STEREO Weekly Meeting Minutes for 2025-07-15 (Week 29)

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 28 (July 7-13)

* On day 193 (Jul 12), the SECCHI instrument reset at 15:50:13 UT. The SECCHI
  team reconfigured the instrument to operational mode by 194-06:26 UT. This
  was the 83rd reset of the SECCHI instrument on the Ahead observatory.

* On day 194 (Jul 13), during the DSS-63 support, turbo decoder lock was lost
  briefly at 07:02 UT. This anomaly resulted in the loss of three frames of SSR
  data. The MOPs team repositioned the SSR pointers during the support and
  recovered all the affected data.

* The average daily science data return for Ahead was 7.4 Gbits during this week.

Week 29 (July 14-20)

* Ahead has fourteen passes during the week, all at 720 kbps, and overall coverage 
  is nominal.

Week 30 (July 21-27)

* Ahead has eighteen passes during the week, all at 720 kbps, and overall coverage 
  is nominal.

* The 178th momentum dump is scheduled for Wednesday, July 23rd, with ignition at
  19:05 UT.

Week 31 (July 28-Aug 3)

* Ahead has sixteen passes during the week, all at 720 kbps, and overall coverage 
  is nominal.

* There is a DSN network maintenance event scheduled from Thursday, July 31st, at
  23:00 to Friday, August 1st, at 02:00 UT.

Week 32 (Aug 4-10)

* Ahead has twelve passes during the week, all at 720 kbps, and overall coverage 
  is nominal.

Week 33 (Aug 11-17)

* Ahead has thirteen passes during the week, all at 720 kbps, and overall coverage 
  is nominal.

Week 34 (Aug 18-24)

* Ahead has fifteen passes during the week, all at 720 kbps, and overall coverage 
  is nominal.



Other



COORDINATED OBSERVATIONS

-------------------------------------------------------------------------------
Scheduled activities for Week 29:

M Jul 14 (195)
T Jul 15 (196)
W Jul 16 (197)
T Jul 17 (198)
F Jul 18 (199)
S Jul 19 (200)
S Jul 20 (201)

-------------------------------------------------------------------------------
Scheduled activities for Week 30:

M Jul 21 (202)
T Jul 22 (203)
W Jul 23 (204) Ahead: Momentum dump, 19:05 UT
T Jul 24 (205)
F Jul 25 (206)
S Jul 26 (207)
S Jul 27 (208)

-------------------------------------------------------------------------------
Scheduled activities for Week 31:

M Jul 28 (209)
T Jul 29 (210)
W Jul 30 (211)
T Jul 31 (212)
F Aug 01 (213)
S Aug 02 (214)
S Aug 03 (215)

-------------------------------------------------------------------------------
Scheduled activities for Week 32:

M Aug 04 (216)
T Aug 05 (217)
W Aug 06 (218)
T Aug 07 (219)
F Aug 08 (220)
S Aug 09 (221)
S Aug 10 (222)

-------------------------------------------------------------------------------
Scheduled activities for Week 33:

M Aug 11 (223)
T Aug 12 (224)
W Aug 13 (225)
T Aug 14 (226)
F Aug 15 (227)
S Aug 16 (228)
S Aug 17 (229)

-------------------------------------------------------------------------------
Scheduled activities for Week 34:

M Aug 18 (230)
T Aug 19 (231)
W Aug 20 (232)
T Aug 21 (233)
F Aug 22 (234)
S Aug 23 (235)
S Aug 24 (236)



Upcoming events:

2025:

* 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 1-6               Solar Orbiter Remote Sensing Window 24
* Dec 9-17              Parker Solar Probe perihelion pass

2026:
* Feb 12-27             Solar Orbiter Remote Sensing Window 25
* Feb 28-Mar 10         Solar Orbiter Remote Sensing Window 26
* Mar 8-16              Parker Solar Probe perihelion pass
* Mar 29-Apr 3          Solar Orbiter Remote Sensing Window 27
* Jun 4-12              Parker Solar Probe perihelion pass
* Aug 4-14              Solar Orbiter Remote Sensing Window 28
* Aug 15-25             Solar Orbiter Remote Sensing Window 29
* Sep 1-9               Parker Solar Probe perihelion pass
* Sep 11-21             Solar Orbiter Remote Sensing Window 30
* 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


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