Viewing archive of fredag, 15 april 2011
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 2011 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 2011IA. Analys av solfläcksgrupper och solaktivitet från 14-2100Z till 15-2100Z Solar activity increased to moderate levels. Region
1190 (N13W26) produced an M1/1F flare at 15/1712Z. Associated with
this event were discrete radio emissions ranging from 4995 MHz -
15400 MHz. Occasional C-class flares were also observed during the
period. Region 1190 and Region 1193 (N17E44) remain the most
significant regions. Both Regions 1190 and 1193 showed increases in
areal coverage. A filament was observed lifting at 14/2324Z on GOES
SXI. A CME was observed on SOHO/LASCO C2 imagery at 15/0036Z, with a
speed of approximately 390 km/s. STEREO imagery showed the CME is
expected to be geoeffective.
IB. Prognos för solaktivitet
Solar activity is expected to be at
low levels, with C-class flares expected for the next three days
(16-18 April). There is also a slight chance for M-class flares
during the period.
IIA. Sammanfattning av geofysisk aktivitet 14-2100Z till 15-2100Z
The geomagnetic field was at quiet levels. The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels during the
period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be predominantly quiet for the next three days (16-18
April).
III. Chans för solutbrott från 16 Apr till 18 Apr
| M-klass | 55% | 55% | 55% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observerad 15 Apr 129 Prognoserat 16 Apr-18 Apr 135/140/145 90 Day Mean 15 Apr 103
V. Geomagnetiskt A-index
Observerad Afr/Ap 14 Apr 003/007 Förväntat Afr/Ap 15 Apr 003/005 Prognoserat Afr/Ap 16 Apr-18 Apr 005/005-005/005-005/005
VI. Chanser för geomagnetisk aktivitet från 16 Apr till 18 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 05% | 05% | 05% |
| Små stormförhållanden | 01% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 10% | 10% |
| Små stormförhållanden | 01% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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