Viewing archive of lördag, 8 september 2012
Solaktivitetsrapport
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.
Rapport för sol- och geofysisk aktivitet 2012 Sep 08 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 252 publicerat klockan 2200Z på 08 Sep 2012IA. Analys av solfläcksgrupper och solaktivitet från 07-2100Z till 08-2100Z Solar activity was moderate. A long duration M1 flare
was observed at 08/1759Z and appeared to involve an interaction
between Region 1564 (S13W39) and Region 1562 (S21W77). Region 1564
ended the period as the largest on the visible disk, an Eai type
group with beta-gamma magnetic characteristics. A coronal mass
ejection was observed off the west limb in SOHO/LASCO C2 imagery
beginning at 08/10Z. It appeared as a full halo in STEREO-A COR2
imagery. This CME is not expected to be geoeffective.
IB. Prognos för solaktivitet
Solar activity is expected to remain
low with a chance for an M-flare on days one and two (09-10
September), decreasing to a slight chance on day three (11
September).
IIA. Sammanfattning av geofysisk aktivitet 07-2100Z till 08-2100Z
The geomagnetic field ranged from quiet to unsettled levels, with one
period of active conditions observed at high latitudes. The solar
wind speed at the ACE spacecraft remained near 400 km/s throughout
the period. The Bz component of the interplanetary magnetic field
ranged from about +/- 5nT and earth remained in the positive sector.
A slow rise in high energy particles at ACE was observed beginning
around 09/11Z. This rise is believed to be associated with the CME
observed around 09/10Z in coronagraph imagery.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be mostly quiet for the next three days (09-11
September).
III. Chans för solutbrott från 09 Sep till 11 Sep
| M-klass | 20% | 20% | 15% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 08 Sep 129 Prognoserat 09 Sep-11 Sep 125/115/110 90 Day Mean 08 Sep 124
V. Geomagnetiskt A-index
Observerad Afr/Ap 07 Sep 008/009 Förväntat Afr/Ap 08 Sep 007/008 Prognoserat Afr/Ap 09 Sep-11 Sep 007/007-007/007-006/005
VI. Chanser för geomagnetisk aktivitet från 09 Sep till 11 Sep
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 10% | 10% |
| Små stormförhållanden | 01% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 20% | 20% | 20% |
| Svåra stormförhållanden | 10% | 10% | 10% |
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