SIDC Coronal Holes

Coronal HoleFirst Time [UTC]Last Time [UTC]Polarity
00982025-03-29 12:312025-04-19 00:00Positive
Evaluation Time [UTC]LocationLatitude LocationCrossing central meridian
2025-03-29 12:31N15W07EquatorialTrue
2025-03-30 12:31N10W20EquatorialFalse
2025-03-31 00:00N10W27EquatorialFalse
2025-04-01 12:31N13W50EquatorialFalse
2025-04-02 00:00N13W56EquatorialFalse
2025-04-03 00:00N13W69EquatorialFalse
2025-04-04 00:00N13W83EquatorialFalse
2025-04-19 00:00N13E73EquatorialFalse
00822024-12-02 11:062025-04-20 00:00Positive
Evaluation Time [UTC]LocationLatitude LocationCrossing central meridian
2024-12-02 11:06S09E60EquatorialFalse
2024-12-03 05:54S07E51EquatorialFalse
2024-12-04 10:15S06E34EquatorialFalse
2024-12-05 08:55S08E19EquatorialFalse
2024-12-06 09:50S06E05EquatorialTrue
2024-12-07 11:01S11W06EquatorialTrue
2024-12-08 00:00S11W13EquatorialFalse
2024-12-09 00:00S11W26EquatorialTrue
2024-12-11 00:00S11W53EquatorialFalse
2024-12-10 00:00S11W40EquatorialFalse
2024-12-12 00:00S11W66EquatorialFalse
2024-12-13 00:00S11W79EquatorialFalse
2024-12-29 12:31S05E57EquatorialFalse
2024-12-30 00:00S05E51EquatorialFalse
2025-01-01 00:00S05E23EquatorialTrue
2025-01-03 00:00S05W06EquatorialFalse
2024-12-31 00:00S05E37EquatorialFalse
2025-01-02 00:00S05E08EquatorialFalse
2025-01-04 00:00S05W20EquatorialFalse
2025-01-05 00:00S05W34EquatorialFalse
2025-01-06 00:00S05W48EquatorialFalse
2025-01-07 00:00S05W62EquatorialFalse
2025-01-08 00:00S05W77EquatorialFalse
2025-01-24 12:31S06E67EquatorialFalse
2025-01-25 12:31S12E46EquatorialFalse
2025-01-26 12:31S09E35EquatorialFalse
2025-01-27 00:00S09E28EquatorialFalse
2025-01-28 00:00S09E15EquatorialTrue
2025-01-29 00:00S09E02EquatorialTrue
2025-01-30 00:00S09W11EquatorialTrue
2025-01-31 00:00S09W24EquatorialTrue
2025-02-01 00:00S09W38EquatorialTrue
2025-02-02 00:00S09W51EquatorialTrue
2025-02-03 10:15S13W58EquatorialFalse
2025-02-04 10:00S16W53EquatorialFalse
2025-02-05 09:40S17W63EquatorialFalse
2025-02-06 00:00S17W70EquatorialFalse
2025-02-07 00:00S17W84EquatorialFalse
2025-02-22 11:15S11E46EquatorialFalse
2025-02-23 00:00S11E39EquatorialFalse
2025-02-24 12:31S09E19EquatorialFalse
2025-02-25 11:40S09E06EquatorialTrue
2025-02-26 00:00S09W01EquatorialTrue
2025-02-27 11:16S06W21EquatorialTrue
2025-02-28 00:00S06W28EquatorialFalse
2025-03-01 11:06S04W52EquatorialFalse
2025-03-02 11:01N02W63EquatorialFalse
2025-03-03 00:00N02W70EquatorialFalse
2025-03-20 00:00N02E57EquatorialFalse
2025-03-21 00:00N02E43EquatorialFalse
2025-03-22 09:45N05E28EquatorialFalse
2025-03-23 00:00N05E20EquatorialFalse
2025-03-24 12:31N09E02EquatorialTrue
2025-03-25 10:40N07W11EquatorialTrue
2025-03-26 12:31N06W26EquatorialFalse
2025-03-27 12:31N03W39EquatorialFalse
2025-03-28 12:31N03W54EquatorialFalse
2025-03-29 00:00N03W60EquatorialFalse
2025-03-30 00:00N03W75EquatorialFalse
2025-03-31 00:00N03W89EquatorialFalse
2025-04-16 07:49N09E42EquatorialFalse
2025-04-17 00:00N09E33EquatorialFalse
2025-04-18 06:50N09E15EquatorialFalse
2025-04-19 00:00N09E05EquatorialTrue
2025-04-20 00:00N09W08EquatorialFalse
01042025-04-14 07:502025-04-20 00:00Positive
Evaluation Time [UTC]LocationLatitude LocationCrossing central meridian
2025-04-14 07:50N38E54Mid-LatitudeFalse
2025-04-15 00:00N38E45Mid-LatitudeFalse
2025-04-16 07:49N38E35Mid-LatitudeFalse
2025-04-17 07:35N36E27Mid-LatitudeTrue
2025-04-18 00:00N36E18Mid-LatitudeTrue
2025-04-19 00:00N36E05Mid-LatitudeTrue
2025-04-20 00:00N36W07Mid-LatitudeTrue
01062025-04-20 05:042025-04-20 05:04Positive
Evaluation Time [UTC]LocationLatitude LocationCrossing central meridian
2025-04-20 05:04S17E26EquatorialFalse