Affichage des archives de dimanche, 26 mai 2002
Rapport d'activité solaire
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport d'activité solaire et géophysique 2002 May 26 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 146 publié à 2200Z le 26 May 2002IA. Analyse des régions solaires actives et activité du 25-2100Z au 26-2100Z Solar activity remained at low levels. Region 9961
(S21W17) produced a C4/Sf flare at 26/1356 UTC, which was the
largest flare of the period. It appeared to simplify and may have
lost the delta in its intermediate spots. Region 9963 (N14W03)
showed minor spot growth, but remained simply-structured. It
produced a C-class subflare early in the period. Region 9957
(N10W58) was quiet as it continued to gradually decay and simplify.
However, a weak delta magnetic configuration persisted within its
northern spots. Region 9960 (N15W30) was quiet as it slowly decayed
and simplified. New Region 9970 (N05E54) emerged just to the south
of Region 9969 (N09E55). It appeared to be in a growth phase as it
produced occasional subflares.
IB. Prévisions d'activité solaire
Solar activity is expected to be at
low to moderate levels. There is a fair chance for an isolated,
low-level M-class flare. There is a slight chance for major flare
activity during the period.
IIA. Résumé de l'activité géophysique du 25-2100Z au 26-2100Z
Geomagnetic field activity was at quiet to unsettled levels.
IIB. Prévision de l'activité géophysique
Geomagnetic field activity is
expected to be at mostly quiet levels through the period. There is a
slight chance for a proton event during the period.
III. Probabilité d'éruption solaire du 27 May au 29 May
| Classe M | 40% | 40% | 35% |
| Classe X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | yellow | ||
IV. Flux Penticton 10.7 cm
Observé 26 May 183 Prévisionnel 27 May-29 May 180/180/175 Moyenne des 90 derniers jours 26 May 183
V. Indice géomagnetique A
Observé Afr/Ap 25 May 003/006 Estimé Afr/Ap 26 May 005/008 Prévisionnel Afr/Ap 27 May-29 May 007/008-005/008-005/008
VI. Probabilités d'activité géomagnétique du 27 May au 29 May
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 20% | 15% | 15% |
| Tempête mineure | 05% | 01% | 01% |
| Tempête majeure/sévère | 01% | 01% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 25% | 20% | 20% |
| Tempête mineure | 10% | 05% | 05% |
| Tempête majeure/sévère | 01% | 01% | 01% |
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