Viewing archive of måndag, 15 april 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 Apr 15 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 105 publicerat klockan 2200Z på 15 Apr 2002IA. Analys av solfläcksgrupper och solaktivitet från 14-2100Z till 15-2100Z Solar activity was moderate. The Region complex
9893/9901 (N20W75) continues to flare as it approaches the west
limb. The largest was an M3/Sf at 15/0014 UTC. This region appears
to retain its mixed polarities and sunspot delta configuration.
Region 9906 (S15W14) also produced M-class activity, a long-duration
M1/Sf at 15/0355 UTC. An apparent Earth-directed CME is visible in
LASCO coronagraph images following this flare. Decay in Region 9906
since yesterday is most notable as fragmentation in the trailer
sunspot complex. Region 9907 (S04E21) continues to develop but has
not yet produced significant activity.
IB. Prognos för solaktivitet
Solar activity is expected to be
moderate. Additional M-class flares are possible in Regions 9906 and
the 9893/9901 complex, as is an isolated major flare.
IIA. Sammanfattning av geofysisk aktivitet 14-2100Z till 15-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet unsettled for the first day of the forecast
period. Unsettled to active conditions are expected on days two and
three in response to the CME mentioned in Part IA.
III. Chans för solutbrott från 16 Apr till 18 Apr
| M-klass | 75% | 50% | 50% |
| X-klass | 10% | 05% | 01% |
| Proton | 10% | 05% | 01% |
| PCAF | yellow | ||
IV. Penticton 10.7 cm Flux
Observerad 15 Apr 203 Prognoserat 16 Apr-18 Apr 200/190/185 90 Day Mean 15 Apr 202
V. Geomagnetiskt A-index
Observerad Afr/Ap 14 Apr 008/013 Förväntat Afr/Ap 15 Apr 005/006 Prognoserat Afr/Ap 16 Apr-18 Apr 008/008-018/015-018/015
VI. Chanser för geomagnetisk aktivitet från 16 Apr till 18 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 30% | 30% |
| Små stormförhållanden | 05% | 10% | 10% |
| Svåra stormförhållanden | 01% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 40% | 40% |
| Små stormförhållanden | 05% | 15% | 15% |
| Svåra stormförhållanden | 01% | 05% | 05% |
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