STEREO Weekly Meeting Minutes for 2025-04-15 (Week 16)

ANNOUNCEMENTS
-------------

* Lynn Hutting was accompanied today by Jeff Simmons, who will be
  taking over for her when she retires later this year.

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 15 (Apr 7-13)

* On day 098 (Apr 8), DSN conducted a Mission Network Maintenance
  from 22:00 UT through 06:00 UT. After the maintenance, the MOPs team
  verified the SLE telemetry and command connectivity with DSN.

* The average daily science data return for Ahead was 7.8 Gbits
  during this week.

Week 16 (Apr 14-20)

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

* SECCHI is conducting a special observing campaign on Sunday, April 20, to
  observe the star Betelgeuse.

Week 17 (Apr 21-27)

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

* The 21st Solar Orbiter remote sensing window begins Friday, April 25th.

Week 18 (Apr 28 - May 4)

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

Week 19 (May 5-11)

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

*  The 176th momentum dump is scheduled for Wednesday, May 7th, at 13:00 UT.

Week 20 (May 12-18)

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

* There is a DSN network maintenance event scheduled for Wednesday, May 14, 
  from 17:10 to 21:10 UT.

Week 21 (May19-25)

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



Other



COORDINATED OBSERVATIONS

-------------------------------------------------------------------------------
Scheduled activities for Week 16:

M Apr 14 (104)
T Apr 15 (105)
W Apr 16 (106)
T Apr 17 (107)
F Apr 18 (108)
S Apr 19 (109)
S Apr 20 (110) Betelgeuse campaign, 12:00-14:00

Notes:

* Betelgeuse campaign:
     - HI-2 short-exposure, high-resolution
     - 1 HI-1 image
     - no EUVI, COR1 or COR2

-------------------------------------------------------------------------------
Scheduled activities for Week 17:

M Apr 21 (111)
T Apr 22 (112)
W Apr 23 (113)
T Apr 24 (114)
F Apr 25 (115) Solar Orbiter Remote Sensing Window 21 begins
S Apr 26 (116)
S Apr 27 (117)

Notes:

* Solar Orbiter Remote Sensing Window 21, Apr 25-30             

-------------------------------------------------------------------------------
Scheduled activities for Week 18:

M Apr 28 (118)
T Apr 29 (119)
W Apr 30 (120) Solar Orbiter Remote Sensing Window 21 ends
T May 01 (121)
F May 02 (122)
S May 03 (123)
S May 04 (124)

Notes:

* Solar Orbiter Remote Sensing Window 21, Apr 25-30             

-------------------------------------------------------------------------------
Scheduled activities for Week 19:

M May 05 (125)
T May 06 (126)
W May 07 (127) Ahead: Momentum dump, 13:00 UT
T May 08 (128)
F May 09 (129)
S May 10 (130)
S May 11 (131)

-------------------------------------------------------------------------------
Scheduled activities for Week 20:

M May 12 (132)
T May 13 (133)
W May 14 (134)
T May 15 (135)
F May 16 (136)
S May 17 (137)
S May 18 (138)

-------------------------------------------------------------------------------
Scheduled activities for Week 21:

M May 19 (139)
T May 20 (140)
W May 21 (141)
T May 22 (142)
F May 23 (143)
S May 24 (144)
S May 25 (145)



Upcoming events:

2025:

* 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


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