17 (DS14 at 720 kbps). The Station 26 pass on Wednesday, Feb. 26 will be carried out at 240 kbps. ESA New Norcia support on Tuesday and Wednesday, Feb 12-13. * Behind has 12 passes during the week, and overall coverage will be short by 6.5 hours. 70 meter passes on Monday, Feb 11 (DS14), Tuesday, Feb 12 (DS63), and Friday, Feb 15 (DS63 at 720 kbps). The D26 pass on wednesday Feb. 17 will be at 240 kbps. ESA New Norcia support on Thursday, Feb 14 and Saturday, Feb 16 and ESA Cebreros on Thursday, Feb 14. Week 08 (Feb 18-24) * 54th momentum dump for Ahead Monday Feb 18 at 19:00 UT. * Ahead has 9 passes, and overall coverage is even. 70 meter passes Tuesday, Feb 19 (DS63 at 720 kbps) and Wednesday-Saturday (DS14), Feb. 20-13. D26 passes on Monday, Feb 18 and Sunday, Feb 24 at 240 kbps. * Behind has 8 tracks, and overall coverage is short 13.2 hours. 70 meter passes on Tuesday, Feb 19, Thursday, Feb 21, and Friday, Feb 22 (all on D63) and Sunday (D14 at 720 kbps). The D55 pass on Monday, Feb. 18 and D34 pass on Sunday Feb. 14 are at 160 kbps. Other * In response to questions from the instrument teams: Status of CR version 4: It will be implemented. They are just waiting for proper approvals. Dan will check on that. When SSR science partition 13, 15, 17, or 19 is full autonomy rule 239 is triggered during science playbacks and pointers are moved for all partitions to free space. This is regardless of antenna size or download rate. COORDINATED OBSERVATIONS ------------------------------------------------------------------------------- Scheduled activities for Week 01: M Dec 31 (366) T Jan 01 (001) New Year W Jan 02 (002) T Jan 03 (003) F Jan 04 (004) S Jan 05 (005) S Jan 06 (006) Notes: * Significant telemetry shortfalls for both spacecraft are expected during the week. ------------------------------------------------------------------------------- Scheduled activities for Week 02: M Jan 07 (007) T Jan 08 (008) W Jan 09 (009) T Jan 10 (010) F Jan 11 (011) S Jan 12 (012) S Jan 13 (013) Notes: * Significant telemetry shortfalls for both spacecraft are expected during the week. ------------------------------------------------------------------------------- Scheduled activities for Week 03: M Jan 14 (014) T Jan 15 (015) W Jan 16 (016) T Jan 17 (017) F Jan 18 (018) S Jan 19 (019) S Jan 20 (020) Notes: * Significant telemetry shortfalls for both spacecraft are expected during the week. ------------------------------------------------------------------------------- Scheduled activities for Week 04: M Jan 21 (021) T Jan 22 (022) W Jan 23 (023) T Jan 24 (024) F Jan 25 (025) S Jan 26 (026) S Jan 27 (027) Notes: * Significant telemetry shortfalls for both spacecraft are expected during the week. ------------------------------------------------------------------------------- Scheduled activities for Week 05: M Jan 28 (028) T Jan 29 (029) W Jan 30 (030) T Jan 31 (031) F Feb 01 (032) S Feb 02 (033) S Feb 03 (034) Notes: * Significant telemetry shortfalls for both spacecraft are expected during the week. ------------------------------------------------------------------------------- Scheduled activities for Week 06: M Feb 04 (035) T Feb 05 (036) W Feb 06 (037) T Feb 07 (038) F Feb 08 (039) S Feb 09 (040) S Feb 10 (041) Notes: * Significant telemetry shortfalls for Behind are expected during the week. ------------------------------------------------------------------------------- Scheduled activities for Week 07: M Feb 11 (042) T Feb 12 (043) W Feb 13 (044) T Feb 14 (045) F Feb 15 (046) S Feb 16 (047) S Feb 17 (048) Notes: * Significant telemetry shortfalls for both spacecraft are expected during the week. ------------------------------------------------------------------------------- Scheduled activities for Week 08: M Feb 18 (049) Ahead: 54th momentum dump T Feb 19 (050) W Feb 20 (051) T Feb 21 (052) F Feb 22 (053) S Feb 23 (054) S Feb 24 (055) Notes: * Significant telemetry shortfalls for Behind are expected during the week. ------------------------------------------------------------------------------ Upcoming events: 2013: * May 3 Ahead: Switch downlink rate to 120 kbps * Dec 12 Ahead: Mercury transit 2014: * Jan 20 Behind: End use of 480 kbps on 70 m DSN subnet * Apr 21 Behind: Resume use of 480 kbps on 70 m DSN subnet * Apr 29 Behind: Mercury transit * Oct 15 Behind: End use of 480 kbps on 70 m DSN subnet 2015: * Feb DAWN - Ceres arrival * Jan 20 - Mar 28 (TBC) Behind: Spacecraft behind Sun * Mar 17 - Jul 14 (TBC) Ahead: Spacecraft behind Sun * Jul 2 Behind: Resume use of 480 kbps on 70 m DSN subnet * Aug 25 - Oct 19 (TBC) Behind: Spacecraft behind Sun * Sep 25 Behind: End use of 480 kbps on 70 m DSN subnet * Jul DAWN - End of nominal mission 2016: * Apr 3 Behind: Resume use of 480 kbps on 70 m DSN subnet * Jul Juno arrival at Jupiter 2017: * Jul 11 Ahead: Switch downlink rate to 160 kbps * Jul 22 Behind: Switch downlink rate to 160 kbps 2018: * Mar 5 Ahead: Mercury transit