Vaata laupäev, 17 märts 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 Mar 17 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 077 Välja antud 2200Z kuni 17 Mar 2012IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 16-2100Z kuni 17-2100Z Solar activity was moderate. Region 1435 (S26W37)
grew rapidly overnight ending the period as a Dro type group with
beta magnetic characteristics. Nearby Region 1434 (S22W27) produced
an impulsive M1/Sf flare at 17/2039Z. This flare was accompanied
by a Type II radio sweep (1140 km/s). A northward directed wave was
visible in SDO/AIA 193 imagery. Region 1432 (N14W39), currently a
Cro type group with beta magnetic characteristics, produced a C1
flare at 17/0312, but was generally quiet overnight. New Region
1437 (S34E15) was numbered today. It and the remaining regions were
small, magnetically simple, and stable.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be low
with a chance for an isolated M-class flare all three days (18-20
March), particularly from the vicinity of Regions 1434 and 1435.
IIA. Summaarne geofüüsikaline aktiivsus 16-2100Z kuni 17-2100Z
Geomagnetic field activity ranged from quiet to active levels with
isolated minor to major storm levels observed at high latitudes.
This activity was in response to the continued presence of a high
speed solar wind stream. Solar wind speed, measured at the ACE
spacecraft, remained around 650 km/s while Bz ranged between +5 and
-5 nT. The greater than 2 MeV electron flux at geosynchronous orbit
reached high levels during the period.
IIB. Geofüüsikalise aktiivsuse ennustus
Geomagnetic field activity is
expected to begin at unsettled levels and increase to active to
isolated minor storm levels on Day 1 (18 March) as a CME from 15
March arrives. Activity levels are expected to be predominantly
active on Day 2 (19 March), declining to unsettled levels on Day 3
(20 March) as effects from the CME subside. Analysis of the M1/Sf
flare is ongoing to determine if it was associated with an
Earth-directed CME.
III. Sündmuste tõenäosus 18 Markuni 20 Mar
| Klass M | 30% | 30% | 30% |
| Klass X | 05% | 05% | 05% |
| Prooton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 17 Mar 102 Prognoositud 18 Mar-20 Mar 100/100/105 90 päeva keskmine 17 Mar 124
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 16 Mar 017/021 Hinnanguline Afr/Ap 17 Mar 013/016 Prognoositud Afr/Ap 18 Mar-20 Mar 018/025-015/020-008/010
VI. Geomagnetilised aktiivsuse tõenäosused 18 Mar kuni 20 Mar
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 40% | 30% | 05% |
| Väike torm | 20% | 15% | 01% |
| Suur-tõsine torm | 05% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 15% | 15% | 15% |
| Väike torm | 25% | 20% | 10% |
| Suur-tõsine torm | 35% | 25% | 05% |
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