Vaata pühapäev, 18 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 18 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 018 Välja antud 2200Z kuni 18 Jan 2004IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 17-2100Z kuni 18-2100Z Solar activity was moderate. Region 540 (S14E02)
produced an M1/1n flare at 18/0017Z. Moderate to strong radio bursts
accompanied this flare including a 190 sfu Tenflare and a large
23,000 sfu burst on 245 MHz. A Type II radio sweep was also observed
with a shock speed of near 1000 km/s. This beta-gamma spot group has
not changed much over the past 48 hours, although some new growth
was noted in the trailer spots. Region 537 (N04W83) was quite active
this period as it approached the west limb. It produced occasional
C-class activity including a C3 flare and CME at 18/2003Z. Remaining
regions were stable.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be low
to moderate. Moderately complex Region 540 has potential for
isolated M-class flares. Further C-class activity is expected from
Region 537 on the west limb.
IIA. Summaarne geofüüsikaline aktiivsus 17-2100Z kuni 18-2100Z
The geomagnetic field was quiet to active. A coronal hole high speed
stream continues with solar wind speed ranging from 520 to 620 km/s.
The IMF Bz was predominantly northward; however, periods of
southward Bz occurred inciting the occasional active periods. The
greater than 2 MeV electron flux at geosynchronous orbit reached
high levels again today.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to range from quiet to minor storming over the next three
days. The high speed solar wind stream in progress now is expected
to persist through 19 January and produce occasional active periods.
The M5 flare that occurred on 17 January did produce a CME, but
LASCO imagery shows that most of the ejecta is southward directed.
Some weak impacts are expected on 20 January from this CME, but the
disturbance should be limited to occasional active periods with
isolated high latitude minor storming. Quiet to unsettled levels are
expected on 21 January with isolated active periods possible.
III. Sündmuste tõenäosus 19 Jankuni 21 Jan
| Klass M | 01% | 01% | 01% |
| Klass X | 01% | 01% | 01% |
| Prooton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 18 Jan 120 Prognoositud 19 Jan-21 Jan 120/115/115 90 päeva keskmine 18 Jan 138
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 17 Jan 009/014 Hinnanguline Afr/Ap 18 Jan 012/016 Prognoositud Afr/Ap 19 Jan-21 Jan 010/012-015/025-012/015
VI. Geomagnetilised aktiivsuse tõenäosused 19 Jan kuni 21 Jan
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 30% | 25% |
| Väike torm | 10% | 15% | 10% |
| Suur-tõsine torm | 05% | 05% | 05% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 40% | 35% |
| Väike torm | 15% | 20% | 15% |
| Suur-tõsine torm | 05% | 10% | 05% |
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