Viendo archivo del lunes, 26 julio 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 Jul 26 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 208 Publicado el 2200Z a las 26 Jul 2004IA. Análisis de regiones solares activas y de actividad desde 25-2100Z hasta 26-2100Z Solar activity was moderate. Region 652 (N08W47)
produced two M-class flares - an M1/Sf at 26/0552Z, and an M1/2n at
26/1730Z. This region continues in a slow decay phase, but still
exceeds 1000 millionths of white light area coverage in a moderately
complex beta-gamma-delta configuration. Growth was observed in
newly numbered Region 654 (N07E38), but no activity of note has
occurred. The remainder of the disk and limb was quiet.
IB. Pronóstico de la actividad solar
Solar activity is expected to be
moderate. Region 652 will likely produce further M-class activity
and still maintains potential for a major flare.
IIA. Resumen de la actividad geofísica 25-2100Z a 26-2100Z
The geomagnetic field ranged from quiet to severe storm levels. The
severe geomagnetic storm that occurred yesterday, continued into the
early hours of this period. Major to severe geomagnetic storm
periods were observed through 26/0300Z. Solar wind speed remained
elevated from 500 to over 700 km/s, but IMF Bz was generally around
zero from 0300Z through the end of the period. Consequently, the
geomagnetic field was mostly quiet to unsettled. The greater than 10
MeV proton event that began yesterday at 25/1855Z, is still in
progress. The peak so far was 271 pfu at 26/1905Z. The greater than
2 MeV electrons at geosynchronous orbit reached high levels today.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is
expected to range from quiet to major storm levels. A full halo CME
was observed on LASCO imagery following yesterday's long duration M1
flare at 25/1514Z. This CME will likely impact the geomagnetic field
early on 27 July. Expect minor to major storm periods at all
latitudes and severe storm levels at high latitudes. The storm is
expected to end by 28 July. Mostly unsettled to active conditions
are expected on 28 July. A return to quiet to unsettled levels is
expected on 29 July with isolated high latitude active periods
possible. The greater than 10 MeV proton event in progress now will
likely end on 28 July.
III. Probabilidades del evento 27 Jul a 29 Jul
| Clase M | 65% | 65% | 50% |
| Clase X | 15% | 10% | 10% |
| Protón | 99% | 25% | 10% |
| PCAF | red | ||
IV. Penticton 10.7cm flujo
Observado 26 Jul 128 Previsto 27 Jul-29 Jul 125/120/115 Media de 90 Días 26 Jul 105
V. Índices Geomagnéticos A
Observado Afr/Ap 25 Jul 064/122 Estimado Afr/Ap 26 Jul 020/040 Previsto Afr/Ap 27 Jul-29 Jul 060/055-025/030-015/020
VI. Probabilidades de Actividad Geomagnética 27 Jul a 29 Jul
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 20% | 40% | 20% |
| Tormenta Menor | 40% | 20% | 10% |
| Tormenta Mayor-Severa | 40% | 10% | 05% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 20% | 50% | 30% |
| Tormenta Menor | 30% | 25% | 15% |
| Tormenta Mayor-Severa | 50% | 15% | 05% |
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