Suivi , évolution de l'activité solaire 2022 , 1er trimestre

[cartesien66]

4 région(s) active(s) RA 2978 , 2981, 2983 , 2985 et 15 TS observées
WDC Silso -> 48 / 11 observatoires
NOAA -> 55
SWPC -> 61
Flux solaire -> 109
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Region 12978 [S17W67] decayed slowly and quietly.
Region 12981 [S23W62] decayed slowly and quietly.
Region 12982 [S22W28] decayed slowly and quietly.
Region 12983 [N21W32] saw minor flux emergence in the leading polarity section and gained a few spots.
Region 12985 [S20E18] developed slowly and was mostly quiet. C1 flares: C1.2 @ 01:31 UT
New region 12987 [S31E48] rotated into view on April 4 and was numbered 3 days later by SWPC.

[cartesien66]

3 région(s) active(s) RA 2978 , 2983 , 2985 et 7 TS observées
WDC Silso -> 37 / 22 observatoires
NOAA -> 37
SWPC -> 41
Flux solaire -> 107
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Region 12978 [S17W80] decayed slowly. The region was quiet early on, however, a slow increase in activity was noted after noon and during the first half of April 9 with several C flares occurring.
Region 12981 [S22W78] decayed slowly and quietly.
Region 12983 [N22W47] gained spots as more flux emerged in the leading polarity area. C1 flares: C1.0 @ 11:21, C1.0 @ 17:29 UT
Region 12985 [S21E04] gained tiny spots and was quiet.
Region 12987 [S31E36] was quiet and stable.

[cartesien66]

1 région(s) active(s) RA 2983 et 3 TS observées
WDC Silso -> 18 / 22 observatoires
NOAA -> 13
SWPC -> 14
Flux solaire -> 101
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Region 12983 [N22W58] decayed slowly and was mostly quiet.
Region 12985 [S21W08] decayed slowly and quietly.
Region 12987 [S30E22] decayed slowly and quietly.

[cartesien66]

2 région(s) active(s) RA 2983 , 2988 et 4 TS observées
WDC Silso -> 11 / 17 observatoires
NOAA -> 24
SWPC -> 26
Flux solaire -> 99
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Region 12983 [N22W72] decayed slowly and quietly.
Region 12985 [S21W19] decayed slowly and quietly.

[cartesien66]

2 région(s) active(s) RA 2988 , 2989 et 3 TS observées
WDC Silso -> 12 / 19 observatoires
NOAA -> 23
SWPC -> 25
Flux solaire -> 96
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Region 12985 [S22W32] was quiet and stable.
Region 12987 [S31W07] reemerged with a tiny spot.
New region 12988 [N15E51] emerged on April 10 and was numbered the next day by SWPC as the region developed slowly.

Spotted regions not observed (or interpreted differently) by SWPC:
S7479 [N14W87] developed slowly as it rotated to the northwest limb.
S7483 [S13W07] was mostly quiet and stable. A sigmoid shaped filament in the southern part of the region erupted early in the day and was recorded as a long duration C1.6 event peaking at 05:21 UT.
S7484 [N23W18] decayed slowly and quietly.
New region S7489 [N35E12] emerged before noon with a couple of tiny spots, then decayed slowly.

[cartesien66]

3 région(s) active(s) RA 2988 , 2989 , 2990 et 7 TS observées
WDC Silso -> 31 / 15 observatoires
NOAA -> 37
SWPC -> 41
Flux solaire -> 99
https://www.spaceweatherlive.com/en/rep ... eport.html



Region 12985 [S22W49] decayed slowly and quietly.
Region 12987 [S32W11] was quiet and stable.
Region 12988 [N15E38] developed early in the day, then decayed slowly after noon.
New region 12989 [N18E74] rotated into view at the northeast limb.

Spotted regions not observed (or interpreted differently) by SWPC:
S7483 [S14W21] was quiet and stable.
S7484 [N25W23] decayed slowly and quietly.
New region S7491 [N10W29] emerged after noon with tiny spots. Polarities are reversed and this may be an SC24 group.
New region S7492 [S18E07] was observed with tiny spots in an old plage area.

