Viendo archivo del miércoles, 25 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 25 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 116 Publicado el 2200Z a las 25 Apr 2012IA. Análisis de regiones solares activas y de actividad desde 24-2100Z hasta 25-2100Z Solar activity was at low levels. Region 1459 (S16W65)
produced a C1 x-ray event at 25/0224Z while Region 1460 (N15W81)
produced a C3/Sf at 25/1215Z. Region 1465 (S17W26) indicated
consolidation in both its leader and trailer spots. The region
appeared to have lost its gamma and delta magnetic configuration,
but still maintained an east to west oriented inversion line. No
discernible changes were noted in the remaining regions. No
Earth-directed CMEs were observed during the period.
IB. Pronóstico de la actividad solar
Solar activity is expected to remain
at low levels with a slight chance for M-class activity for the next
three days (26 - 28 April).
IIA. Resumen de la actividad geofísica 24-2100Z a 25-2100Z
The geomagnetic field ranged from quiet to minor storm conditions
with an isolated high latitude severe storm period observed during
25/0600Z - 0900Z. This activity was due to coronal hole high speed
stream affects (CH HSS). Over the past 24 hours, solar wind
velocities gradually increased from about 600 km/s to near 800 km/s.
Total field strength (Bt) varied between 5 to 12 nT while the Bz
component of the interplanetary magnetic field remained mostly south
from -4 to -10 nT. The greater than 2 MeV electron flux at
geosynchronous orbit reached high levels during the period.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to be at quiet to active levels with isolated minor storm
periods on day one (26 April) as the 23 April CME is expected to
become geoeffective. Quiet to unsettled levels with isolated active
periods are expected on day two (27 April) as effects of the CME
wane. By day three (28 April), mostly quiet conditions are expected.
III. Probabilidades del evento 26 Apr a 28 Apr
| Clase M | 20% | 20% | 20% |
| Clase X | 01% | 01% | 01% |
| Protón | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7cm flujo
Observado 25 Apr 127 Previsto 26 Apr-28 Apr 125/120/120 Media de 90 Días 25 Apr 112
V. Índices Geomagnéticos A
Observado Afr/Ap 24 Apr 030/043 Estimado Afr/Ap 25 Apr 018/022 Previsto Afr/Ap 26 Apr-28 Apr 017/025-011/015-004/006
VI. Probabilidades de Actividad Geomagnética 26 Apr a 28 Apr
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 50% | 25% | 10% |
| Tormenta Menor | 20% | 10% | 01% |
| Tormenta Mayor-Severa | 10% | 05% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 40% | 30% | 10% |
| Tormenta Menor | 30% | 15% | 01% |
| Tormenta Mayor-Severa | 15% | 10% | 01% |
All times in UTC
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