Viewing archive of måndag, 25 augusti 2003
Solaktivitetsrapport
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.
Rapport för sol- och geofysisk aktivitet 2003 Aug 25 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 237 publicerat klockan 2200Z på 25 Aug 2003IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z Solar activity was low. There were two C-class flares
observed during the past 24 hours, a C1 at 24/2337 UTC from Region
436 (N07W39) and a C3/1f at 0259 UTC from Region 442 (S13E30). The
C3 flare was long duration and was associated with an erupting
prominence (located near S09E38). The event was followed by an
associated coronal mass ejection which was observed off the
southeast limb in C3 coronagraph data. New Region 445 (N04E38) was
assigned today.
IB. Prognos för solaktivitet
Solar activity is expected to be
predominantly low for the next three days. There is a slight chance
for an isolated M-class flare.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
The geomagnetic field ranged from unsettled to minor storm levels.
Today's activity was initially at active levels in response to a
high speed solar wind stream. Activity increased to minor storm
levels from 0600-0900 UTC, but then backed off to mostly unsettled
levels from 0900 through the end of the day. The greater than 2 MeV
electron flux was at high levels during the past 24 hours.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be unsettled with occasional active periods during the
next two days as the current disturbance persists. A decline to
mostly unsettled is expected on the third day.
III. Chans för solutbrott från 26 Aug till 28 Aug
| M-klass | 20% | 20% | 20% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 25 Aug 117 Prognoserat 26 Aug-28 Aug 120/120/125 90 Day Mean 25 Aug 127
V. Geomagnetiskt A-index
Observerad Afr/Ap 24 Aug 014/024 Förväntat Afr/Ap 25 Aug 020/023 Prognoserat Afr/Ap 26 Aug-28 Aug 015/015-015/012-012/012
VI. Chanser för geomagnetisk aktivitet från 26 Aug till 28 Aug
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 35% | 30% |
| Små stormförhållanden | 20% | 20% | 15% |
| Svåra stormförhållanden | 10% | 10% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 35% | 30% |
| Små stormförhållanden | 25% | 25% | 20% |
| Svåra stormförhållanden | 15% | 15% | 10% |
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