Viewing archive of måndag, 25 april 2005
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 2005 Apr 25 2210 UTC# Prepared jointly by the U.S. Dept. of Commerce, NOAA, #Space Environment Center and the U.S. Air Force. #
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 115 publicerat klockan 2200Z på 25 Apr 2005IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z Solar activity continues at very low levels. New Region
756 (S06E68) is rotating into view on the southeast limb. Although
this region's close proximity to the limb is hindering the analysis,
it does appear to be a moderate size sunspot group, with initial
measurements of over 400 millionths in white light area. The CME
activity on 22 April may have been associated with this region;
however, activity in the past 48 hours was limited to occasional
B-class flares. No other activity of note occurred this period.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low to low. Region 756 has the potential to produce C-class flares.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
The geomagnetic field was quiet to unsettled with isolated active
periods at high latitudes. The weak high speed stream in progress
since 23 April is declining. Solar wind speed ended the period at
around 480 km/s.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet to unsettled.
III. Chans för solutbrott från 26 Apr till 28 Apr
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 25 Apr 086 Prognoserat 26 Apr-28 Apr 090/100/100 90 Day Mean 25 Apr 090
V. Geomagnetiskt A-index
Observerad Afr/Ap 24 Apr 005/010 Förväntat Afr/Ap 25 Apr 008/010 Prognoserat Afr/Ap 26 Apr-28 Apr 005/008-005/005-005/005
VI. Chanser för geomagnetisk aktivitet från 26 Apr till 28 Apr
| 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% |
All times in UTC
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