Viendo archivo del domingo, 18 enero 2004
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 2004 Jan 18 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 018 Publicado el 2200Z a las 18 Jan 2004IA. Análisis de regiones solares activas y de actividad desde 17-2100Z hasta 18-2100Z Solar activity was moderate. Region 540 (S14E02)
produced an M1/1n flare at 18/0017Z. Moderate to strong radio bursts
accompanied this flare including a 190 sfu Tenflare and a large
23,000 sfu burst on 245 MHz. A Type II radio sweep was also observed
with a shock speed of near 1000 km/s. This beta-gamma spot group has
not changed much over the past 48 hours, although some new growth
was noted in the trailer spots. Region 537 (N04W83) was quite active
this period as it approached the west limb. It produced occasional
C-class activity including a C3 flare and CME at 18/2003Z. Remaining
regions were stable.
IB. Pronóstico de la actividad solar
Solar activity is expected to be low
to moderate. Moderately complex Region 540 has potential for
isolated M-class flares. Further C-class activity is expected from
Region 537 on the west limb.
IIA. Resumen de la actividad geofísica 17-2100Z a 18-2100Z
The geomagnetic field was quiet to active. A coronal hole high speed
stream continues with solar wind speed ranging from 520 to 620 km/s.
The IMF Bz was predominantly northward; however, periods of
southward Bz occurred inciting the occasional active periods. The
greater than 2 MeV electron flux at geosynchronous orbit reached
high levels again today.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to range from quiet to minor storming over the next three
days. The high speed solar wind stream in progress now is expected
to persist through 19 January and produce occasional active periods.
The M5 flare that occurred on 17 January did produce a CME, but
LASCO imagery shows that most of the ejecta is southward directed.
Some weak impacts are expected on 20 January from this CME, but the
disturbance should be limited to occasional active periods with
isolated high latitude minor storming. Quiet to unsettled levels are
expected on 21 January with isolated active periods possible.
III. Probabilidades del evento 19 Jan a 21 Jan
| Clase M | 01% | 01% | 01% |
| Clase X | 01% | 01% | 01% |
| Protón | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7cm flujo
Observado 18 Jan 120 Previsto 19 Jan-21 Jan 120/115/115 Media de 90 Días 18 Jan 138
V. Índices Geomagnéticos A
Observado Afr/Ap 17 Jan 009/014 Estimado Afr/Ap 18 Jan 012/016 Previsto Afr/Ap 19 Jan-21 Jan 010/012-015/025-012/015
VI. Probabilidades de Actividad Geomagnética 19 Jan a 21 Jan
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 25% | 30% | 25% |
| Tormenta Menor | 10% | 15% | 10% |
| Tormenta Mayor-Severa | 05% | 05% | 05% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 30% | 40% | 35% |
| Tormenta Menor | 15% | 20% | 15% |
| Tormenta Mayor-Severa | 05% | 10% | 05% |
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