Affichage des archives de vendredi, 22 septembre 2000
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 2000 Sep 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 266 publié à 2200Z le 22 SEP 2000IA. Analyse des régions solaires actives et activité du 21-2100Z au 22-2100Z SOLAR ACTIVITY HAS BEEN LOW. MOST ACTIVITY OCCURRED IN
REGION 9169 (N10E13), WHICH PRODUCED SEVERAL C-CLASS FLARES
THROUGHOUT THE DAY, THE LARGEST BEING A C5/SF IN PROGRESS AT THE END
OF THE PERIOD, 22/2100 UTC. THIS REGION REMAINS THE LARGEST AND
MOST IMPRESSIVE ON THE DISK, EXHIBITING AN INCREASED NUMBER OF SPOTS
WITH SLIGHTLY REDUCED AREAL EXTENT SINCE YESTERDAY, AND RETAINING
A BETA-DELTA-GAMMA MAGNETIC CONFIGURATION. REGION 9166 (S12W30)
ALSO PRODUCED SOME C-CLASS ACTIVITY.
IB. Prévisions d'activité solaire
SOLAR ACTIVITY IS EXPECTED TO BE
PREDOMINANTLY LOW TO MODERATE FOR THE NEXT THREE DAYS. REGION 9169
REMAINS A LIKELY SOURCE OF ISOLATED MAJOR FLARE ACTIVITY.
IIA. GEOPHYSICAL ACTIVITY SUMMARY 21/2100Z TO 22/2100Z:
THE GEOMAGNETIC FILED HAS BEEN PREDOMINANTLY QUIET THROUGHOUT THE
DAY. ISOLATED UNSETTLED PERIODS WERE OBSERVED AT HIGHER LATITUDES.
GREATER-THAN-2 MEV ELECTRONS AT GEOSYNCHRONOUS ORBIT WERE AT
MODERATE LEVELS DURING LOCAL DAYTIME HOURS.
IIB. Prévision de l'activité géophysique
BARRING AN EARTH-DIRECTED CME
FROM REGION 9169, THE GEOMAGNETIC FIELD IS EXPECTED TO PERSIST AT
QUIET TO UNSETTLED LEVELS THROUGH THE FIRST TWO DAYS, WITH AN
INCREASED CHANCE OF ACTIVE LEVELS BY DAY THREE DUE TO THE INFLUENCE
OF A FAVORABLY POSITIONED CORONAL HOLE.
III. Probabilité d'éruption solaire du 23 SEP au 25 SEP
| Classe M | 70% | 70% | 70% |
| Classe X | 25% | 25% | 25% |
| Proton | 05% | 05% | 10% |
| PCAF | YELLOW | ||
IV. Flux Penticton 10.7 cm
Observé 22 SEP 232 Prévisionnel 23 SEP-25 SEP 235/235/230 Moyenne des 90 derniers jours 22 SEP 179
V. Indice géomagnetique A
OBSERVED AFR/AP 21 SEP 007/009 ESTIMATED AFR/AP 22 SEP 007/008 PREDICTED AFR/AP 23 SEP-25 SEP 010/010-010/010-015/020
VI. Probabilités d'activité géomagnétique du 23 SEP au 25 SEP
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 20% | 20% | 25% |
| Tempête mineure | 10% | 10% | 15% |
| Tempête majeure/sévère | 01% | 01% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 25% | 25% | 30% |
| Tempête mineure | 10% | 10% | 15% |
| Tempête majeure/sévère | 01% | 01% | 01% |
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