Vaata laupäev, 29 september 2012 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 2012 Sep 29 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 273 Välja antud 2200Z kuni 29 Sep 2012IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 28-2100Z kuni 29-2100Z Solar activity was at low levels. Numerous weak
C-class events were observed during the past 24 hours, mostly from
Regions 1575 (N07W73) and 1577 (N09W54). New Region 1583 (N13W75)
emerged on the disk as a simple bipolar group. No significant
changes were observed from the remainder of the disk and limb. No
Earth-directed CMEs were observed during the period.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be at
low levels with a slight chance for M-class activity all three days
of the forecast period (30 September - 02 October).
IIA. Summaarne geofüüsikaline aktiivsus 28-2100Z kuni 29-2100Z
The geomagnetic field was at quiet levels. ACE satellite
measurements indicated a steady decline in wind speed from about 325
km/s to near 275 km/s while the Bz component of the interplanetary
magnetic field did not vary much beyond +/- 3 nT. At about
29/0100Z, a solar sector boundary crossing from a negative (toward)
to a positive (away) orientation was observed.
IIB. Geofüüsikalise aktiivsuse ennustus
Geomagnetic field activity is
expected to be at predominately quiet levels through about midday on
day one (30 September). By late on day one, active levels with a
chance for minor to major storm periods are expected due to the
arrival of the Earth-directed CME observed early on 28 September.
On day two (01 October), continued minor to major storm conditions
are expected early in the day, decreasing to mostly quiet to
unsettled levels with a chance for isolated active periods as
effects from the CME wane. Predominately quiet to unsettled
conditions are expected on day three (02 October).
III. Sündmuste tõenäosus 30 Sepkuni 02 Oct
| Klass M | 10% | 10% | 10% |
| Klass X | 01% | 01% | 01% |
| Prooton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 29 Sep 136 Prognoositud 30 Sep-02 Oct 135/130/125 90 päeva keskmine 29 Sep 125
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 28 Sep 002/003 Hinnanguline Afr/Ap 29 Sep 004/004 Prognoositud Afr/Ap 30 Sep-02 Oct 018/035-018/025-007/008
VI. Geomagnetilised aktiivsuse tõenäosused 30 Sep kuni 02 Oct
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 35% | 35% | 10% |
| Väike torm | 25% | 30% | 05% |
| Suur-tõsine torm | 05% | 10% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 10% | 10% | 15% |
| Väike torm | 25% | 20% | 20% |
| Suur-tõsine torm | 60% | 70% | 20% |
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