Viewing archive of lördag, 9 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 09 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 099 publicerat klockan 2200Z på 09 Apr 2005IA. Analys av solfläcksgrupper och solaktivitet från 08-2100Z till 09-2100Z Solar activity was very low. Region 751 (S07W74)
produced several B-class flares during the period. This region has
grown in both sunspot count and white light area coverage and is now
a Dai beta spot group. The SOHO/LASCO imagery observed two CME's
today off the SW limb. The first was around 09/0826 UTC and the
second was at 09/1350 UTC. Both appear to be from a backside event.
No new regions were numbered today.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low to low.
IIA. Sammanfattning av geofysisk aktivitet 08-2100Z till 09-2100Z
The geomagnetic field has been quiet to unsettled. The greater than
2 MeV flux at geosynchronous orbit was at high levels today.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be predominately quiet to unsettled for 10-12 April.
Periods of active conditions are possible on 11-12 April due to a
recurrent coronal hole high speed stream.
III. Chans för solutbrott från 10 Apr till 12 Apr
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 09 Apr 088 Prognoserat 10 Apr-12 Apr 085/085/085 90 Day Mean 09 Apr 096
V. Geomagnetiskt A-index
Observerad Afr/Ap 08 Apr 002/004 Förväntat Afr/Ap 09 Apr 005/005 Prognoserat Afr/Ap 10 Apr-12 Apr 008/010-010/015-015/020
VI. Chanser för geomagnetisk aktivitet från 10 Apr till 12 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 20% | 25% |
| Små stormförhållanden | 05% | 10% | 10% |
| Svåra stormförhållanden | 01% | 01% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 25% | 35% |
| Små stormförhållanden | 10% | 15% | 20% |
| Svåra stormförhållanden | 01% | 05% | 05% |
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