[cartesien66]

3 région(s) active(s) RA 2989 , 2990 , 2991 et 7 TS observées
WDC Silso -> 37 / 25 observatoires
NOAA -> 37
SWPC -> 41
Flux solaire -> 103
https://www.spaceweatherlive.com/en/rep ... eport.html


Region 12987 [S31W21] gained a few spots and was quiet.
Region 12988 [N15E26] decayed slowly and quietly.
Region 12989 [N18E59] was quiet and stable.
New region 12990 [N15E48] emerged with a few spots.

Spotted regions not observed (or interpreted differently) by SWPC:
S7483 [S14W35] was quiet and stable.
S7488 [S13E28] reemerged with a few spots
S7492 [S29W08] decayed slowly and quietly.
New region S7493 [S24E78] rotated into view with a single, mature spot.

[cartesien66]

3 région(s) active(s) RA 2989 , 2990 , 2991 et 5 TS observées
WDC Silso -> 41 / 17 observatoires
NOAA -> 35
SWPC -> 39
Flux solaire -> 110
https://www.spaceweatherlive.com/en/rep ... eport.html



Region 12987 [S32W31] developed slowly and quietly.
Region 12989 [N18E45] decayed slowly and quietly.
Region 12990 [N15E33] developed further and was quiet.
New region 12991 [S24E65] rotated into view on April 13 and was numbered the next day by SWPC.

Spotted regions not observed (or interpreted differently) by SWPC:
S7483 [S13W45] was quiet and stable.
S7488 [S13E13] was quiet and stable.
New region S7494 [S15W05] emerged with a tiny spot.
New region S7495 [N05E43] emerged with tiny spot and is likely an SC24 group.
New region S7496 [S27E45] was observed with a tiny spot in an old plage area.

[cartesien66]

6 région(s) active(s) RA 2989 , 2990 , 2991, 2992 , 2993 , 2994 et 18 TS observées
WDC Silso -> 51 / 22 observatoires
NOAA -> 78
SWPC -> 86
Flux solaire -> 122
https://www.spaceweatherlive.com/en/rep ... eport.html



Region 12987 [S30W47] decayed slowly and quietly.
Region 12988 [N15W02] reemerged with tiny spots.
Region 12989 [N18E31] was quiet and stable.
Region 12990 [N15E19] decayed slightly and was quiet.
Region 12991 [S24E52] was quiet and stable.

Spotted regions not observed (or interpreted differently) by SWPC:
S7488 [S13E01] was quiet and stable.
S7489 [N34W35] reemerged with a tiny spot.
S7496 [S26E28] was quiet and stable.
New region S7498 [N24W22] emerged with tiny spots.
New region S7499 [S12W41] emerged with a tiny spot.

[cartesien66]

5 région(s) active(s) RA 2990 , 2991, 2992 , 2993 , 2994 et 24 TS observées
WDC Silso -> 78 / 19 observatoires
NOAA -> 74
SWPC -> 81
Flux solaire -> 135
https://www.spaceweatherlive.com/en/rep ... eport.html



Region 12987 [S30W60] developed as new flux emerged. Note that SWPC has this as AR 12992, however, this faulty region numbering is the result of inaccurate tracking (coordinates) of AR 12987.
Region 12989 [N18E19] decayed slowly and quietly.
Region 12990 [N16E07] was quiet and stable.
Region 12991 [S24E39] was quiet and stable.
New region 12993 [N21E74] rotated into view and has a large leader spot. Further M class flaring is likely.
New region 12994 [N13E77] rotated partly into view and is a complex region capable of producing major flares. The region was the source of an X1.1 flare at 03:34 UT on April 17.

Spotted regions not observed (or interpreted differently) by SWPC:
S7496 [S26E15] was quiet and stable.
New region S7502 [S22E38] emerged early in the day just north of the leader spot of AR 12991. Slow decay was observed after noon.
New region S7503 [S29W01] emerged with tiny spots.
New region S7504 [N22W03] emerged with tiny spots.