Viendo archivo del jueves, 30 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 30 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 120 Publicado el 2200Z a las 30 APR 1998IA. Análisis de regiones solares activas y de actividad desde 29-2100Z hasta 30-2100Z SOLAR ACTIVITY WAS VERY LOW. REGION 8210 (S16E03)
PRODUCED ONLY MINOR FLUCTUATIONS. THIS REGION MAINTAINED SOME MIXED
POLARITIES AND OVERALL WAS STABLE. THE TYPE IV RADIO BURST
ASSOCIATED WITH THE M6/3B FLARE ON 29 APR REMAINED IN PROGRESS
THROUGH THE LAST 24 HOURS.
IB. Pronóstico de la actividad solar
SOLAR ACTIVITY SHOULD BE GENERALLY LOW
WITH OCCASIONAL C-CLASS FLARES FROM REGION 8210. AN ISOLATED M-CLASS
EVENT IS POSSIBLE. THIS REGION COULD PRODUCE ANOTHER X-CLASS EVENT
BEFORE WEST LIMB TRANSIT BUT THAT POSSIBILITY IS BECOMING LESSENED
AS THE REGION SIMPLIFIES MAGNETICALLY.
IIA. Resumen de la actividad geofísica 29-2100Z a 30-2100Z
THE GEOMAGNETIC FIELD WAS QUIET UNTIL A 31 NT SUDDEN IMPULSE WAS
OBSERVED AT 30/0933Z. THIS WAS PRECEDED BY A SHOCK PASSAGE AT THE
ACE SPACECRAFT AT 30/0845Z. AFTER THE SUDDEN IMPULSE, UNSETTLED TO
ACTIVE CONDITIONS WERE OBSERVED. THIS DISTURBANCE IS BELIEVED TO BE
RELATED TO THE X1/HALO CME OBSERVED ON 27 APR. A WEAK ENERGETIC
PROTON (GT 10 MEV) ENHANCEMENT BEGAN AT 30/0405Z. MAXIMUM FLUX WAS 2
PFU. THIS ENHANCEMENT IS ATTRIBUTED TO THE M6/HALO CME OBSERVED ON
29 APR. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT WERE
PREDOMINANTLY HIGH.
IIB. Pronóstico de la actividad geofísica
THE GEOMAGNETIC FIELD SHOULD BE
UNSETTLED TO ACTIVE FOR 01 MAY. ISOLATED MINOR STORMING IS POSSIBLE
DURING THAT TIME. A LARGER DISTURBANCE IS FORECAST FOR 02-03 MAY AS
A RESULT OF M6/HALO CME OBSERVED YESTERDAY. ACTIVE TO MINOR STORM
LEVELS ARE EXPECTED WITH PERIODS AT MAJOR STORM POSSIBLE. THE
CURRENT PROTON ENHANCEMENT SHOULD DECAY TO BACKGROUND LEVELS IN THE
NEXT TWO DAYS.
III. Probabilidades del evento 01 MAY a 03 MAY
| Clase M | 25% | 25% | 25% |
| Clase X | 10% | 10% | 10% |
| Protón | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Penticton 10.7cm flujo
Observado 30 APR 103 Previsto 01 MAY-03 MAY 104/106/108 Media de 90 Días 30 APR 104
V. Índices Geomagnéticos A
OBSERVED AFR/AP 29 APR 005/006 ESTIMATED AFR/AP 30 APR 012/012 PREDICTED AFR/AP 01 MAY-03 MAY 020/018-030/030-015/015
VI. Probabilidades de Actividad Geomagnética 01 MAY a 03 MAY
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 30% | 20% | 30% |
| Tormenta Menor | 30% | 40% | 15% |
| Tormenta Mayor-Severa | 15% | 20% | 05% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 30% | 20% | 30% |
| Tormenta Menor | 40% | 45% | 15% |
| Tormenta Mayor-Severa | 15% | 20% | 05% |
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