Viendo archivo del viernes, 27 abril 2007
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 2007 Apr 27 2203 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 117 Publicado el 2200Z a las 27 Apr 2007IA. Análisis de regiones solares activas y de actividad desde 26-2100Z hasta 27-2100Z Solar activity was very low during the past 24 hours.
Region 953 (S10E49) produced several B-class events during the past
24 hours. As the region has rotated more fully into view, it now
appears that the group consists mostly of a large penumbral area
which contains opposite magnetic polarities, making the group a
beta-delta magnetic classification.
IB. Pronóstico de la actividad solar
Solar activity is expected to be very
low to low for the next three days (28-30 April), with a slight
chance for an isolated M-class event from Region 953.
IIA. Resumen de la actividad geofísica 26-2100Z a 27-2100Z
The geomagnetic field was quiet to active during the past 24 hours.
An initially quiet to unsettled field became unsettled to active
with the onset of a high speed solar wind stream around 1500Z. Solar
wind velocity increased to about 600 km/s and the interplanetary
magnetic field showed fluctuations from about -9 nT to +7 nT.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to be mostly active with a chance for isolated minor storm
periods for the next 24 hours (28 April) as the high speed stream is
expected to continue. Unsettled levels with a chance for active
periods is expected for the second day (29 April) and conditions
should decline to mostly unsettled by the third day (30 April).
III. Probabilidades del evento 28 Apr a 30 Apr
| Clase M | 15% | 15% | 15% |
| Clase X | 01% | 01% | 01% |
| Protón | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7cm flujo
Observado 27 Apr 083 Previsto 28 Apr-30 Apr 085/085/085 Media de 90 Días 27 Apr 074
V. Índices Geomagnéticos A
Observado Afr/Ap 26 Apr 004/006 Estimado Afr/Ap 27 Apr 008/012 Previsto Afr/Ap 28 Apr-30 Apr 020/030-015/015-010/010
VI. Probabilidades de Actividad Geomagnética 28 Apr a 30 Apr
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 45% | 30% | 15% |
| Tormenta Menor | 25% | 15% | 05% |
| Tormenta Mayor-Severa | 10% | 05% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 45% | 30% | 20% |
| Tormenta Menor | 30% | 20% | 15% |
| Tormenta Mayor-Severa | 15% | 10% | 05% |
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