Viewing archive of onsdag, 23 maj 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 May 23 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 143 publicerat klockan 2200Z på 23 May 2001IA. Analys av solfläcksgrupper och solaktivitet från 22-2100Z till 23-2100Z Solar activity was low. Isolated low C-class flares
were observed. Region 9463 (N07E04) has doubled in size since
yesterday exceeding 750 millionths of white light areal coverage by
end of period. Despite its size, this region exhibits a fairly
simple beta configuration with no obvious complexity. Region 9468
(N05E39) also doubled in size exceeding 200 millionths with moderate
complexity. Two new regions were numbered today - 9471 (S13W02), and
9472 (N12E61).
IB. Prognos för solaktivitet
Solar activity is expected to be low.
A very isolated chance exists for an M-class flare from Regions 9463
or 9468.
IIA. Sammanfattning av geofysisk aktivitet 22-2100Z till 23-2100Z
The geomagnetic field was quiet to active. The onset of a high speed
coronal hole stream occurred at approximately 23/0200Z. Solar wind
speed has gradually increased from 300 km/s to 450 km/s;
consequently, unsettled to active conditions were predominant during
the latter half of the period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be unsettled to active through day one due to high speed
coronal hole flow. Quiet to unsettled conditions should return on
days two and three.
III. Chans för solutbrott från 24 May till 26 May
| M-klass | 40% | 40% | 40% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 23 May 159 Prognoserat 24 May-26 May 165/170/170 90 Day Mean 23 May 168
V. Geomagnetiskt A-index
Observerad Afr/Ap 22 May 008/009 Förväntat Afr/Ap 23 May 015/012 Prognoserat Afr/Ap 24 May-26 May 015/018-010/012-008/010
VI. Chanser för geomagnetisk aktivitet från 24 May till 26 May
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 25% | 20% |
| Små stormförhållanden | 15% | 10% | 05% |
| Svåra stormförhållanden | 05% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 50% | 40% | 30% |
| Små stormförhållanden | 25% | 15% | 10% |
| Svåra stormförhållanden | 05% | 05% | 01% |
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