Viewing archive of lördag, 19 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 19 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 078 publicerat klockan 2200Z på 19 Mar 2005IA. Analys av solfläcksgrupper och solaktivitet från 18-2100Z till 19-2100Z Solar activity was at low levels today. Region 743
(S08W57) produced two C-class flares during the period. The largest
was an impulsive C2/Sf flare that occurred at 19/0707 UTC. A Type
II radio sweep accompanied this flare and had an estimated shock
velocity of 413 km/s. SOHO/LASCO imagery did not depict any
significant CME activity near the time of the event. Region 743
continues to exhibit a beta-gamma magnetic structure. Region 742
(S06 L=160) rotated off the solar west limb today. No new regions
were numbered today
IB. Prognos för solaktivitet
Solar activity is expected to be at
very low to low levels.
IIA. Sammanfattning av geofysisk aktivitet 18-2100Z till 19-2100Z
The geomagnetic field ranged from quiet to minor storm levels. An
isolated period of minor storming occurred between 19/0000 and 0300
UTC. This was most likely due to a sustained southward Bz and a
slight increase in the solar wind speeds to approximately 460 km/s.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be at predominantly quiet to unsettled levels.
III. Chans för solutbrott från 20 Mar till 22 Mar
| M-klass | 10% | 10% | 10% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 19 Mar 093 Prognoserat 20 Mar-22 Mar 095/090/090 90 Day Mean 19 Mar 099
V. Geomagnetiskt A-index
Observerad Afr/Ap 18 Mar 006/009 Förväntat Afr/Ap 19 Mar 012/015 Prognoserat Afr/Ap 20 Mar-22 Mar 005/008-004/008-008/012
VI. Chanser för geomagnetisk aktivitet från 20 Mar till 22 Mar
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 20% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 25% |
| Små stormförhållanden | 05% | 05% | 10% |
| Svåra stormförhållanden | 01% | 01% | 05% |
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