Viendo archivo del martes, 21 abril 1998
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 1998 Apr 21 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 111 Publicado el 2200Z a las 21 APR 1998IA. Análisis de regiones solares activas y de actividad desde 20-2100Z hasta 21-2100Z SOLAR ACTIVITY WAS VERY LOW. THE ONLY ACTIVITY OF NOTE
WAS AN ERUPTIVE PROMINENCE THAT OCCURRED ON THE WEST LIMB NEAR N30.
NO OTHER ACTIVITY WAS NOTED WITH THIS ERUPTION. REGION 8205
(N21W53) DECAYED SLIGHTLY IN WHITE LIGHT AREA BUT IS STILL
EXHIBITING OCCASIONAL PLAGE FLUCTUATIONS AND SURGING. THE REMAINING
REGIONS HAVE BEEN QUIET.
IB. Pronóstico de la actividad solar
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW. REGION 8205 HAS POTENTIAL TO PRODUCE AN ISOLATED C-CLASS
FLARE. STILL A SLIGHT CHANCE FOR FURTHER ACTIVITY NEAR THE SW LIMB -
THE SOURCE OF YESTERDAY'S M1 X-RAY FLARE; HOWEVER, THE LIKELY SOURCE
REGION HAS PROBABLY ROTATED ENOUGH TO ELIMINATE CONCERN.
IIA. Resumen de la actividad geofísica 20-2100Z a 21-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 10 MEV
PROTON EVENT THAT BEGAN AT 20/1130Z IS STILL IN PROGRESS. A MAXIMUM
VALUE OF 1700 PFU WAS REACHED AT 21/1205. THE EVENT APPEARS TO BE
IN DECLINE NOW WITH A CURRENT VALUE OF 640 PFU. THE GREATER THAN 100
MEV EVENT PEAKED AT 7.4 PFU AT 21/1255Z AND IS CURRENTLY AT 2.5 PFU.
IIB. Pronóstico de la actividad geofísica
THE GEOMAGNETIC FIELD IS
EXPECTED TO CONTINUE AT QUIET TO UNSETTLED LEVELS. AN EXTENSION OF
THE SOUTHERN CORONAL HOLE WILL MOVE INTO FAVORABLE POSITION FOR
GEOEFFECTIVNESS ON DAY TWO AND THREE. EXPECT OCCASIONAL ACTIVE
PERIODS DURING THIS PERIOD. THE PROTON EVENT IN PROGRESS IS EXPECTED
TO LAST THROUGH TOMORROW.
III. Probabilidades del evento 22 APR a 24 APR
| Clase M | 05% | 05% | 05% |
| Clase X | 01% | 01% | 01% |
| Protón | 05% | 05% | 01% |
| PCAF | IN PROGRESS | ||
IV. Penticton 10.7cm flujo
Observado 21 APR 92 Previsto 22 APR-24 APR 092/090/090 Media de 90 Días 21 APR 104
V. Índices Geomagnéticos A
OBSERVED AFR/AP 20 APR 009/010 ESTIMATED AFR/AP 21 APR 007/010 PREDICTED AFR/AP 22 APR-24 APR 012/010-012/015-012/020
VI. Probabilidades de Actividad Geomagnética 22 APR a 24 APR
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 15% | 30% | 30% |
| Tormenta Menor | 05% | 05% | 05% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 20% | 40% | 45% |
| Tormenta Menor | 10% | 10% | 10% |
| Tormenta Mayor-Severa | 01% | 06% | 06% |
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