Viewing archive of tisdag, 6 april 2010

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 2010 Apr 06 2201 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 096 publicerat klockan 2200Z på 06 Apr 2010

IA. Analys av solfläcksgrupper och solaktivitet från 05-2100Z till 06-2100Z

Solar activity was very low. Todays flare activity consisted of a single B1 X-ray event at 0402Z from Region 1060 (N26E32). In addition a small, possibly earthward directed CME was observed in the Stereo coronagraph images and was associated with disk activity in the SOHO EIT images beginning at about 0113Z, just north of Region 1061 (N14W24). Region 1061 appears to be growing slowly.
IB. Prognos för solaktivitet
Solar activity is expected to be very low, but there is a chance for an isolated C-class event from Region 1061.
IIA. Sammanfattning av geofysisk aktivitet 05-2100Z till 06-2100Z
The geomagnetic field was at active to minor storm levels for most of the day, with the exception of an interval of minor to major storm levels between 0000-0600Z. Solar wind observations from the ACE spacecraft showed a slow trend of increasingly negative Bz consistent with continued influence of yesterdays CME-driven activity. Peak negative Bz values reached -8 nT at about 1250Z. Solar wind velocity gradually decreased during the past 24 hours and was about 550 km/s at the end of the period. The greater than 2 MeV electron flux at geosynchronous orbit reached very high levels during the past 24 hours.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected to be active for the first day (07 April) due to a favorably positioned coronal hole. Activity levels are expected to be unsettled to active on the second day (08 April) due to persistence as well as possible effects from todays CME. Predominantly quiet levels are expected on the third day (09 April).
III. Chans för solutbrott från 07 Apr till 09 Apr
M-klass01%01%01%
X-klass01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observerad       06 Apr 078
  Prognoserat   07 Apr-09 Apr  082/085/085
  90 Day Mean        06 Apr 083
V. Geomagnetiskt A-index
  Observerad Afr/Ap 05 Apr  028/049
  Förväntat     Afr/Ap 06 Apr  025/030
  Prognoserat    Afr/Ap 07 Apr-09 Apr  015/020-012/015-005/007
VI. Chanser för geomagnetisk aktivitet från 07 Apr till 09 Apr
A. Medelhöga breddgrader
Aktivt40%20%05%
Små stormförhållanden20%10%01%
Svåra stormförhållanden05%01%01%
B. Höga breddgrader
Aktivt45%25%05%
Små stormförhållanden25%15%01%
Svåra stormförhållanden10%05%01%

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