Vaata kolmapäev, 26 september 2001 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 2001 Sep 26 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 269 Välja antud 2200Z kuni 26 Sep 2001IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 25-2100Z kuni 26-2100Z Solar activity has been moderate. Region 9628 (S18W26)
produced today's only M-class event, an M1 at 0258 UTC. The region
has shown a slight decline and simplification relative to yesterday,
but continues to be the largest on the disk and continues to have
strong, complex magnetic fields. Region 9632 (S19W08) also continues
to be impressive but produced only low-level C-class events. Region
9636 (N13E40) appears to be growing slowly and managed to produce a
couple subflares. New Region 9639 (N04E36) was assigned today and is
a simple beta-type sunspot group.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be
moderate. There is a fair chance, however, for an isolated major
flare event or proton producing event from either of Regions 9632 or
9628.
IIA. Summaarne geofüüsikaline aktiivsus 25-2100Z kuni 26-2100Z
The geomagnetic field has ranged from quiet to major storm levels
during the past 24 hours. Following yesterday's sudden storm
commencement at 2025 UTC, the geomagnetic field became disturbed,
and attained major storm levels between 2100-2400 UTC. Conditions
declined slightly from 0000-1200 UTC, with active to minor storm
levels predominating. Activity was quiet to unsettled for the
remainder of the period. The greater than 10 MeV proton event
continues in progress. A maximum flux of 12900 pfu was observed at
25/2235 UTC, after which the flux levels have been steadily
declining. The greater than 100 MeV proton event that began at
1440 UTC on the 24th attained maximum of 31 PFU at 25/0755 UTC and
ended at 26/1940 UTC.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to be mostly unsettled during the next three days. There is
a chance for some active periods during the next 12 hours due to
persistence. Unsettled levels should dominate on the second day.
There is a chance for some active periods on the third day due to
the favorable position of a solar coronal hole. The greater than 10
MeV proton event is expected to continue for the next 42-48 hours.
III. Sündmuste tõenäosus 27 Sepkuni 29 Sep
| Klass M | 80% | 80% | 80% |
| Klass X | 30% | 30% | 30% |
| Prooton | 99% | 90% | 50% |
| PCAF | in progress | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 26 Sep 283 Prognoositud 27 Sep-29 Sep 280/275/275 90 päeva keskmine 26 Sep 171
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 25 Sep 017/018 Hinnanguline Afr/Ap 26 Sep 022/025 Prognoositud Afr/Ap 27 Sep-29 Sep 015/010-010/010-015/015
VI. Geomagnetilised aktiivsuse tõenäosused 27 Sep kuni 29 Sep
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 35% | 30% | 35% |
| Väike torm | 20% | 15% | 25% |
| Suur-tõsine torm | 10% | 05% | 10% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 30% | 30% | 30% |
| Väike torm | 20% | 15% | 30% |
| Suur-tõsine torm | 15% | 05% | 20% |
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