⚠️ Important Notice: The STEREO Science Center is expecting to experience service interruptions the week of March 9. Please see click here for more details.

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, 2026

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 11:

M Mar 09 (068)
T Mar 10 (069) Solar Orbiter Remote Sensing Window 26 ends
W Mar 11 (070)
T Mar 12 (071)
F Mar 13 (072)
S Mar 14 (073)
S Mar 15 (074)

Notes:

* Solar Orbiter Remote Sensing Window 26, Feb 28 - Mar 10
* Parker Solar Probe Perihelion pass, Mar 8-16
    - HI1 20min + COR2 15-min pB, Mar 3-12  (tentative, as downlink permits)
    - COR2 Deep Field (36-sec, 5-min), Mar 13-15  (as downlink permits)

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Scheduled activities for Week 12:

M Mar 16 (075)
T Mar 17 (076)
W Mar 18 (077)
T Mar 19 (078)
F Mar 20 (079)
S Mar 21 (080)
S Mar 22 (081)

Notes:

* Parker Solar Probe Perihelion pass, Mar 8-16

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Scheduled activities for Week 13:

M Mar 23 (082)
T Mar 24 (083) Ahead: Momentum dump, 14:00 UT
W Mar 25 (084)
T Mar 26 (085)
F Mar 27 (086)
S Mar 28 (087)
S Mar 29 (088) Solar Orbiter Remote Sensing Window 27 begins

Notes:

* Solar Orbiter Remote Sensing Window 27, Mar 29-Apr 3

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Scheduled activities for Week 14:

M Mar 30 (089)
T Mar 31 (090)
W Apr 01 (091)  Artemis II launch window begins
T Apr 02 (092)
F Apr 03 (093)
S Apr 04 (094)
S Apr 05 (095)

Notes:

* Solar Orbiter Remote Sensing Window 27, Mar 29-Apr 3
* Artemis II launch window, Apr 1-10

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Scheduled activities for Week 15:

M Apr 06 (096)
T Apr 07 (097)
W Apr 08 (098)
T Apr 09 (099)
F Apr 10 (100) Artemis II launch window ends
S Apr 11 (101)
S Apr 12 (102)

Notes:

* Artemis II launch window, Apr 1-10

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Scheduled activities for Week 16:

M Apr 13 (103)
T Apr 14 (104)
W Apr 15 (105)
T Apr 16 (106)
F Apr 17 (107)
S Apr 18 (108)
S Apr 19 (109)

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Upcoming events:

2026:

* 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, 10-Mar-2026 18:13:47 UTC

Last Revised: Tuesday, 06-Jan-2026 21:38:40 UTC
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