Viewing archive of söndag, 13 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 13 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 286 publicerat klockan 2200Z på 13 Oct 2002IA. Analys av solfläcksgrupper och solaktivitet från 12-2100Z till 13-2100Z Solar activity was low. The largest event of the
period was an unusual flare from the spotless plage of Region 150
(S09W48): a C4/1F event, with associated Type II/IV radio sweeps,
at 13/1757 UTC. Estimated Type-II sweep velocity was 448 km/s.
SOHO/LASCO imagery was not available for further analysis of any
associated CME activity. Region 149 (N16E20) produced a weak
C-flare earlier in the period. New Region 159 (S12E73) was numbered
today, appearing as a negative-polarity single spot some distance
behind the similarly configured Region 158 (S09E62), which rotated
into view yesterday. Limb proximity prevents further analysis.
IB. Prognos för solaktivitet
Solar activity is expected to be
predominantly low. A chance for isolated M-class activity still
exists for Region 149 and Region 139 (N08W72).
IIA. Sammanfattning av geofysisk aktivitet 12-2100Z till 13-2100Z
The geomagnetic field was quiet to unsettled. The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels again
today and briefly exceeded event threshold.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet to unsettled. A slight chance for elevated
activity exists for day three, in association with the possible CME
activity discussed in section 1A above.
III. Chans för solutbrott från 14 Oct till 16 Oct
| M-klass | 25% | 25% | 20% |
| X-klass | 05% | 01% | 01% |
| Proton | 05% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 13 Oct 179 Prognoserat 14 Oct-16 Oct 180/175/175 90 Day Mean 13 Oct 182
V. Geomagnetiskt A-index
Observerad Afr/Ap 12 Oct 006/011 Förväntat Afr/Ap 13 Oct 006/009 Prognoserat Afr/Ap 14 Oct-16 Oct 007/008-007/008-010/010
VI. Chanser för geomagnetisk aktivitet från 14 Oct till 16 Oct
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 20% |
| Små stormförhållanden | 05% | 05% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 25% |
| Små stormförhållanden | 05% | 05% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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