Viewing archive of onsdag, 25 maj 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 May 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 145 publicerat klockan 2200Z på 25 May 2005IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z Solar activity continues at very low levels. Occasional
B-class flares were observed in Regions 766 (N14E23) and 767
(S07E26). These two active regions are the only sunspot groups on
the visible disk, and exhibited little change this period. A large
CME off the east limb was observed on LASCO imagery during the
latter half of 24 May. The likely source of this CME was backsided.
IB. Prognos för solaktivitet
Solar activity is expected to continue
at very low levels. There is a slight chance for a C-class flare
from Region 767.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
The geomagnetic field was quiet. Solar wind speed declined to near
360 km/s. The greater than 2 MeV electron flux at geosynchronous
orbit was at high levels.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be quiet, with isolated unsettled periods on 26 May.
Occasional active periods are expected on 27 and 28 May as a coronal
hole high speed stream rotates into a geoeffective position.
III. Chans för solutbrott från 26 May till 28 May
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 25 May 084 Prognoserat 26 May-28 May 085/085/095 90 Day Mean 25 May 090
V. Geomagnetiskt A-index
Observerad Afr/Ap 24 May 002/005 Förväntat Afr/Ap 25 May 005/005 Prognoserat Afr/Ap 26 May-28 May 005/010-010/015-015/020
VI. Chanser för geomagnetisk aktivitet från 26 May till 28 May
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 20% | 30% |
| Små stormförhållanden | 05% | 10% | 15% |
| Svåra stormförhållanden | 01% | 01% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 40% | 50% |
| Små stormförhållanden | 10% | 20% | 25% |
| Svåra stormförhållanden | 01% | 05% | 10% |
Senaste nytt
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