Viendo archivo del miércoles, 26 diciembre 2001
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 2001 Dec 26 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 360 Publicado el 2200Z a las 26 Dec 2001IA. Análisis de regiones solares activas y de actividad desde 25-2100Z hasta 26-2100Z Solar activity was high. Region 9742 (N12W68) produced
an M7/1b proton flare at 26/0540 UTC. The flare was associated with
strong type II/IV sweeps and a 2600 sfu burst at 2695 MHz. This
Region also produced several other flares this past day including an
M1/1f at 26/1226 UTC and an M1/Sf at 26/1718 UTC. Small flares also
occurred in Regions 9748 (S10W48), 9751 (N04E04), and 9754 (S09E24).
Several small new regions were numbered -- 9756 (S28E72), 9757
(S09E02), 9758 (N13E20), 9759 (N17E28), 9760 (N06E35), and 9761
(N09E75).
IB. Pronóstico de la actividad solar
Solar activity is expected to be
moderate to high. Another major flare is possible in Region 9742.
M-class flares are also possible in Regions 9748, 9751, and 9754.
IIA. Resumen de la actividad geofísica 25-2100Z a 26-2100Z
The geomagnetic field was quiet to unsettled. Greater than 100 MeV
and 10 MeV proton events occurred in association with the major
flare discussed in part IA. The greater than 100 MeV event started
at 26/0555 UTC, reached a peak of 50 pfu at 26/0720 UTC, and dropped
below the 1 pfu event threshold at 26/1920 UTC. The greater than 10
MeV event started at 26/0605 UTC, reached a peak of 779 pfu at
26/1115 UTC, and continues in progress (current flux about 115 pfu).
This particle event was also associated with a GLE starting at about
26/0600 UTC and reaching a maximum at about 26/0620 UTC (8% at
Apatity, Oulu, and McMurdo, and 2% at Moscow). A Polar Cap
Absorption event (PCA) also occurred, reaching a peak absorption of
about 9 dB at 26/1115 UTC and continuing in progress at this
writing.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to be quiet to unsettled until the Earth encounters the CME
associated with today's major flare. Active to storm conditions are
expected to begin on 28 or 29 December. The bulk of the CME appeared
to be directed to the west which increases the uncertainty of the
begin time and eventual impact to the geomagnetic field.
III. Probabilidades del evento 27 Dec a 29 Dec
| Clase M | 80% | 80% | 80% |
| Clase X | 10% | 10% | 10% |
| Protón | 99% | 75% | 25% |
| PCAF | in progress | ||
IV. Penticton 10.7cm flujo
Observado 26 Dec 268 Previsto 27 Dec-29 Dec 265/260/255 Media de 90 Días 26 Dec 217
V. Índices Geomagnéticos A
Observado Afr/Ap 25 Dec 011/008 Estimado Afr/Ap 26 Dec 008/006 Previsto Afr/Ap 27 Dec-29 Dec 008/008-030/012-015/020
VI. Probabilidades de Actividad Geomagnética 27 Dec a 29 Dec
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 15% | 50% | 30% |
| Tormenta Menor | 05% | 25% | 10% |
| Tormenta Mayor-Severa | 05% | 10% | 10% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 20% | 50% | 50% |
| Tormenta Menor | 10% | 30% | 20% |
| Tormenta Mayor-Severa | 05% | 15% | 10% |
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