Affichage des archives de samedi, 22 mai 2004
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 2004 May 22 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 143 publié à 2200Z le 22 May 2004IA. Analyse des régions solaires actives et activité du 21-2100Z au 22-2100Z Solar activity was moderate. Region 618 (S10E41)
produced an M2/Sf at 21/2352 UTC, as well as several C-class events.
The region has continued to grow and has formed a delta
configuration as leader penumbral spots of opposite polarity have
consolidated. Region 615 (N18W13) managed to produce a C1 event at
21/2220 UTC but was otherwise quiet and stable. Region 617 (S10W60)
exhibited some minor surge activity but did not manage to produce
any flares.
IB. Prévisions d'activité solaire
Solar activity is expected be mostly
low, but there is a fair chance for additional, isolated M-class
activity from Region 618.
IIA. Résumé de l'activité géophysique du 21-2100Z au 22-2100Z
The geomagnetic field was predominantly quiet to unsettled with the
exception of an active period from 0600-0900 UTC. Solar wind speeds
continue to be elevated in the 450-500 km/s range.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be mostly unsettled for the next 24 hours (23 May), but
should transition to mostly quiet as the high speed solar wind is
expected to decline gradually late on the 23rd through the 24th.
Conditions should be mostly quiet with occasional periods of
unsettled levels for the 2nd and 3rd days (24-25 May).
III. Probabilité d'éruption solaire du 23 May au 25 May
| Classe M | 35% | 35% | 35% |
| Classe X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 22 May 102 Prévisionnel 23 May-25 May 100/100/095 Moyenne des 90 derniers jours 22 May 105
V. Indice géomagnetique A
Observé Afr/Ap 21 May 006/010 Estimé Afr/Ap 22 May 010/013 Prévisionnel Afr/Ap 23 May-25 May 010/012-005/008-007/008
VI. Probabilités d'activité géomagnétique du 23 May au 25 May
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 30% | 20% | 20% |
| Tempête mineure | 15% | 10% | 10% |
| Tempête majeure/sévère | 05% | 05% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 25% | 20% | 20% |
| Tempête mineure | 20% | 10% | 10% |
| Tempête majeure/sévère | 10% | 05% | 05% |
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