Vaata pühapäev, 25 aprill 2004 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 2004 Apr 25 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 116 Välja antud 2200Z kuni 25 Apr 2004IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 24-2100Z kuni 25-2100Z Solar activity was moderate. Region 599 (N16E28)
produced an M2/1N flare today at 0537 UTC, as well as a number of
smaller, C-class events. The group continued to grow today, and
shows some magnetic complexity, particularly just behind the large
leader spot where smaller spots of opposite polarity are in close
proximity. Most of the flare brightenings occurred along an
east-west inversion line in the mid-to-trailing portion of the
region. Region 536 (S08W36) is still the largest group on the disk,
but was quiet and appears to be slowly decaying.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be
mostly low, but there is a fair chance for an additional, isolated
M-class event during the next three days from Region 599.
IIA. Summaarne geofüüsikaline aktiivsus 24-2100Z kuni 25-2100Z
The geomagnetic field was mostly unsettled. There was an isolated
active period at high latitudes from 0600-0900 UTC. Solar wind data
show continuation of a weak, high-speed stream, with velocities
ranging mostly between 500-550 km/s.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field should
persist at the current, mostly unsettled levels for the next 24-36
hours (26 April to partway through 27 April). A decrease is expected
to begin partway through the 2nd day (27 April) and quiet to
unsettled levels should prevail on the third day (28 April).
III. Sündmuste tõenäosus 26 Aprkuni 28 Apr
| Klass M | 35% | 35% | 35% |
| Klass X | 05% | 05% | 05% |
| Prooton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 25 Apr 107 Prognoositud 26 Apr-28 Apr 110/110/110 90 päeva keskmine 25 Apr 107
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 24 Apr 007/011 Hinnanguline Afr/Ap 25 Apr 010/010 Prognoositud Afr/Ap 26 Apr-28 Apr 012/012-010/010-005/008
VI. Geomagnetilised aktiivsuse tõenäosused 26 Apr kuni 28 Apr
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 20% | 15% |
| Väike torm | 20% | 15% | 10% |
| Suur-tõsine torm | 10% | 05% | 05% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 35% | 30% | 25% |
| Väike torm | 25% | 20% | 15% |
| Suur-tõsine torm | 15% | 10% | 05% |
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