Viewing archive of måndag, 21 mars 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 Mar 21 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 080 publicerat klockan 2200Z på 21 Mar 2005IA. Analys av solfläcksgrupper och solaktivitet från 20-2100Z till 21-2100Z Solar activity was at low levels today. Newly numbered
Region 745 (N12E54) produced the only C-class flare recorded this
period, a C2 event that occurred at 20/1547 UTC. This active region
currently appears to be a simply structured magnetic BXO beta group.
Region 743 (S08W84) appears to be in decay as the spot cluster
begins to exit the solar west limb. Region 744 (S12W13) underwent
growth in the sunspot area and appeared fairly quiescent throughout
the period.
IB. Prognos för solaktivitet
Solar activity is expected to be at
low levels.
IIA. Sammanfattning av geofysisk aktivitet 20-2100Z till 21-2100Z
The geomagnetic field was at quiet to active levels. A weak coronal
hole high speed stream appears to have passed the ACE spacecraft at
approximately 21/0800 UTC with maximum solar wind speeds reaching
650 km/s at approximately 20/0900 UTC. Following two hours of a
sustained southward Bz, a brief geoeffective period of active
conditions occurred between 20/1200 and 1500 UTC.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be at predominantly quiet to unsettled levels. A solar
sector boundary crossing is expected to produce isolated active
conditions on 22 March. Isolated active conditions should persist
through 23 and 24 March due to a coronal hole high speed stream.
III. Chans för solutbrott från 22 Mar till 24 Mar
| M-klass | 10% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 21 Mar 090 Prognoserat 22 Mar-24 Mar 085/080/080 90 Day Mean 21 Mar 098
V. Geomagnetiskt A-index
Observerad Afr/Ap 20 Mar 004/005 Förväntat Afr/Ap 21 Mar 006/012 Prognoserat Afr/Ap 22 Mar-24 Mar 006/012-008/012-010/012
VI. Chanser för geomagnetisk aktivitet från 22 Mar till 24 Mar
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 20% | 20% |
| Små stormförhållanden | 05% | 05% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 25% | 25% |
| Små stormförhållanden | 10% | 10% | 10% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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