Viewing archive of lördag, 12 oktober 2002
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 2002 Oct 12 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 285 publicerat klockan 2200Z på 12 Oct 2002IA. Analys av solfläcksgrupper och solaktivitet från 11-2100Z till 12-2100Z Solar activity was low. The largest event of the
period was a C2.6 flare at 12/1922UTC, without a correlating optical
report. Region 149 (N16E34) increased somewhat in size today.
Region 139 (N08W59) remains the largest group on the visible disk,
retaining mixed polarities within its penumbral area, but appears
relatively stable and quiescent. Two new regions were numbered
today, Regions 157 (N17E49) and 158 (S08E80). The latter appears as
a large unipolar spot near the east limb, which may be the leader of
a larger group rotating onto the visible disk.
IB. Prognos för solaktivitet
Solar activity is expected to be
predominantly low, with a chance for isolated moderate activity.
Regions 149 and 139 are both potential sources for isolated moderate
flares during the period. Region 139 will rotate off the visible
disk by the end of the period.
IIA. Sammanfattning av geofysisk aktivitet 11-2100Z till 12-2100Z
The geomagnetic field was mainly quiet to unsettled, with one active
period observed during 12/0900-1200 UTC. Greater than 2 MeV
electron flux at geosynchronous orbit briefly reached high levels
and exceeded event threshold today.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be mainly quiet to unsettled for the next three days.
III. Chans för solutbrott från 13 Oct till 15 Oct
| M-klass | 30% | 30% | 25% |
| X-klass | 05% | 05% | 01% |
| Proton | 05% | 05% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 12 Oct 180 Prognoserat 13 Oct-15 Oct 185/180/175 90 Day Mean 12 Oct 182
V. Geomagnetiskt A-index
Observerad Afr/Ap 11 Oct 005/008 Förväntat Afr/Ap 12 Oct 008/008 Prognoserat Afr/Ap 13 Oct-15 Oct 007/008-007/008-007/008
VI. Chanser för geomagnetisk aktivitet från 13 Oct till 15 Oct
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 20% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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