Viendo archivo del martes, 24 abril 2012
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 2012 Apr 24 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 115 Publicado el 2200Z a las 24 Apr 2012IA. Análisis de regiones solares activas y de actividad desde 23-2100Z hasta 24-2100Z Solar activity has been at low levels for the past 24
hours with multiple C-class x-ray events. A C3 flare was observed at
24/0745Z off the east limb from new Region 1467 (N14E72). Associated
with this event, were both a type II radio sweep (estimated shock
velocity of 1029 km/s) and a non-Earth directed CME. Two other new
regions were numbered today, Region 1468 (N09E12) which rapidly
emerged on the disk and Region 1469 (S21E68), which rotated onto the
disk. The remaining active regions were stable and quiet today,
except for Region 1465 (S19W12). Region 1465 showed a consolidation
of both leader and follower spot groups into one cluster and is now
classified as a beta-gamma-delta.
IB. Pronóstico de la actividad solar
Solar activity is expected to be at
low levels with a slight chance for M-class activity for the next
three days (25 - 27 April).
IIA. Resumen de la actividad geofísica 23-2100Z a 24-2100Z
The geomagnetic field ranged from quiet to major storm levels during
the past 24 hours due to continued CME effects and the arrival of a
coronal hole high speed stream (CH HSS). Early in the period,
measurements from the ACE spacecraft showed extensive southward
(negative) periods of the Bz component of the IMF. Even though solar
wind speeds remained well below nominal levels, these periods drove
the majority of the geomagnetic activity. Around 24/0200Z, CH HSS
characteristics were observed by the ACE spacecraft with solar wind
density dropping off as the solar wind speed increased. At the time
of this report, solar wind speeds had increased from around 350 km/s
to around 630 km/s.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to be at quiet to active levels on day one (25 April) as
the effects of a CH HSS continue. An increase to active with a
chance for isolated minor storm periods is expected on day two (26
April) as the CME from 23 April is expected to become geoeffective.
Quiet to unsettled levels are expected on day three (27 April) as
effects of the CME wane.
III. Probabilidades del evento 25 Apr a 27 Apr
| Clase M | 20% | 20% | 20% |
| Clase X | 01% | 01% | 01% |
| Protón | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7cm flujo
Observado 24 Apr 134 Previsto 25 Apr-27 Apr 130/130/125 Media de 90 Días 24 Apr 112
V. Índices Geomagnéticos A
Observado Afr/Ap 23 Apr 021/030 Estimado Afr/Ap 24 Apr 021/031 Previsto Afr/Ap 25 Apr-27 Apr 012/018-017/022-011/015
VI. Probabilidades de Actividad Geomagnética 25 Apr a 27 Apr
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 25% | 40% | 25% |
| Tormenta Menor | 10% | 20% | 10% |
| Tormenta Mayor-Severa | 01% | 05% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 45% | 50% | 40% |
| Tormenta Menor | 25% | 30% | 25% |
| Tormenta Mayor-Severa | 15% | 15% | 10% |
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