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Information
about STEREO-A close approach to Earth, August 2023
STEREO Coordinated Observations Calendar - 2021
Below, please find the archived plans for STEREO operations in the year 2021.
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 Jan 04 (004)
T Jan 05 (005)
W Jan 06 (006)
T Jan 07 (007)
F Jan 08 (008)
S Jan 09 (009)
S Jan 10 (010)
-------------------------------------------------------------------------------
Scheduled activities for Week 02:
M Jan 11 (011)
T Jan 12 (012)
W Jan 13 (013) Start of Parker Solar Probe perihelion pass
T Jan 14 (014)
F Jan 15 (015) Ahead: EUVI 171A Deep Field, COR2 deep field
S Jan 16 (016) Ahead: EUVI 171A Deep Field, COR2 deep field
S Jan 17 (017) Ahead: EUVI 171A Deep Field, COR2 pB series only
Notes:
* Parker Solar Probe perihelion pass, Jan 13-23.
-------------------------------------------------------------------------------
Scheduled activities for Week 03:
M Jan 18 (018) Martin Luther King Day
Ahead: EUVI 171A Deep Field, COR2 pB series only
T Jan 19 (019) Ahead: Momentum dump, 16:30 UT
W Jan 20 (020)
T Jan 21 (021)
F Jan 22 (022)
S Jan 23 (023) Ahead: Return-to-service pass with station 43
End of Parker Solar Probe perihelion pass
S Jan 24 (024)
Notes:
* Parker Solar Probe perihelion pass, Jan 13-23.
-------------------------------------------------------------------------------
Scheduled activities for Week 04:
M Jan 25 (025)
T Jan 26 (026)
W Jan 27 (027)
T Jan 28 (028)
F Jan 29 (029)
S Jan 30 (030)
S Jan 31 (031)
-------------------------------------------------------------------------------
Scheduled activities for Week 05:
M Feb 01 (032) Start of Solar Orbiter Remote Sensor Synoptics
T Feb 02 (033)
W Feb 03 (034)
T Feb 04 (035)
F Feb 05 (036)
S Feb 06 (037)
S Feb 07 (038)
Notes:
* Solar Orbiter Remote Sensor Synoptics, Feb 1-19
-------------------------------------------------------------------------------
Scheduled activities for Week 06:
M Feb 08 (039)
T Feb 09 (040)
W Feb 10 (041)
T Feb 11 (042)
F Feb 12 (043)
S Feb 13 (044)
S Feb 14 (045)
Notes:
* Solar Orbiter Remote Sensor Synoptics, Feb 1-19
-------------------------------------------------------------------------------
Scheduled activities for Week 07:
M Feb 15 (046) Ahead: Momentum dump, 19:00 UT
T Feb 16 (047)
W Feb 17 (048)
T Feb 18 (049)
F Feb 19 (050) End of Solar Orbiter Remote Sensor Synoptics
S Feb 20 (051) Parker Solar Probe Venus flyby
Start of Solar Orbiter Remote Sensor Checkout Window 2
S Feb 21 (052)
Notes:
* Solar Orbiter Remote Sensor Synoptics, Feb 1-19
* Solar Orbiter Remote Sensor Checkout Window 2, Feb 20-25.
-------------------------------------------------------------------------------
Scheduled activities for Week 08:
M Feb 22 (053)
T Feb 23 (054)
W Feb 24 (055)
T Feb 25 (056) End of Solar Orbiter Remote Sensor Checkout Window 2
F Feb 26 (057)
S Feb 27 (058)
S Feb 28 (059)
-------------------------------------------------------------------------------
Scheduled activities for Week 09:
M Mar 01 (060)
T Mar 02 (061)
W Mar 03 (062)
T Mar 04 (063)
F Mar 05 (064)
S Mar 06 (065)
S Mar 07 (066)
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Scheduled activities for Week 10:
M Mar 08 (067)
T Mar 09 (068)
W Mar 10 (069)
T Mar 11 (070)
F Mar 12 (071)
S Mar 13 (072)
S Mar 14 (073) Start of daylight savings time in US
-------------------------------------------------------------------------------
Scheduled activities for Week 11:
M Mar 15 (074)
T Mar 16 (075)
W Mar 17 (076)
T Mar 18 (077) Ahead: Stepped calibration roll, 13:30 UT
F Mar 19 (078)
S Mar 20 (079)
S Mar 21 (080) Start of Solar Orbiter Remote Sensor Checkout Window 3
Notes:
* Solar Orbiter Remote Sensor Checkout Window 3, Mar 21-24.
