Viewing archive of Thursday, 20 January 2005
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.
:Product: 20050120SGAS.txt
:Issued: 2005 Jan 20 0250 UT
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.comJoint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 020 Issued at 0245Z on 20 Jan 2005 This report is compiled from data received at SWO on 19 JanA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0510 0526 0535 0720 N12W44 C7.2 Sf 3500 0658 0731 0755 0720 N19W47 M6.7 2n 5000 0803 0822 0840 0720 X1.3 II/IV 1019 1024 1029 0720 N18W47 M2.7 1n 1400 2900 1250 1251 1345 65 150 1532 1540 1548 0720 N13W50 M1.6 2f 2132 2132 2132 370 2151 2151 2151 100 2207 2207 2207 140 2210 2210 2212 170
B. Proton Events
The greater than 100 MeV proton event has ended:
start 17/1215 UTC, 28 pfu peak at 17/1700 UTC, and end 18/2205 UTC.
The greater than 10 MeV proton event remains in progress but is
decaying: start 16/0210 UTC and 5040 pfu peak at 17/1750 UTC. Proton
fluxes have decreased enough for the GOES electron sensors and ACE
SWEPAM instruments to again provide reliable data.
C. Geomagnetic Activity Summary
The geomagnetic disturbance
remained in progress at the unsettled to severe storm level.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 133 SSN 066 Afr/Ap 045/062 X-ray Background B6.8 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.1e+08 GT 10 MeV 8.2e+06 p/(cm2-ster-day) (GOES-11 satellite synchronous orbit W107 degrees) Daily Electron Fluence GT 2 MeV 4.40e+08 e/(cm2-ster-day) (GOES-12 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 5 6 5 6 5 5 3 3 Planetary 6 6 6 7 6 4 3 4
F. Comments
The Afr index reported in Part E is estimated from Boulder observations.
All times in UTC
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