Vaata laupäev, 24 september 2011 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 2011 Sep 24 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 267 Välja antud 2200Z kuni 24 Sep 2011IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 23-2100Z kuni 24-2100Z Solar activity was high. Region 1302 (N12E47) produced
a X1/2b flare at 24/0940Z, a M7 long duration x-ray flare at
24/1320Z, and a M5 x-ray flare at 24/2036Z. Coronal mass ejections
(CMEs) were observed in association with the first two of these
events. The second CME, which was must faster, appears to overtake
the first, and has a partial halo signature from the LASCO/Earth
perspective. Estimate speeds of the CME range between 1900 - 2600
km/s. Region 1302 produced three other flares greater than M1 during
the period. Region 1295 (N26W84) produced a M3 x-ray flare at
24/1725Z. Another large sunspot is beginning to emerge around the
East limb of the disk near N15.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be high
to very high for the next 3 days (25-27 September) due to the
activity produced by Region 1302.
IIA. Summaarne geofüüsikaline aktiivsus 23-2100Z kuni 24-2100Z
The geomagnetic field was quiet. The greater than 10MeV proton flux
at geosynchronous orbit exceeded the 10 pfu threshold at 23/2255Z,
peaked at 12 pfu during the day, and remains above threshold at the
time of this report. The noon F10 solar flux was observed at 190,
but is believed to be enhanced by the flares which occurred today.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to be mostly quiet to unsettled on day 1 (25 September) due
to recurrent coronal hole effects. Conditions are forecast to
increase to unsettled to minor storm levels with the chance for a
major storm starting late on day 1 through midday on day 2 (26
September) due to the anticipated partial impact from the CME from
earlier today. Conditions are forecast to carry over to day 3 (27
September) with mostly unsettled to active periods expected. The
greater than 10 MeV proton flux is expected to remain above the 10
pfu threshold for days 1 and 2, before decreasing on day 3.
III. Sündmuste tõenäosus 25 Sepkuni 27 Sep
| Klass M | 80% | 80% | 80% |
| Klass X | 40% | 40% | 40% |
| Prooton | 99% | 99% | 80% |
| PCAF | yellow | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 24 Sep 190 Prognoositud 25 Sep-27 Sep 160/160/160 90 päeva keskmine 24 Sep 107
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 23 Sep 002/003 Hinnanguline Afr/Ap 24 Sep 005/005 Prognoositud Afr/Ap 25 Sep-27 Sep 010/010-025/030-012/012
VI. Geomagnetilised aktiivsuse tõenäosused 25 Sep kuni 27 Sep
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 40% | 10% | 10% |
| Väike torm | 30% | 50% | 40% |
| Suur-tõsine torm | 01% | 30% | 20% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 40% | 10% | 10% |
| Väike torm | 30% | 60% | 60% |
| Suur-tõsine torm | 01% | 30% | 30% |
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