Vaata laupäev, 11 mai 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 May 11 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 131 Välja antud 2200Z kuni 11 May 2002IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 10-2100Z kuni 11-2100Z Solar activity was at moderate levels. Region 9937
(S09W38) produced an M1/Sf flare at 11/1132 UTC with an associated
Type II radio sweep of 415 km/s and minor discrete radio bursts.
Increased magnetic complexity is apparent in this region with the
hint of a delta forming in the dominant spot, seen in the trailing
portion of spot cluster. Region 9934 (S17W59) was fairly active
today, producing multiple C-class flares. The largest was a C3/Sf
flare occurring at 11/1738 UTC. This region remains the most
complex region on the disk. New Region 9950 (S06E44) produced a
C2/Sf flare at 11/1650 UTC. Region 9949 (S16W06) is also a newly
numbered region.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be low
to moderate. Regions 9934 and 9937 are both complex enough to
produced M-class flare activity.
IIA. Summaarne geofüüsikaline aktiivsus 10-2100Z kuni 11-2100Z
The geomagnetic field was at quiet to major storm levels. Data from
the Advanced Composition Explorer (ACE) showed an increase in the
solar wind speed from roughly 350 to 450 km/s beginning at
approximately 11/0915 UTC. The north-south component of the
interplanetary magnetic field remained strongly negative for several
hours thereafter. A sudden impulse of 41 nT was observed at the
Boulder Magnetometer at 11/1028 UTC. Major storm conditions were
observed at high latitudes from 11/1100 through 11/1800 UTC.
Uncertain as to the source(s) of the activity, although multiple
CME's were seen in SOHO/LASCO imagery on the eighth and ninth.
Source regions for CME's believed to have been from both the east
and west limbs.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field activity
is expected to be at predominantly quiet to unsettled levels.
Isolated minor storm conditions may occur on day three of the
forecast due to the M1/Sf flare that occurred at 11/1132 UTC.
III. Sündmuste tõenäosus 12 Maykuni 14 May
| Klass M | 60% | 60% | 50% |
| Klass X | 15% | 15% | 05% |
| Prooton | 10% | 10% | 01% |
| PCAF | green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 11 May 188 Prognoositud 12 May-14 May 190/195/190 90 päeva keskmine 11 May 187
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 10 May 019/017 Hinnanguline Afr/Ap 11 May 035/040 Prognoositud Afr/Ap 12 May-14 May 012/015-008/010-012/012
VI. Geomagnetilised aktiivsuse tõenäosused 12 May kuni 14 May
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 25% | 20% | 25% |
| Väike torm | 05% | 05% | 05% |
| Suur-tõsine torm | 01% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 20% | 30% |
| Väike torm | 10% | 05% | 10% |
| Suur-tõsine torm | 05% | 01% | 05% |
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