Viendo archivo del domingo, 21 febrero 1999
Informe actividad solar
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.
Informe de actividad Solar-Geofísica 1999 Feb 21 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 052 Publicado el 2200Z a las 21 FEB 1999IA. Análisis de regiones solares activas y de actividad desde 20-2100Z hasta 21-2100Z SOLAR ACTIVITY WAS MODERATE. THIS WAS DUE TO A SINGLE
M-CLASS EVENT. A LONG DURATION (1 HOUR) M1/SF AT 21/1345UT FROM
REGION 8462 (N20W79). THE ONLY OTHER EVENT OF NOTICE WAS AN
OPTICALLY UNCORRELATED C8 X-RAY FLARE AT 21/0950UT. REGION 8462 WAS
THE MOST ACTIVE REGION. RGN 8464 (N18W53) PRODUCED A SINGLE
SUBFLARE. ALL THE REST OF THE REGIONS WERE QUIET AND STABLE. NEW
REGION 8469 (N15W18) EMERGED AS A 4 SPOT CSO BETA GROUP.
IB. Pronóstico de la actividad solar
SOLAR ACTIVITY IS EXPECTED TO BE LOW.
THERE IS SLIGHT CHANCE OF REGION 8462 PRODUCING ANOTHER ISOLATED
M-CLASS EVENT.
IIA. Resumen de la actividad geofísica 20-2100Z a 21-2100Z
THE GEOMAGNETIC FIELD WAS QUIET. THE GREATER THAN 2 MEV ELECTRON FLUX
AT GEOSYNCHRONOUS ORBIT REACHED THRESHOLD LEVELS AT 21/1700 AND
REMAINED AT THAT LEVEL FOR THE REST OF THE PERIOD.
IIB. Pronóstico de la actividad geofísica
THE GEOMAGNETIC FIELD IS
EXPECTED TO VARY FROM QUIET TO ACTIVE LEVELS FOR THE NEXT 2 DAYS. A
HIGH SPEED STREAM FROM A WELL POSITIONED CORONAL HOLE MAY AFFECT THE
NEAR EARTH ENVIRONS IN THE NEXT 24-48 HOURS. CONDITIONS SHOULD
RETURN TO QUIET TO UNSETTLED ON THE 3RD DAY.
III. Probabilidades del evento 22 FEB a 24 FEB
| Clase M | 30% | 25% | 20% |
| Clase X | 01% | 01% | 01% |
| Protón | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7cm flujo
Observado 21 FEB 147 Previsto 22 FEB-24 FEB 145/140/135 Media de 90 Días 21 FEB 147
V. Índices Geomagnéticos A
OBSERVED AFR/AP 20 FEB 002/005 ESTIMATED AFR/AP 21 FEB 005/010 PREDICTED AFR/AP 22 FEB-24 FEB 005/012-015/017-010/008
VI. Probabilidades de Actividad Geomagnética 22 FEB a 24 FEB
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 15% | 30% | 20% |
| Tormenta Menor | 05% | 10% | 05% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 20% | 40% | 30% |
| Tormenta Menor | 05% | 15% | 10% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
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