Viewing archive of onsdag, 19 december 2001
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 2001 Dec 19 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 353 publicerat klockan 2200Z på 19 Dec 2001IA. Analys av solfläcksgrupper och solaktivitet från 18-2100Z till 19-2100Z Solar activity was moderate. Region 9739 (S14W82)
produced occasional C-class events and the single M-class flare of
the period, an M1/Sf at 19/1706Z. This region has been growing
steadily since appearing on the disk on 13 Dec and now exceeds 400
millionths of white light area as it rotates around the west limb.
Region 9733 (N13W75) continues to produce minor C-class events as
it approaches the west limb. Region 9742 (N12E27) maintains moderate
magnetic complexity and size, and produced a C4 flare at 19/0232Z).
New Regions 9746 (S18E08) and 9747 (N12E71) were numbered today.
IB. Prognos för solaktivitet
Solar activity is expected to be low
to moderate. Regions 9733 and 9739 have potential to produce an
M-class flare on the west limb. Region 9742 also has a slim chance
of producing an M-class flare.
IIA. Sammanfattning av geofysisk aktivitet 18-2100Z till 19-2100Z
The geomagnetic field was quiet to unsettled. The IMF Bz was mostly
southward this period creating prolonged disturbed periods.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to continue at quiet to unsettled levels. Unsettled
conditions are likely on days two and three as a southern coronal
hole moves into a geoeffectively favorable position.
III. Chans för solutbrott från 20 Dec till 22 Dec
| M-klass | 60% | 50% | 50% |
| X-klass | 10% | 05% | 05% |
| Proton | 10% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 19 Dec 208 Prognoserat 20 Dec-22 Dec 205/195/185 90 Day Mean 19 Dec 219
V. Geomagnetiskt A-index
Observerad Afr/Ap 18 Dec 007/008 Förväntat Afr/Ap 19 Dec 010/010 Prognoserat Afr/Ap 20 Dec-22 Dec 008/008-010/010-010/010
VI. Chanser för geomagnetisk aktivitet från 20 Dec till 22 Dec
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 25% | 25% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 30% | 30% |
| Små stormförhållanden | 05% | 10% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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