Viendo archivo del miércoles, 20 abril 2011
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 2011 Apr 20 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 110 Publicado el 2200Z a las 20 Apr 2011IA. Análisis de regiones solares activas y de actividad desde 19-2100Z hasta 20-2100Z Solar activity has been at low levels for the past 24
hours. Regions 1195 (S17E55) and 1193 (N16W20) remain areas of
interest producing several B/C class events. The largest event was a
C4/Sf at 20/1939Z from Region 1195. Behind Region 1195, just
rotating onto the east limb, New Region 1196 (S27E69) is already
producing C-class events. Note: The Penticton 10.7 cm radio flux
appears to be flare enhanced.
IB. Pronóstico de la actividad solar
Solar activity is expected to be at
low levels with a slight chance for M-class events for the next
three days (21-23 April).
IIA. Resumen de la actividad geofísica 19-2100Z a 20-2100Z
The geomagnetic field has been unsettled to active with isolated
minor storm periods observed at high latitudes. The increase in
activity was due to the arrival of a coronal hole high-speed stream
(CH HSS). Observations at the ACE spacecraft, over the past 24
hours, have shown the solar wind speed increase from 350-550 km/s
and back down 500 km/s.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to be at quiet to unsettled levels for the next 2 days
(21-22 April) as the effects of the CH HSS subside. Late on 21
April, a slow moving CME is expected to become geoeffective with
quiet to unsettled conditions lasting for 24 hours. On day three (23
April), quiet conditions are expected to prevail.
III. Probabilidades del evento 21 Apr a 23 Apr
| Clase M | 15% | 15% | 15% |
| Clase X | 01% | 01% | 01% |
| Protón | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7cm flujo
Observado 20 Apr 117 Previsto 21 Apr-23 Apr 115/115/115 Media de 90 Días 20 Apr 104
V. Índices Geomagnéticos A
Observado Afr/Ap 19 Apr 004/006 Estimado Afr/Ap 20 Apr 010/010 Previsto Afr/Ap 21 Apr-23 Apr 010/010-008/008-005/005
VI. Probabilidades de Actividad Geomagnética 21 Apr a 23 Apr
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 25% | 20% | 10% |
| Tormenta Menor | 05% | 05% | 01% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 30% | 20% | 10% |
| Tormenta Menor | 10% | 10% | 01% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
All times in UTC
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