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STEREO Coordinated Observations Calendar - 2025
Below, please find the archived plans for STEREO operations in the year 2025.
Some unplanned events are also included.
All dates and times are UTC unless otherwise specified. More detailed plans
can be found in the weekly schedules (Ahead,
Behind).
This page is also available as plain text.
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Scheduled activities for Week 01:
M Dec 30 (365)
T Dec 31 (366)
W Jan 01 (001)
T Jan 02 (002)
F Jan 03 (003)
S Jan 04 (004)
S Jan 05 (005)
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Scheduled activities for Week 02:
M Jan 06 (006)
T Jan 07 (007) Ahead: Momentum dump, 18:00 UT
W Jan 08 (008)
T Jan 09 (009)
F Jan 10 (010)
S Jan 11 (011)
S Jan 12 (012)
Notes:
* Brief data loss on Jan 9 due to wildfires disrupting DSN operations.
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Scheduled activities for Week 03:
M Jan 13 (013)
T Jan 14 (014)
W Jan 15 (015) G3 ATLAS observations
T Jan 16 (016)
F Jan 17 (017)
S Jan 18 (018)
S Jan 19 (019)
Notes:
* HI1-A 20-min cadence campaign from 1/15 0000 to 1/21 00:00
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Scheduled activities for Week 04:
M Jan 20 (020) Martin Luther King, Jr. holiday
T Jan 21 (021)
W Jan 22 (022)
T Jan 23 (023)
F Jan 24 (024)
S Jan 25 (025)
S Jan 26 (026)
Notes:
* HI1-A 20-min cadence campaign from 1/15 0000 to 1/21 00:00
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Scheduled activities for Week 05:
M Jan 27 (027)
T Jan 28 (028) Ahead: SECCHI watchdog reset, 13:50:16 UT
W Jan 29 (029)
T Jan 30 (030)
F Jan 31 (031)
S Feb 01 (032)
S Feb 02 (033)
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Scheduled activities for Week 06:
M Feb 03 (034)
T Feb 04 (035)
W Feb 05 (036)
T Feb 06 (037)
F Feb 07 (038)
S Feb 08 (039)
S Feb 09 (040)
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Scheduled activities for Week 07:
M Feb 10 (041)
T Feb 11 (042)
W Feb 12 (043)
T Feb 13 (044)
F Feb 14 (045)
S Feb 15 (046)
S Feb 16 (047)
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Scheduled activities for Week 08:
M Feb 17 (048)
T Feb 18 (049) Solar Orbiter Venus flyby; Ahead: Momentum dump, 20:15 UT
W Feb 19 (050)
T Feb 20 (051)
F Feb 21 (052)
S Feb 22 (053)
S Feb 23 (054) Betelgeuse campaign, 12:00-14:00
Notes:
* Betelgeuse campaign:
- HI-2 short-exposure, high-resolution
- 1 HI-1 image
- no EUVI, COR1 or COR2
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Scheduled activities for Week 09:
M Feb 24 (055)
T Feb 25 (056)
W Feb 26 (057)
T Feb 27 (058)
F Feb 28 (059)
S Mar 01 (060)
S Mar 02 (061) Betelgeuse campaign, 12:00-14:00
Notes:
* Betelgeuse campaign:
- HI-2 short-exposure, high-resolution
- 1 HI-1 image
- no EUVI, COR1 or COR2
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Scheduled activities for Week 10:
M Mar 03 (062)
T Mar 04 (063)
W Mar 05 (064) Ahead: SECCHI stepped calibration roll, 12:35 UT
T Mar 06 (065)
F Mar 07 (066)
S Mar 08 (067)
S Mar 09 (068) 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 11:
M Mar 10 (069)
T Mar 11 (070) Solar Orbiter Remote Sensing Window 19 begins
W Mar 12 (071)
T Mar 13 (072)
F Mar 14 (073)
S Mar 15 (074)
S Mar 16 (075)
Notes:
* Solar Orbiter Remote Sensing Window 19, Mar 11-28
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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
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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
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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
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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)
