Viewing archive of Saturday, 21 July 2012
Geophysical report
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.
Solar and Geophysical Activity Summary 2012 Jul 21 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 203 Issued at 0245Z on 21 Jul 2012 This report is compiled from data received at SWO on 20 JulA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0251 0251 0251 110 0332 0332 0332 440
B. Proton Events
The greater than 10 MeV proton flux at
geosynchronous orbit exceeded the 10 pfu threshold at 17/1715Z,
reached a maximum of 136 pfu at 18/0600Z, and is still ongoing at
the time of this report.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
to unsettled levels. Two active periods were observed at the
Boulder magnetometer, and isolated active and minor storm periods
were observed at high latitudes.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 092 SSN 055 Afr/Ap 010/011 X-ray Background B3.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.2e+07 GT 10 MeV 3.5e+06 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.90e+08 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 4 2 4 2 3 2 2 Planetary 1 3 2 3 2 3 2 2
F. Comments
None
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