Viewing archive of måndag, 25 december 2000

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 2000 Dec 25 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 360 publicerat klockan 2200Z på 25 Dec 2000

IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z

Solar activity has been low. Region 9283 (S12E39) produced two events of equal magnitude, C5/Sf, representing the greatest activity for the period. The first was in progress at the beginning of the period, peaking at 24/2101 UTC, and the second occurred at 25/1600 UTC. Other activity included several lesser C-class flares from Region 9283, and a C2/Sf from Region 9280 (N09W04). Optical reports of filament disruptions near S36W45 and N30W60 were received (at 25/0432 and 25/1213 UTC, respectively), and while no correlated SOHO/LASCO observations are available at present, a lack of corresponding radio activity suggests no significant associated CMEs. New Region 9287 (S16E60) was numbered today. Also of note - a partial solar eclipse occurred over most of North America today, from 25/1615 to 1815 UTC, with only minor impacts on solar optical and radio observation sites.
IB. Prognos för solaktivitet
Solar activity is expected to be low to moderate. Regions 9280 and 9283 are the most likely sources for isolated M-class activity.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
The geomagnetic field was at quiet to unsettled levels.
IIB. Prognos för geofysisk aktivitet
Geomagnetic field activity is expected to persist at quiet to unsettled levels for the next three days.
III. Chans för solutbrott från 26 Dec till 28 Dec
M-klass35%35%35%
X-klass05%05%05%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observerad       25 Dec 187
  Prognoserat   26 Dec-28 Dec  190/190/185
  90 Day Mean        25 Dec 174
V. Geomagnetiskt A-index
  Observerad Afr/Ap 24 Dec  004/005
  Förväntat     Afr/Ap 25 Dec  007/007
  Prognoserat    Afr/Ap 26 Dec-28 Dec  010/010-007/010-007/010
VI. Chanser för geomagnetisk aktivitet från 26 Dec till 28 Dec
A. Medelhöga breddgrader
Aktivt20%15%15%
Små stormförhållanden10%05%05%
Svåra stormförhållanden01%01%01%
B. Höga breddgrader
Aktivt25%20%20%
Små stormförhållanden10%05%05%
Svåra stormförhållanden01%01%01%

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