Viendo archivo del sábado, 29 septiembre 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 Sep 29 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 272 Publicado el 2200Z a las 29 Sep 2001IA. Análisis de regiones solares activas y de actividad desde 28-2100Z hasta 29-2100Z Solar activity has been moderate. Two M1/1f flares
were observed -- the first at 28/2125 UTC from Region 9634 (N12W15),
and the second a long duration event at 29/1106 UTC from Region 9636
(N13W02). For the latter event, SOHO/LASCO imagery suggests an
associated faint halo with an earthward-directed component possible.
Region 9628 (S17W62), the largest on the visible disk, also
produced several optical flares with strong C-level enhancements
throughout the first half of the period. New Region 9642 (N03E70)
was numbered today.
IB. Pronóstico de la actividad solar
Solar activity is expected to be
predominantly moderate over the next three days. Isolated major
flares are possible, particularly from Region 9628 and nearby Region
9632 (S18W48).
IIA. Resumen de la actividad geofísica 28-2100Z a 29-2100Z
Geomagnetic field activity has been quiet to active. A 17 nT sudden
impulse was observed on the Boulder magnetometer at 29/0940 UTC,
preceded by an earlier shock passage observed on the ACE satellite.
Several active periods occurred through the remainder of the day.
Solar wind speed remains elevated and IMF signatures suggest the
predominant influence of a coronal hole high speed stream. The
proton event which began on 25 September remains in progress but
continues to wane, with current 10MeV flux levels at about 25 pfu.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to be predominantly active for the next two days, under the
combined influence of high speed stream effects and possible
transient shock passages from the CME activity of 28 September.
Isolated minor storm conditions may occur at higher latitudes during
this period. Today's CME activity may further result in additional
shock passage effects on day three. The proton event in progress is
expected to end within the next 24 to 36 hours, barring further
enhancement from any major flares.
III. Probabilidades del evento 30 Sep a 02 Oct
| Clase M | 80% | 80% | 80% |
| Clase X | 25% | 25% | 25% |
| Protón | 99% | 50% | 20% |
| PCAF | yellow | ||
IV. Penticton 10.7cm flujo
Observado 29 Sep 240 Previsto 30 Sep-02 Oct 240/240/235 Media de 90 Días 29 Sep 175
V. Índices Geomagnéticos A
Observado Afr/Ap 28 Sep 010/013 Estimado Afr/Ap 29 Sep 015/020 Previsto Afr/Ap 30 Sep-02 Oct 020/030-020/020-018/018
VI. Probabilidades de Actividad Geomagnética 30 Sep a 02 Oct
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 30% | 30% | 25% |
| Tormenta Menor | 15% | 15% | 10% |
| Tormenta Mayor-Severa | 10% | 10% | 10% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 35% | 35% | 30% |
| Tormenta Menor | 20% | 20% | 15% |
| Tormenta Mayor-Severa | 15% | 10% | 10% |
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