STEREO Coordinated Observations Calendar

Archived plans: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025

Below, please find the current plans for STEREO operations. All dates and times are UTC unless otherwise specified. More detailed plans can be found in the weekly schedules (Ahead, Behind). Other planning resources are also provided. This page is also available as plain text.

Contact information for coordinated observation requests can be found on the Solar JOP guidelines page.

These pages gives information about possible STEREO support for Parker Solar Probe and Solar Orbiter. Here is also Information about STEREO-A close approach to Earth, August 2023

Links to planning and scheduling pages for other missions: SOHO, Hinode, NSO, VLA, EISCAT, Max Millenium, ISTP Planning.

Information about reduced science operations during the solar conjunction period between August 2014 and November 2015 can be found here.

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Scheduled activities for Week 51:

M Dec 15 (349)  
T Dec 16 (350)  
W Dec 17 (351)
T Dec 18 (352)  
F Dec 19 (353)  
S Dec 20 (354)  
S Dec 21 (355)  

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Scheduled activities for Week 52:

M Dec 22 (356)  
T Dec 23 (357)  
W Dec 24 (358)  
T Dec 25 (359)  Christmas Day
F Dec 26 (360)  
S Dec 27 (361)  
S Dec 28 (362)  

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Scheduled activities for Week 01:

M Dec 29 (363) M2M Space Weather campaign begins
T Dec 30 (364) Ahead: Momentum dump, 13:30 UT
W Dec 31 (365)
T Jan 01 (001) New Year's Day
F Jan 02 (002)
S Jan 03 (003)
S Jan 04 (004)

Notes:

* NASA Moon-to-Mars Space Weather campaign, Dec 29 - Jan 21

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Scheduled activities for Week 02:

M Jan 05 (005)
T Jan 06 (006)
W Jan 07 (007)
T Jan 08 (008)
F Jan 09 (009)
S Jan 10 (010)
S Jan 11 (011)

Notes:

* NASA Moon-to-Mars Space Weather campaign, Dec 29 - Jan 21

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Scheduled activities for Week 03:

M Jan 12 (012)
T Jan 13 (013)
W Jan 14 (014)
T Jan 15 (015)
F Jan 16 (016)
S Jan 17 (017)
S Jan 18 (018)

Notes:

* NASA Moon-to-Mars Space Weather campaign, Dec 29 - Jan 21

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Scheduled activities for Week 04:

M Jan 19 (019)
T Jan 20 (020)
W Jan 21 (021)
T Jan 22 (022)
F Jan 23 (023)
S Jan 24 (024)
S Jan 25 (025)

Notes:

* NASA Moon-to-Mars Space Weather campaign, Dec 29 - Jan 21

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Upcoming events:

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

Plans last modified Tuesday, 16-Dec-2025 18:21:16 UTC

Last Revised: Tuesday, 16-Sep-2025 17:56:56 UTC
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