-------------------------------------------------------------------------------
Scheduled activities for Week 12:
M Mar 22 (081)
T Mar 23 (082)
W Mar 24 (083) End of Solar Orbiter Remote Sensor Checkout Window 3
Ahead: Battery discharge maintenance, 20 UT
T Mar 25 (084)
F Mar 26 (085)
S Mar 27 (086)
S Mar 28 (087)
Notes:
* Solar Orbiter Remote Sensor Checkout Window 3, Mar 21-24.
-------------------------------------------------------------------------------
Scheduled activities for Week 13:
M Mar 29 (088)
T Mar 30 (089)
W Mar 31 (090) Ahead: Momentum dump, 16:30 UT
T Apr 01 (091)
F Apr 02 (092)
S Apr 03 (093)
S Apr 04 (094)
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Scheduled activities for Week 14:
M Apr 05 (095)
T Apr 06 (096)
W Apr 07 (097)
T Apr 08 (098)
F Apr 09 (099)
S Apr 10 (100)
S Apr 11 (101)
-------------------------------------------------------------------------------
Scheduled activities for Week 15:
M Apr 12 (102)
T Apr 13 (103)
W Apr 14 (104)
T Apr 15 (105)
F Apr 16 (106)
S Apr 17 (107)
S Apr 18 (108)
-------------------------------------------------------------------------------
Scheduled activities for Week 16:
M Apr 19 (109)
T Apr 20 (110)
W Apr 21 (111) Start of Solar Orbiter Remote Sensor Synoptics
T Apr 22 (112)
F Apr 23 (113)
S Apr 24 (114)
S Apr 25 (115) Start of Parker Solar Probe perihelion pass
Ahead: COR2 pB campaign
Notes:
* Solar Orbiter Remote Sensor Synoptics, Apr 21-28.
* Parker Solar Probe perihelion pass, Apr 25-May 4.
-------------------------------------------------------------------------------
Scheduled activities for Week 17:
M Apr 26 (116) Ahead: COR2 pB campaign
T Apr 27 (117) Ahead: COR2 pB campaign
Ahead: Return-to-service track with station 14.
W Apr 28 (118) Ahead: COR2 pB campaign, 0-6 UT
Ahead: EUVI 171+COR2 Deep Field campaign, 6-24 UT
End of Solar Orbiter Remote Sensor Synoptics
T Apr 29 (119) Ahead: EUVI 171+COR2 Deep Field campaign
F Apr 30 (120) Ahead: EUVI 171+COR2 Deep Field campaign
S May 01 (121) Ahead: EUVI 171+COR2 Deep Field campaign
S May 02 (122)
Notes:
* Solar Orbiter Remote Sensor Synoptics, Apr 21-28.
* Parker Solar Probe perihelion pass, Apr 25-May 4.
-------------------------------------------------------------------------------
Scheduled activities for Week 18:
M May 03 (123)
T May 04 (124) End of Parker Solar Probe perihelion pass
W May 05 (125)
T May 06 (126) Ahead: Momentum dump, 20:30 UT
F May 07 (127)
S May 08 (128)
S May 09 (129)
Notes:
* Parker Solar Probe perihelion pass, Apr 25-May 4.
