Viewing archive of Friday, 12 April 2013
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 2013 Apr 12 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 102 Issued at 0245Z on 12 Apr 2013 This report is compiled from data received at SWO on 11 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0320 0320 0320 120 0532 0607 0720 1718 N20W21 Sf 160 0655 0716 0729 1719 N09E12 M6.5 3b 2700 470 II/IV 1020 1843 IV 1222 1222 1222 540 2059 2059 2100 540 2111 2111 2111 130 2212 2212 2212 130 2220 2220 2220 160
B. Proton Events
The greater than 10 MeV proton flux at
geosynchronous orbit reached the 10 pfu event threshold at 11/1055Z,
and the 100 pfu event threshold at 11/1630Z, reaching a peak value
of 114 pfu at 11/1645Z. The greater than 10 MeV proton event is
still in progress. The greater than 100 MeV proton flux at
geosynchronous orbit reached the 1 pfu event threshold at 11/0940Z
with a peak value of 2 pfu at 11/1400Z, and ended at 11/1955Z.
C. Geomagnetic Activity Summary
The geomagnetic field was quiet.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 137 SSN 121 Afr/Ap 004/004 X-ray Background B6.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+07 GT 10 MeV 3.2e+06 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.60e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 0 1 1 2 2 3 1 2 Planetary 0 0 1 1 1 2 1 2
F. Comments
None.
All times in UTC
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