Vaata pühapäev, 1 aprill 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 Apr 01 2200 UTCValminud NOAA © SWPC ja töödeldud SpaceWeatherLive.com-iga
Ühine USAF / NOAA päikese- ja geofüüsikaalase aktiivsuse aruanne
SDF number 092 Välja antud 2200Z kuni 01 Apr 2012IA. Päikese aktiivsete piirkondade ja päikeseaktiivsuse analüüs alates 31-2100Z kuni 01-2100Z Solar activity was very low. Only minor B-class/Sf
flares were observed, one from Region 1444 (N21W86) at 31/2107 and
from 1450 (N17E22) at 01/1454Z. The event from Region 1444 was
associated with a narrow eruption visible in SDO/AIA 304 imagery.
The ejecta is not expected to be geoeffective. The remaining
regions were quiet and magnetically simple.
IB. Päikese aktiivsuse ennustus
Solar activity is expected to be very
low to low with a slight chance for a C-class flare for the first
two days of the period (02-03 April). The probability of a C class
event increases on Day 3 (04 April) with the anticipated return of
Old Region 1434 (S22 L=207).
IIA. Summaarne geofüüsikaline aktiivsus 31-2100Z kuni 01-2100Z
The geomagneic field was quiet. Solar wind speed measured at the ACE
spacecraft gradually declined from around 380 km/s at the beginning
of the period to about 320 km/s by the end. At approximately
01/0800Z, ACE indicated a solar sector boundary crossing to a
negative orientation accompanied by increased density and slight (-5
nT) southward Bz.
IIB. Geofüüsikalise aktiivsuse ennustus
The geomagnetic field is
expected to begin the period at quiet levels. On Day 3 (04 April),
it will become unsettled with the possiblity of an isolated active
period as a coronal hole high speed stream becomes geoeffective.
III. Sündmuste tõenäosus 02 Aprkuni 04 Apr
| Klass M | 05% | 05% | 10% |
| Klass X | 01% | 01% | 01% |
| Prooton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Pikklaine 10.7 cm kiirgus
Vaadeldud 01 Apr 107 Prognoositud 02 Apr-04 Apr 110/115/125 90 päeva keskmine 01 Apr 118
V. Geomagneetiline A-indeks
Vaadeldud Afr/Ap 31 Mar 004/004 Hinnanguline Afr/Ap 01 Apr 006/006 Prognoositud Afr/Ap 02 Apr-04 Apr 006/005-006/005-007/008
VI. Geomagnetilised aktiivsuse tõenäosused 02 Apr kuni 04 Apr
| A. Keskmistel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 05% | 05% | 10% |
| Väike torm | 01% | 01% | 01% |
| Suur-tõsine torm | 01% | 01% | 01% |
| B. Kõrgetel laiuskraadidel | |||
|---|---|---|---|
| Aktiivne | 15% | 15% | 20% |
| Väike torm | 15% | 15% | 25% |
| Suur-tõsine torm | 05% | 05% | 15% |
Kõik ajad UTC-s
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