Affichage des archives de vendredi, 15 janvier 1999
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 1999 Jan 15 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 015 publié à 2200Z le 15 JAN 1999IA. Analyse des régions solaires actives et activité du 14-2100Z au 15-2100Z SOLAR ACTIVITY WAS MODERATE. REGION 8440 (N20E42)
CONTINUED AS THE DOMINANT ACTIVE REGION ON THE DISK AS IT PRODUCED
ANOTHER M-CLASS EVENT (M1/1F AT 0721Z), AS WELL AS NUMEROUS C-CLASS
FLARES. THE LARGEST C-CLASS EVENT WAS A C9/1B AT 1444Z. THE REGION
CONSISTS OF NEARLY 30 SPOTS, BRIGHT PLAGE, AND A POSSIBLE MIXED
POLARITY (DELTA) CONFIGURATION IN THE SOUTHERN PORTION OF THE
INTERMEDIATE SPOTS. REGION 8439 (S24E41) GENERATED A C3/1F AT 1314Z,
BUT LITTLE ELSE. IT HAS A SLIGHT DEGREE OF MAGNETIC COMPLEXITY AS
WELL AS APPROXIMATELY 25 SPOTS. ELSEWHERE, THE REMAINDER OF THE DISK
AND LIMBS WERE QUIET.
IB. Prévisions d'activité solaire
SOLAR ACTIVITY IS EXPECTED TO REMAIN
MODERATE. CONTINUED M-CLASS FLARES ARE LIKELY FROM REGION 8440, AND
SHOULD FURTHER DEVELOPMENT OCCUR, REGION 8439.
IIA. Résumé de l'activité géophysique du 14-2100Z au 15-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO ACTIVE AT MIDDLE LATITUDES, AND
UNSETTLED TO MINOR STORM AT HIGH LATITUDES. A HIGH-SPEED SOLAR WIND
STREAM HAS PROLONGED THE CME-RELATED DISTURBANCE THAT BEGAN ON 13
JANUARY. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS
ORBIT REACHED HIGH LEVELS AT APPROXIMATELY 1500Z.
IIB. Prévision de l'activité géophysique
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE PRIMARILY QUIET TO UNSETTLED THROUGHOUT THE PERIOD.
SUBSTORMS MAY BRING BRIEF ACTIVE LEVELS DURING LOCAL NIGHTTIMES OVER
THE NEXT 24 HOURS.
III. Probabilité d'éruption solaire du 16 JAN au 18 JAN
| Classe M | 75% | 75% | 75% |
| Classe X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Flux Penticton 10.7 cm
Observé 15 JAN 143 Prévisionnel 16 JAN-18 JAN 150/155/160 Moyenne des 90 derniers jours 15 JAN 138
V. Indice géomagnetique A
OBSERVED AFR/AP 14 JAN 017/026 ESTIMATED AFR/AP 15 JAN 015/015 PREDICTED AFR/AP 16 JAN-18 JAN 015/015-010/009-005/009
VI. Probabilités d'activité géomagnétique du 16 JAN au 18 JAN
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 40% | 25% | 10% |
| Tempête mineure | 10% | 05% | 05% |
| Tempête majeure/sévère | 01% | 01% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 50% | 30% | 20% |
| Tempête mineure | 20% | 10% | 10% |
| Tempête majeure/sévère | 05% | 01% | 01% |
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