-------------------------------------------------------------------------------
Scheduled activities for Week 19:
M May 10 (130)
T May 11 (131)
W May 12 (132) Ahead: Return-to-service track with station 24
T May 13 (133)
F May 14 (134)
S May 15 (135)
S May 16 (136)
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Scheduled activities for Week 20:
M May 17 (137)
T May 18 (138)
W May 19 (139) Ahead: 180 degree roll to observe Betelgeuse, 18-20 UT
Ahead: SECCHI watchdog reset 08:38-22:33 UT
T May 20 (140) Ahead: SECCHI operations resume 00:00 UT
F May 21 (141)
S May 22 (142)
S May 23 (143)
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Scheduled activities for Week 21:
M May 24 (144)
T May 25 (145)
W May 26 (146) Ahead: 180 degree roll to observe Betelgeuse, 20-22 UT
T May 27 (147)
F May 28 (148)
S May 29 (149)
S May 30 (150)
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Scheduled activities for Week 22:
M May 31 (151) Memorial Day
T Jun 01 (152) Ahead: 180 degree roll to observe Betelgeuse, 16-18 UT
W Jun 02 (153)
T Jun 03 (154)
F Jun 04 (155)
S Jun 05 (156)
S Jun 06 (157)
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Scheduled activities for Week 23:
M Jun 07 (158)
T Jun 08 (159)
W Jun 09 (160) Ahead: SECCHI stepped calibration roll, 16:50 UT
T Jun 10 (161) Ahead: SECCHI reboot, 15:36-18:00 UT
F Jun 11 (162) Ahead: 180 degree roll to observe Betelgeuse, 18-20 UT
S Jun 12 (163)
S Jun 13 (164)
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Scheduled activities for Week 24:
M Jun 14 (165)
T Jun 15 (166) Ahead: Momentum dump, 15 UT
W Jun 16 (167)
T Jun 17 (168)
F Jun 18 (169)
S Jun 19 (170)
S Jun 20 (171)
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Scheduled activities for Week 25:
M Jun 21 (172)
T Jun 22 (173)
W Jun 23 (174)
T Jun 24 (175)
F Jun 25 (176)
S Jun 26 (177) Ahead: 180 degree roll to observe Betelgeuse, 14-16 UT
S Jun 27 (178)
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Scheduled activities for Week 26:
M Jun 28 (179)
T Jun 29 (180)
W Jun 30 (181)
T Jul 01 (182)
F Jul 02 (183) Ahead: 180 degree roll to observe Betelgeuse, 20-22 UT
S Jul 03 (184)
S Jul 04 (185) Independence Day
-------------------------------------------------------------------------------
Scheduled activities for Week 27:
M Jul 05 (186) Independence Day observed
T Jul 06 (187)
W Jul 07 (188)
T Jul 08 (189)
F Jul 09 (190) Ahead: 180 degree roll to observe Betelgeuse, 18-20 UT
S Jul 10 (191)
S Jul 11 (192)
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Scheduled activities for Week 28:
M Jul 12 (193)
T Jul 13 (194)
W Jul 14 (195)
T Jul 15 (196)
F Jul 16 (197)
S Jul 17 (198)
S Jul 18 (199)
-------------------------------------------------------------------------------
Scheduled activities for Week 29:
M Jul 19 (200)
T Jul 20 (201)
W Jul 21 (202)
T Jul 22 (203)
F Jul 23 (204)
S Jul 24 (205)
S Jul 25 (206)
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Scheduled activities for Week 30:
M Jul 26 (207)
T Jul 27 (208) Ahead: Momentum dump, 19:00 UT
W Jul 28 (209)
T Jul 29 (210)
F Jul 30 (211)
S Jul 31 (212)
S Aug 01 (213)
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Scheduled activities for Week 31:
M Aug 02 (214)
T Aug 03 (215)
W Aug 04 (216)
T Aug 05 (217) Start of Parker Solar Probe perihelion pass
F Aug 06 (218)
S Aug 07 (219)
S Aug 08 (220) Ahead: SECCHI EUVI 171, COR2 deep fields
Notes:
* Parker Solar Probe perihelion pass, Aug 5-15
-------------------------------------------------------------------------------
Scheduled activities for Week 32:
M Aug 09 (221) Solar Orbiter Venus flyby
Ahead: SECCHI EUVI 171, COR2 deep fields
T Aug 10 (222) Ahead: SECCHI COR2 pB campaign
W Aug 11 (223) Ahead: SECCHI COR2 pB campaign
T Aug 12 (224)
F Aug 13 (225)
S Aug 14 (226)
S Aug 15 (227) End of Parker Solar Probe perihelion pass
Notes:
* Parker Solar Probe perihelion pass, Aug 5-15
-------------------------------------------------------------------------------
Scheduled activities for Week 33:
M Aug 16 (228)
T Aug 17 (229)
W Aug 18 (230)
T Aug 19 (231)
F Aug 20 (232)
S Aug 21 (233)
S Aug 22 (234)
Notes:
* Solar Orbiter in quadrature with Earth, Aug 16-Sep 12.
