Affichage des archives de dimanche, 6 mai 2012
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 2012 May 06 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 127 publié à 2200Z le 06 May 2012IA. Analyse des régions solaires actives et activité du 05-2100Z au 06-2100Z Solar activity has been at moderate levels for the past
24 hours with three impulsive, low level M-class events observed
from Region 1476 (N10E63). The largest event was an M1/1n at
06/1747Z. Region 1476 has rotated further into view and is now
classified as a Fhi/beta-gamma sunspot group with an area of around
760 millionths. Three filament eruptions were also observed in the
past 24 hours, but none appear to have an earthward directed
component. No new regions were numbered today.
IB. Prévisions d'activité solaire
Solar activity is expected to be at
low to moderate levels for the next three days (07 - 09 May) as
Region 1476 continues to evolve and rotate further onto the visible
disk.
IIA. Résumé de l'activité géophysique du 05-2100Z au 06-2100Z
The geomagnetic field has been at mostly quiet levels for the past 24
hours.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be at quiet to unsettled levels on days one and two (07
- 08 May) due to a solar sector boundary crossing and the possible
arrival of a CME, observed lifting off the solar disk on 05 May. A
slight increase to quiet to unsettled levels with a chance for an
active period is expected on day three (09 May) as a corotating
interactive region, in front of a high speed solar wind stream, is
expected to arrive here at Earth.
III. Probabilité d'éruption solaire du 07 May au 09 May
| Classe M | 70% | 70% | 70% |
| Classe X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 06 May 117 Prévisionnel 07 May-09 May 115/115/115 Moyenne des 90 derniers jours 06 May 112
V. Indice géomagnetique A
Observé Afr/Ap 05 May 004/004 Estimé Afr/Ap 06 May 005/005 Prévisionnel Afr/Ap 07 May-09 May 007/008-007/008-009/010
VI. Probabilités d'activité géomagnétique du 07 May au 09 May
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 10% | 10% | 40% |
| Tempête mineure | 01% | 01% | 15% |
| Tempête majeure/sévère | 01% | 01% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 15% | 15% | 15% |
| Tempête mineure | 20% | 20% | 30% |
| Tempête majeure/sévère | 15% | 15% | 45% |
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