STEREO Weekly Meeting Minutes for 2025-03-18 (Week 12)

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 11 (Mar 10-16)

* On day 072 (Mar 13), DSN conducted Mission Network Maintenance
  from 15:00 through 23:00 UT. After the maintenance, the MOPs team
  verified the SLE telemetry and command connectivity with DSN.

* On day 075 (Mar 16), during the DSS-65 support, the beginning of
  track was delayed by four minutes, due to a receiver issue. This
  anomaly resulted in the loss of four minutes of real-time
  telemetry, tracking, and SSR data. The MOPs team repositioned the
  SSR pointers during the track and recovered all of the affected
  data. See DR #M117784 for more information.

* The average daily science data return for Ahead was 8.2 Gbits
  during this week.
 
Week 12 (Mar 17-23)

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

* SECCHI is observing the Parker Solar Probe perihelion beginning Tuesday,
  March 18. 

Week 13 (Mar 24-30)

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

* Solar Orbiter Remote Sensing Window 20 begins on Saturday, March 29.

Week 14 (Mar 31 - Apr 6)

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

* The 175th momentum dump is scheduled for Tuesday, April 1, at 18:15 UT.

* On Wednesday, April 2, an ESA New Norcia track is scheduled from 02:05
  to 05:35 UT.

Week 15 (Apr 7-13)

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

* The Ahead spacecraft will observe a transit of Mercury on Monday,
  April 7.

* There is a DSN network maintenance event scheduled for Tuesday,
  April 8 through Wednesday, April 9.

Week 16 (Apr 14-20)

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

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.


Other



COORDINATED OBSERVATIONS

-------------------------------------------------------------------------------
Scheduled activities for Week 12:

M Mar 17 (076)
T Mar 18 (077) PSP perihelion begins
W Mar 19 (078)
T Mar 20 (079)
F Mar 21 (080)
S Mar 22 (081)
S Mar 23 (082)

Notes:

* Solar Orbiter Remote Sensing Window 19, Mar 11-28
* Parker Solar Probe perihelion Mar 19-27: 
     - HI1 20-min cadence (Radial w STA), Mar 18-20
     - COR2 deep field (36 sec exp/5 min cadence) (Q+R w STA), Mar 21-24

-------------------------------------------------------------------------------
Scheduled activities for Week 13:

M Mar 24 (083)
T Mar 25 (084)
W Mar 26 (085)
T Mar 27 (086) PSP perihelion ends
F Mar 28 (087) Solar Orbiter Remote Sensing Window 19 ends
S Mar 29 (088) Solar Orbiter Remote Sensing Window 20 begins
S Mar 30 (089) Betelgeuse campaign, 12:00-14:00

Notes:

* Solar Orbiter Remote Sensing Window 19, Mar 11-28
* Parker Solar Probe perihelion Mar 19-27: 
     - HI1 20-min cadence (Radial w STA), Mar 18-20
     - COR2 deep field (36 sec exp/5 min cadence) (Q+R w STA), Mar 21-24
* Solar Orbiter Remote Sensing Window 20, Mar 29-Apr 6
* Betelgeuse campaign:
     - HI-2 short-exposure, high-resolution
     - 1 HI-1 image
     - no EUVI, COR1 or COR2

-------------------------------------------------------------------------------
Scheduled activities for Week 14:

M Mar 31 (090)
T Apr 01 (091) Ahead: Momentum dump, 18:15 UT
W Apr 02 (092)
T Apr 03 (093)
F Apr 04 (094)
S Apr 05 (095)
S Apr 06 (096) 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 15:

M Apr 07 (097) Ahead: Mercury transit
T Apr 08 (098)
W Apr 09 (099)
T Apr 10 (100)
F Apr 11 (101)
S Apr 12 (102)
S Apr 13 (103) 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 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             



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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