Vaata teisipäev, 9 august 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 Aug 09 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 221 Välja antud 2200Z kuni 09 Aug 2011IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 08-2100Z kuni 09-2100Z Solar activity was high. Region 1263 (N17W83) produced
an X6/2b flare at 09/0805Z, the largest x-ray event so far in Cycle
24. This flare was accompanied by multi-frequency radio emissions,
including a Tenflare (710sfu), and Type II (1551 km/s) and IV
signatures. A full halo CME was subsequently observed in LASCO C3
imagery at 09/0906Z. Initial plane-of-sky speed was estimated to be
about 1000 km/s. Earlier in the period, a CME was observed in LASCO
C3 imagery at 0406Z. This event was attributed to an M2/1b flare
from Region 1263 at 09/03435Z. While the area of Region 1263
diminished over the last 24 hours, the longitudinal extent expanded,
and the region ended the period as an Ehc type spot group with a
beta-gamma-delta magnetic configuration.
IB. Päikese aktiivsuse ennustus
Solar activity is likely to be low to
moderate. A slight chance for an isolated X-class flare, and/or
proton event, remains for Day 1 (10 August). Event probabilities are
expected to gradually decrease as Region 1263 rotates around the
west limb.
IIA. Summaarne geofüüsikaline aktiivsus 08-2100Z kuni 09-2100Z
The geomagnetic field was quiet to unsettled through the period under
the continued influence of a coronal hole high speed stream. Solar
wind speed at the ACE spacecraft was approximately 600 km/s for most
of the period. The Bz component of the interplanetary magnetic
field was predominantly near zero. The greater than 100 MeV protons
crossed the 1 pfu event threshold at 09/0825Z, reached a maximum of
2 pfu at 09/0855Z, and ended at 09/1045Z. The greater than 10 MeV
protons crossed the 10 pfu event threshold at 09/0845Z, reached a
maximum of 26 pfu at 09/1210Z, and ended at 09/1715Z. The greater
than 2 MeV electron flux at geosynchronous orbit reached high levels
during the period.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to be predominantly quiet to unsettled for the next three
days (10-12 August). Unsettled conditions are expected on Day 1 (10
August) as a weak remnant of the 08 August CME arrives. Currently,
a return to mostly quiet conditions is expected on Days 2 and 3
(11-12 August). Analysis of the 09/0906Z CME is presently underway
to determine its potential geoeffectiveness.
III. Sündmuste tõenäosus 10 Augkuni 12 Aug
| Klass M | 60% | 40% | 20% |
| Klass X | 10% | 10% | 05% |
| Prooton | 99% | 60% | 10% |
| PCAF | Yellow | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 09 Aug 098 Prognoositud 10 Aug-12 Aug 095/085/085 90 päeva keskmine 09 Aug 096
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 08 Aug 008/010 Hinnanguline Afr/Ap 09 Aug 008/008 Prognoositud Afr/Ap 10 Aug-12 Aug 010/010-007/007-005/005
VI. Geomagnetilised aktiivsuse tõenäosused 10 Aug kuni 12 Aug
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 20% | 15% | 05% |
| Väike torm | 05% | 05% | 05% |
| Suur-tõsine torm | 01% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 15% | 20% | 10% |
| Väike torm | 10% | 05% | 05% |
| Suur-tõsine torm | 05% | 05% | 01% |
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