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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)
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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)
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Scheduled activities for Week 22:
M May 26 (146) Memorial Day holiday
T May 27 (147)
W May 28 (148)
T May 29 (149)
F May 30 (150)
S May 31 (151)
S Jun 01 (152)
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Scheduled activities for Week 23:
M Jun 02 (153)
T Jun 03 (154) Ahead: SECCHI stepped calibration roll, 14:50 UT
W Jun 04 (155)
T Jun 05 (156)
F Jun 06 (157)
S Jun 07 (158)
S Jun 08 (159)
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Scheduled activities for Week 24:
M Jun 09 (160)
T Jun 10 (161)
W Jun 11 (162) Ahead: Battery discharge cycle, 17:40 UT
T Jun 12 (163)
F Jun 13 (164)
S Jun 14 (165)
S Jun 15 (166) PSP perihelion begins
Notes:
* Parker Solar Probe perihelion pass, June 15-22:
- COR2 deep field (36 sec exp/5 min cadence) (Opp+Q w STA; R w Earth), Jun 19-22
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Scheduled activities for Week 25:
M Jun 16 (167)
T Jun 17 (168)
W Jun 18 (169) Ahead: Momentum Dump, 13:00 UT
T Jun 19 (170)
F Jun 20 (171)
S Jun 21 (172)
S Jun 22 (173) PSP perihelion ends
Notes:
* Parker Solar Probe perihelion pass, June 15-22:
- COR2 deep field (36 sec exp/5 min cadence) (Opp+Q w STA; R w Earth), Jun 19-22
-------------------------------------------------------------------------------
Scheduled activities for Week 26:
M Jun 23 (174)
T Jun 24 (175)
W Jun 25 (176)
T Jun 26 (177)
F Jun 27 (178)
S Jun 28 (179)
S Jun 29 (180)
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Scheduled activities for Week 27:
M Jun 30 (181)
T Jul 01 (182)
W Jul 02 (183)
T Jul 03 (184)
F Jul 04 (185) Independence Day holiday
S Jul 05 (186) Data gaps due to watchdog reset.
S Jul 06 (187)
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Scheduled activities for Week 28:
M Jul 07 (188)
T Jul 08 (189)
W Jul 09 (190)
T Jul 10 (191)
F Jul 11 (192)
S Jul 12 (193) Data gaps due to watchdog reset.
S Jul 13 (194)
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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)
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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)
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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) Data gaps due to watchdog reset.
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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)
Notes:
* No daily schedule so default schedule run onboard (cor1sum/12hr), Aug 10-16
-------------------------------------------------------------------------------
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)
Notes:
* No daily schedule so default schedule run onboard (cor1sum/12hr), Aug 10-16
-------------------------------------------------------------------------------
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) Ahead: SECCHI watchdog reset, 07:31-14:00
S Aug 23 (235)
S Aug 24 (236)
-------------------------------------------------------------------------------
Scheduled activities for Week 35:
M Aug 25 (237) Ahead: SECCHI stepped calibration roll, 21:00 UT
T Aug 26 (238)
W Aug 27 (239)
T Aug 28 (240)
F Aug 29 (241)
S Aug 30 (242)
S Aug 31 (243)
-------------------------------------------------------------------------------
Scheduled activities for Week 36:
M Sep 01 (244) Labor Day holiday
T Sep 02 (245)
W Sep 03 (246)
T Sep 04 (247) Ahead: Momentum dump, 19:30 UT
F Sep 05 (248)
S Sep 06 (249) SolO RSW 22 begins
S Sep 07 (250)
Notes:
* Solar Orbiter Remote Sensing Window 22, Sep 6-12