-------------------------------------------------------------------------------
Scheduled activities for Week 34:
M Aug 23 (235)
T Aug 24 (236)
W Aug 25 (237)
T Aug 26 (238)
F Aug 27 (239)
S Aug 28 (240)
S Aug 29 (241)
Notes:
* Solar Orbiter in quadrature with Earth, Aug 16-Sep 12.
-------------------------------------------------------------------------------
Scheduled activities for Week 35:
M Aug 30 (242)
T Aug 31 (243) Solar Orbiter METIS, SOLOHI roll
W Sep 01 (244)
T Sep 02 (245)
F Sep 03 (246)
S Sep 04 (247)
S Sep 05 (248)
Notes:
* Solar Orbiter in quadrature with Earth, Aug 16-Sep 12.
-------------------------------------------------------------------------------
Scheduled activities for Week 36:
M Sep 06 (249) Labor Day
T Sep 07 (250) 140th momentum dump, 18:45 UT
W Sep 08 (251)
T Sep 09 (252)
F Sep 10 (253)
S Sep 11 (254)
S Sep 12 (255) Start of Solar Orbiter remote sensing window
Notes:
* Solar Orbiter in quadrature with Earth, Aug 16-Sep 12.
* Solar Orbiter remote sensing window, Sep 12-19.
-------------------------------------------------------------------------------
Scheduled activities for Week 37:
M Sep 13 (256)
T Sep 14 (257)
W Sep 15 (258)
T Sep 16 (259)
F Sep 17 (260)
S Sep 18 (261) Ahead: Solar Orbiter in radial alignment
S Sep 19 (262) End of Solar Orbiter remote sensing window
Notes:
* Solar Orbiter remote sensing window, Sep 12-19.
-------------------------------------------------------------------------------
Scheduled activities for Week 38:
M Sep 20 (263) Ahead: Stepped calibration roll, 10:15 UT
T Sep 21 (264)
W Sep 22 (265)
T Sep 23 (266)
F Sep 24 (267)
S Sep 25 (268)
S Sep 26 (269)
-------------------------------------------------------------------------------
Scheduled activities for Week 39:
M Sep 27 (270)
T Sep 28 (271)
W Sep 29 (272)
T Sep 30 (273)
F Oct 01 (274)
S Oct 02 (275) Ahead: EUVI-171A long exposure campaign
S Oct 03 (276) Ahead: EUVI-171A long exposure campaign
-------------------------------------------------------------------------------
Scheduled activities for Week 40:
M Oct 04 (277) Ahead: EUVI-171A long exposure campaign
Ahead: SECCHI problem with image counter
T Oct 05 (278) Ahead: SECCHI problem with image counter
W Oct 06 (279) Ahead: SECCHI problem with image counter
T Oct 07 (280) Ahead: SECCHI problem with image counter
Ahead: SECCHI reboot at 22:07:31 - problem not fixed
F Oct 08 (281) Ahead: SECCHI problem with image counter
Ahead: SECCHI reboot at 17:58:45 - problem fixed
S Oct 09 (282)
S Oct 10 (283) Ahead: Project interface test with station 25
Notes:
* SECCHI degraded data between Oct 4-8 due to problem with image counter
-------------------------------------------------------------------------------
Scheduled activities for Week 41:
M Oct 11 (284) Ahead: Project interface test with station 53
T Oct 12 (285)
W Oct 13 (286) Ahead: Momentum dump, 18:00 UT
T Oct 14 (287)
F Oct 15 (288)
S Oct 16 (289) Parker Solar Probe Venus flyby
S Oct 17 (290)
-------------------------------------------------------------------------------
Scheduled activities for Week 42:
M Oct 18 (291)
T Oct 19 (292)
W Oct 20 (293)
T Oct 21 (294)
F Oct 22 (295)
S Oct 23 (296)
S Oct 24 (297)
-------------------------------------------------------------------------------
Scheduled activities for Week 43:
