Vaata reede, 25 oktoober 2002 arhiivi
Päikese aktiivsuse aruanne
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.
Päikese ja geofüüsikalise aktiivsuse aruanne 2002 Oct 25 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 298 Välja antud 2200Z kuni 25 Oct 2002IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 24-2100Z kuni 25-2100Z Solar activity increased to moderate levels. Region
162 (N26W18) produced a long duration M1.5/1f event at 25/1747 UTC
along with multiple C-class flares today. The M1.5/1f flare
produced an associated Type II (estimated shock velocity of 389
km/s) and a Type IV radio sweep. SOHO/LASCO imagery was
insufficient at the time of this writing to determine whether an
earth-directed CME accompanied this flare. This region retains a
small delta magnetic structure that has underwent slight decay since
yesterday. A disappearing solar filament (approximately 67
heliographic degrees) was seen to dissipate around 25/0600 UTC in
the southeast quadrant of the disk. Two separate H-class spot
groups were newly assigned today, Regions 170 (S12E65) and 171
(N10E76).
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be at
moderate levels due to the magnetic complexity of Region 162.
IIA. Summaarne geofüüsikaline aktiivsus 24-2100Z kuni 25-2100Z
The geomagnetic field was at unsettled to major storm levels. The
large coronal hole in the western solar hemisphere continues to
elevate the high speed solar wind (approximate average speed of 700
km/s). The greater than 2 MeV electron flux at geosynchronous orbit
reached moderate levels today.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to be at quiet to minor storm levels. The coronal hole
high speed stream effects should persist through day one and into
day two of the forecast period, returning to predominantly quiet to
unsettled conditions by day three.
III. Sündmuste tõenäosus 26 Octkuni 28 Oct
| Klass M | 50% | 50% | 50% |
| Klass X | 05% | 05% | 05% |
| Prooton | 05% | 05% | 05% |
| PCAF | yellow | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 25 Oct 173 Prognoositud 26 Oct-28 Oct 170/170/170 90 päeva keskmine 25 Oct 179
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 24 Oct 022/047 Hinnanguline Afr/Ap 25 Oct 035/040 Prognoositud Afr/Ap 26 Oct-28 Oct 025/025-015/015-010/012
VI. Geomagnetilised aktiivsuse tõenäosused 26 Oct kuni 28 Oct
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 40% | 25% | 20% |
| Väike torm | 10% | 10% | 05% |
| Suur-tõsine torm | 05% | 05% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 50% | 30% | 25% |
| Väike torm | 15% | 15% | 05% |
| Suur-tõsine torm | 10% | 05% | 01% |
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