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Scheduled activities for Week 37:
M Sep 08 (251)
T Sep 09 (252)
W Sep 10 (253)
T Sep 11 (254)
F Sep 12 (255) SolO RSW 22 ends
S Sep 13 (256) SolO RSW 23 begins
S Sep 14 (257) PSP perihelion begins
Notes:
* Solar Orbiter Remote Sensing Window 22, Sep 6-12
* Solar Orbiter Remote Sensing Window 23, Sep 13-23
* PSP Perihelion:
-COR2 5-min pB, Sep 14 00:00 - Sep 15 24:00 (STA-PSP Quadrature)
-------------------------------------------------------------------------------
Scheduled activities for Week 38:
M Sep 15 (258)
T Sep 16 (259)
W Sep 17 (260)
T Sep 18 (261)
F Sep 19 (262)
S Sep 20 (263)
S Sep 21 (264)
Notes:
* Solar Orbiter Remote Sensing Window 23, Sep 13-23
* PSP Perihelion:
-COR2 5-min pB, Sep 14 00:00 - Sep 15 24:00 (STA-PSP Quadrature)
-HI1 20-min cadence, Sep 16 00:00 - Sep 18 24:00 (Opp w/ STA)
-COR2 deep field (36 sec exp/5-min cadence), Sep 20 00:00 - Sep 23 24:00,
(Q w/STA & Earth; Support for Solar Orbiter)
-------------------------------------------------------------------------------
Scheduled activities for Week 39:
M Sep 22 (265)
T Sep 23 (266) SolO RSW 23 ends; PSP perihelion ends
W Sep 24 (267) Ahead: SECCHI watchdog reset, 17:52:43 UT
T Sep 25 (268)
F Sep 26 (269)
S Sep 27 (270)
S Sep 28 (271)
Notes:
* Solar Orbiter Remote Sensing Window 23, Sep 13-23
* PSP Perihelion:
-COR2 deep field (36 sec exp/5-min cadence), Sep 20 00:00 - Sep 23 24:00,
(Q w/STA & Earth; Support for Solar Orbiter)
-------------------------------------------------------------------------------
Scheduled activities for Week 40:
M Sep 29 (272)
T Sep 30 (273)
W Oct 01 (274) SolO RSW 24 begins
T Oct 02 (275)
F Oct 03 (276)
S Oct 04 (277)
S Oct 05 (278)
Notes:
* Solar Orbiter Remote Sensing Window 24, Oct 1-16
-------------------------------------------------------------------------------
Scheduled activities for Week 41:
M Oct 06 (279)
T Oct 07 (280)
W Oct 08 (281)
T Oct 09 (282) Ahead: Momentum dump, 20:00 UT
F Oct 10 (283)
S Oct 11 (284)
S Oct 12 (285)
Notes:
* Solar Orbiter Remote Sensing Window 24, Oct 1-16
-------------------------------------------------------------------------------
Scheduled activities for Week 42:
M Oct 13 (286)
T Oct 14 (287)
W Oct 15 (288)
T Oct 16 (289) SolO RSW 24 ends
F Oct 17 (290)
S Oct 18 (291)
S Oct 19 (292)
Notes:
* Solar Orbiter Remote Sensing Window 24, Oct 1-16
-------------------------------------------------------------------------------
Scheduled activities for Week 43:
M Oct 20 (293)
T Oct 21 (294)
W Oct 22 (295)
T Oct 23 (296)
F Oct 24 (297)
S Oct 25 (298)
S Oct 26 (299)
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Scheduled activities for Week 44:
M Oct 27 (300)
T Oct 28 (301)
W Oct 29 (302)
T Oct 30 (303)
F Oct 31 (304)
S Nov 01 (305)
S Nov 02 (306)
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Scheduled activities for Week 45:
M Nov 03 (307)
T Nov 04 (308)
W Nov 05 (309)
T Nov 06 (310)
F Nov 07 (311)
S Nov 08 (312)
S Nov 09 (313)
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Scheduled activities for Week 46:
M Nov 10 (314)
T Nov 11 (315) Veterans Day
W Nov 12 (316) Comet Lemon observing campaign begins
T Nov 13 (317) Ahead: IMU2 EEPROM refresh
F Nov 14 (318)
S Nov 15 (319) Ahead: SECCHI watchdog Reset, 11:50 UT
S Nov 16 (320)
Notes:
* Comet Lemon observing campaign: HI-1 20 min. cadence, no HI-1 or COR-1 beacon, Nov 12-18
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Plans last modified Tuesday, 18-Nov-2025 19:28:05 UTC
Last Revised: Tuesday, 07-Jan-2025 19:15:14 UTC
Responsible NASA Official: ![[email address: Therese.A.Kucera<at>nasa<dot>gov]](/img/kucera_email1.jpg)
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