Affichage des archives de samedi, 31 mai 1997
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 1997 May 31 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 151 publié à 2200Z le 31 MAY 1997IA. Analyse des régions solaires actives et activité du 30-2100Z au 31-2100Z SOLAR ACTIVITY WAS VERY LOW. A SINGLE B1/SF WITH
ACCOMPANYING 3 DEGREE DSF WAS OBSERVED FROM SPOTLESS REGION 8046
(S26W42) AT 31/1206Z. IN ADDITION, A LARGE 61 DEGREE FILAMENT BEGAN
TO SLOWLY DISSIPATE AT APPROXIMATELY 31/1202Z, AND FINALLY
DISAPPEARING AT APPROXIMATLEY 31/1349Z FROM THE NORTHWEST QUADRANT
(N43, W36 TO W90). OF THE TWO ACTIVE REGIONS CURRENTLY ON THE
VISIBLE DISK, REGION 8047 (N27E19), A 3 SPOT 'CRO' BETA GROUP,
REMAINS STABLE, WHILE 8048 (S29E41), A SIX SPOT 'BXO' BETA, HAS
DISPLAYED GROWTH AND INCREASED ADF AND AFS ACTIVITY SINCE FORMING
YESTERDAY.
IB. Prévisions d'activité solaire
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW, WITH A COMBINED 40 PERCENT CHANCE FOR A C-CLASS EVENT FROM
REGIONS 8047 AND 8048.
IIA. Résumé de l'activité géophysique du 30-2100Z au 31-2100Z
THE GEOMAGNETIC FIELD HAS BEEN MOSTLY QUIET FOR THE PAST 24 HOURS,
WITH ISOLATED PERIODS OF UNSETTLED CONDITIONS.
IIB. Prévision de l'activité géophysique
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE MOSTLY QUIET FOR THE NEXT 48 HOURS, WITH CONTINUED
PERIODS OF ISOLATED UNSETTLED CONDITIONS. ACTIVITY ON DAY THREE IS
EXPECTED TO INCREASE TO MOSTLY UNSETTLED WITH THE CHANCE FOR
ISOLATED PERIODS OF ACTIVE CONDITIONS AS AN INITIAL RESPONSE TO
TODAY'S LARGE DSF EVENT. SUSTAINED PERIODS OF ACTIVE CONDITIONS ARE
POSSIBLE ON DAY FOUR.
III. Probabilité d'éruption solaire du 01 JUN au 03 JUN
| Classe M | 05% | 05% | 05% |
| Classe X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Flux Penticton 10.7 cm
Observé 31 MAY 073 Prévisionnel 01 JUN-03 JUN 076/076/076 Moyenne des 90 derniers jours 31 MAY 074
V. Indice géomagnetique A
OBSERVED AFR/AP 30 MAY 007/007 ESTIMATED AFR/AP 31 MAY 005/008 PREDICTED AFR/AP 01 JUN-03 JUN 005/005-005/005-010/010
VI. Probabilités d'activité géomagnétique du 01 JUN au 03 JUN
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 10% | 10% | 20% |
| Tempête mineure | 05% | 05% | 10% |
| Tempête majeure/sévère | 01% | 01% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 15% | 15% | 25% |
| Tempête mineure | 10% | 10% | 10% |
| Tempête majeure/sévère | 01% | 01% | 05% |
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