Affichage des archives de mardi, 2 avril 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 Apr 02 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 092 publié à 2200Z le 02 Apr 2002IA. Analyse des régions solaires actives et activité du 01-2100Z au 02-2100Z Solar activity continued at low levels. The largest
event of the period was an optically uncorrelated C9.4 flare at
02/0050 UTC. No resulting CME activity was apparent in available
imagery from SOHO/LASCO. Region 9887 (N02E11) was a dominant source
of numerous, lesser C-class flares throughout the period. This
region has grown appreciably in size and retains moderate magnetic
complexity. Three new regions were numbered today: 9890 (S15W49),
9891 (S08W08), and 9892 (N05E63), all appearing small and relatively
simple in structure.
IB. Prévisions d'activité solaire
Solar activity is expected to be low
to moderate. Region 9887 appears to be a likely source for
continued C-class and potential M-class flare activity. Region 9885
(N13W14) also retains sufficient size and complexity for potentially
significant flare activity.
IIA. Résumé de l'activité géophysique du 01-2100Z au 02-2100Z
The geomagnetic field was quiet to active. High speed stream effects
from a favorably positioned coronal hole continued, but showed signs
of a gradual waning trend throughout the period.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be mainly quiet to unsettled for the next three days.
Isolated active periods are possible in local nighttime sectors
during the next 12-24 hours as high speed stream effects continue to
wane. A chance for moderate to high flux levels of greater than 2
MeV electrons at geosynchronous orbit exists for the next three days.
III. Probabilité d'éruption solaire du 03 Apr au 05 Apr
| Classe M | 50% | 50% | 50% |
| Classe X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 02 Apr 206 Prévisionnel 03 Apr-05 Apr 210/205/205 Moyenne des 90 derniers jours 02 Apr 203
V. Indice géomagnetique A
Observé Afr/Ap 01 Apr 011/016 Estimé Afr/Ap 02 Apr 012/015 Prévisionnel Afr/Ap 03 Apr-05 Apr 010/010-010/008-005/005
VI. Probabilités d'activité géomagnétique du 03 Apr au 05 Apr
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 15% | 10% | 10% |
| Tempête mineure | 05% | 05% | 05% |
| Tempête majeure/sévère | 01% | 01% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 20% | 15% | 10% |
| Tempête mineure | 05% | 05% | 05% |
| Tempête majeure/sévère | 01% | 01% | 01% |
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