Viendo archivo del domingo, 20 mayo 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 May 20 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 141 Publicado el 2200Z a las 20 May 2012IA. Análisis de regiones solares activas y de actividad desde 19-2100Z hasta 20-2100Z Solar activity was at very low levels. New Region 1487
(N19W05) emerged on the disk as a simple bi-polar group. Region 1483
(S25W43) developed additional trailer spots and is now classified as
a D-type group. All other regions were quiet and stable. No
Earth-directed CMEs were observed during the period.
IB. Pronóstico de la actividad solar
Solar activity is expected to be at
predominately low levels for the next three days (21 - 23 May). A
slight chance for M-class activity exists all three days.
IIA. Resumen de la actividad geofísica 19-2100Z a 20-2100Z
The geomagnetic field was at quiet to active levels with an isolated
minor storm interval during the 20/0300 - 0600Z period. At about
20/0136Z, the ACE satellite observed an interplanetary (IP) shock
passage with a corresponding weak sudden impulse observed at the
Boulder magnetometer (15 nT) at 20/0215Z. Prior to the IP shock,
solar wind velocities were generally in the 400 km/s range, the Bz
component of the interplanetary magnetic field (IMF) varied between
+/- 3 nT and the total field (Bt) was at 5 nT. Following the shock,
wind speeds increased to about 475 km/s, Bz varied between +/- 8 nT
and Bt increased to about 8 nT. The shock likely indicated the
arrival of the 17 May CME.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to be at predominately quiet levels for day one (21 May).
By days two and three (22 - 23 May), quiet to unsettled levels with
a slight chance for isolated active periods are expected due to
coronal hole high speed stream effects coupled with the arrival of
the 18 May CME.
III. Probabilidades del evento 21 May a 23 May
| Clase M | 15% | 15% | 15% |
| Clase X | 05% | 05% | 05% |
| Protón | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7cm flujo
Observado 20 May 131 Previsto 21 May-23 May 130/130/135 Media de 90 Días 20 May 116
V. Índices Geomagnéticos A
Observado Afr/Ap 19 May 005/005 Estimado Afr/Ap 20 May 010/012 Previsto Afr/Ap 21 May-23 May 007/006-010/010-007/010
VI. Probabilidades de Actividad Geomagnética 21 May a 23 May
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 10% | 20% | 20% |
| Tormenta Menor | 01% | 10% | 10% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 10% | 25% | 25% |
| Tormenta Menor | 01% | 15% | 15% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
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