Viendo archivo del miércoles, 17 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 17 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 048 Publicado el 2200Z a las 17 FEB 1999IA. Análisis de regiones solares activas y de actividad desde 16-2100Z hasta 17-2100Z SOLAR ACTIVITY WAS LOW. OCCASIONAL C-CLASS FLARES MADE
UP THE DAY'S ACTIVITY, THE LARGEST BEING AN UNOBSERVED C6 AT
2029Z.REGION 8462 (N20W27) HAD THE VAST MAJORITY OF THE ASSOCIATED
FLARE ACTIVITY, WITH ITS LARGEST A C5/1N WITH TYPE II SWEEP AT
16/2121Z. REGION 8458 (S23W36) HAD ONLY A FEW C-CLASS FLARES. REGION
8457 (N15W42), ALTHOUGH QUIET, REMAINS BRIGHT IN H-ALPHA. THE
REMAINDER OF THE DISK AND LIMBS WERE QUIET.
IB. Pronóstico de la actividad solar
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. REGIONS 8457, 8458 AND 8462 RETAIN THE POTENTIAL FOR
ISOLATED M-CLASS FLARES.
IIA. Resumen de la actividad geofísica 16-2100Z a 17-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO MINOR STORM LEVELS. A TRANSIENT
STRUCTURE WAS SEEN TO PASS ACE AROUND 0500Z, WITH ELEVATED SPEED AND
PROLONGED SOUTHWARD BZ. CONDITIONS HAVE SINCE STABILIZED WITH
NOMINAL CONDITIONS NOW OCCURRING. THIS TRANSIENT MAY BE AN EFFECT OF
SOLAR ACTIVITY ON FEBRUARY 12.
IIB. Pronóstico de la actividad geofísica
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE GENERALLY UNSETTLED FOR THE NEXT THREE DAYS. THERE IS
A CHANCE FOR EPISODES OF ELEVATED ACTIVITY IN THE FIRST TWO DAYS,
DUE TO SOLAR ACTIVITY FROM REGION 8458 EARLY ON FEBRUARY 16.
III. Probabilidades del evento 18 FEB a 20 FEB
| Clase M | 50% | 50% | 50% |
| Clase X | 10% | 10% | 10% |
| Protón | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Penticton 10.7cm flujo
Observado 17 FEB 190 Previsto 18 FEB-20 FEB 185/175/165 Media de 90 Días 17 FEB 146
V. Índices Geomagnéticos A
OBSERVED AFR/AP 16 FEB 003/004 ESTIMATED AFR/AP 17 FEB 015/015 PREDICTED AFR/AP 18 FEB-20 FEB 015/010-015/010-010/008
VI. Probabilidades de Actividad Geomagnética 18 FEB a 20 FEB
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 40% | 40% | 30% |
| Tormenta Menor | 20% | 20% | 10% |
| Tormenta Mayor-Severa | 05% | 05% | 05% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 50% | 50% | 40% |
| Tormenta Menor | 25% | 25% | 20% |
| Tormenta Mayor-Severa | 10% | 10% | 05% |
All times in UTC
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