M Oct 25 (298) 15th STEREO launch anniversary
T Oct 26 (299)
W Oct 27 (300)
T Oct 28 (301)
F Oct 29 (302)
S Oct 30 (303)
S Oct 31 (304)
-------------------------------------------------------------------------------
Scheduled activities for Week 44:
M Nov 01 (305)
T Nov 02 (306)
W Nov 03 (307)
T Nov 04 (308)
F Nov 05 (309) Solar Orbiter along Sun-Earth line
S Nov 06 (310)
S Nov 07 (311) End of Daylight Savings Time in US
-------------------------------------------------------------------------------
Scheduled activities for Week 45:
M Nov 08 (312)
T Nov 09 (313)
W Nov 10 (314)
T Nov 11 (315) Veterans Day
F Nov 12 (316)
S Nov 13 (317)
S Nov 14 (318)
-------------------------------------------------------------------------------
Scheduled activities for Week 46:
M Nov 15 (319)
T Nov 16 (320) Return-to-service track with station 65
W Nov 17 (321) Start of Parker Solar Probe perihelion pass
T Nov 18 (322) Ahead: COR2 pB campaign
F Nov 19 (323) Ahead: COR2 pB campaign
S Nov 20 (324) Ahead: COR2 pB campaign, EUVI 171A deep field
S Nov 21 (325) Ahead: COR2 pB campaign, EUVI 171A deep field
Notes:
* Parker Solar Probe perihelion pass, Nov 17-26.
-------------------------------------------------------------------------------
Scheduled activities for Week 47:
M Nov 22 (326)
T Nov 23 (327) Ahead: Momentum dump, 18:30 UT
W Nov 24 (328) Ahead: SECCHI watchdog reset, 05:48-10:43
T Nov 25 (329) Thanksgiving
F Nov 26 (330) End of Parker Solar Probe perihelion pass
S Nov 27 (331) Solar Orbiter Earth flyby
S Nov 28 (332)
Notes:
* Parker Solar Probe perihelion pass, Nov 17-26.
-------------------------------------------------------------------------------
Scheduled activities for Week 48:
M Nov 29 (333)
T Nov 30 (334)
W Dec 01 (335)
T Dec 02 (336)
F Dec 03 (337)
S Dec 04 (338) Solar eclipse in Antartica
S Dec 05 (339)
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Scheduled activities for Week 49:
M Dec 06 (340)
T Dec 07 (341)
W Dec 08 (342)
T Dec 09 (343)
F Dec 10 (344) Ahead: SECCHI stepped calibration roll, 13:45
S Dec 11 (345)
S Dec 12 (346)
-------------------------------------------------------------------------------
Scheduled activities for Week 50:
M Dec 13 (347)
T Dec 14 (348)
W Dec 15 (349)
T Dec 16 (350)
F Dec 17 (351)
S Dec 18 (352)
S Dec 19 (353)
Notes:
* Solar Orbiter METIS observations of Comet Leonard, Dec 17-21
-------------------------------------------------------------------------------
Scheduled activities for Week 51:
M Dec 20 (354)
T Dec 21 (355)
W Dec 22 (356)
T Dec 23 (357)
F Dec 24 (358) Christmas holiday
S Dec 25 (359) Christmas
S Dec 26 (360)
Notes:
* Solar Orbiter METIS observations of Comet Leonard, Dec 17-21
-------------------------------------------------------------------------------
Scheduled activities for Week 52:
M Dec 27 (361)
T Dec 28 (362)
W Dec 29 (363)
T Dec 30 (364)
F Dec 31 (365) New Year holiday
S Jan 01 (001) New Year
S Jan 02 (002)
-------------------------------------------------------------------------------
Plans last modified Tuesday, 04-Jan-2022 19:47:53 UTC
Last Revised: Tuesday, 12-Jan-2021 19:40:25 UTC
Responsible NASA Official: ![[email address: Therese.A.Kucera<at>nasa<dot>gov]](/img/kucera_email1.jpg)
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