Vaata laupäev, 17 jaanuar 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 Jan 17 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 017 Välja antud 2200Z kuni 17 Jan 2004IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 16-2100Z kuni 17-2100Z Solar activity reached high levels this period. Region
540 (S14E15), the source of several low C-class flares throughout
the period, produced an M5 flare at 17/1750Z. Moderate to strong
radio bursts accompanied this flare, including a 580 sfu Tenflare
and an extraordinary 270,000 sfu burst on 245 MHz (observed at both
Sagamore Hill and Palehua observatories). A Type II radio sweep (784
km/s) was also observed. Region 540 is a moderate size group of
approximately 350 millionths of white light areal coverage with
minor magnetic mixing. Region 537 (N04W70) continues in a slow decay
phase as it approaches the west limb. Isolated C-class activity was
observed from this region. No other significant activity was noted.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be low
to moderate. Isolated M-class activity is possible from Region 540.
IIA. Summaarne geofüüsikaline aktiivsus 16-2100Z kuni 17-2100Z
The geomagnetic field was quiet to active. A coronal hole high speed
stream is responsible for the weak disturbed periods. The IMF Bz was
predominantly northward which offset the geomagnetic effects of the
high speed flow. The greater than 2 MeV electron flux at
geosynchronous orbit was at high levels today.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to continue at quiet to active levels through 18 January as
the high speed stream subsides. Quiet to unsettled conditions are
expected on 19 January. A disturbance associated with today's M5
flare, is expect to begin on 20 January. Active to minor storm
conditions are expected.
III. Sündmuste tõenäosus 18 Jankuni 20 Jan
| Klass M | 20% | 20% | 20% |
| Klass X | 05% | 05% | 05% |
| Prooton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 17 Jan 123 Prognoositud 18 Jan-20 Jan 125/120/110 90 päeva keskmine 17 Jan 139
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 16 Jan 021/026 Hinnanguline Afr/Ap 17 Jan 015/016 Prognoositud Afr/Ap 18 Jan-20 Jan 015/015-010/012-020/020
VI. Geomagnetilised aktiivsuse tõenäosused 18 Jan kuni 20 Jan
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 20% | 30% |
| Väike torm | 10% | 05% | 20% |
| Suur-tõsine torm | 01% | 01% | 05% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 25% | 35% |
| Väike torm | 15% | 10% | 25% |
| Suur-tõsine torm | 05% | 05% | 10% |
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