Viewing archive of Tuesday, 18 March 2003
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 2003 Mar 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 077 Issued at 0245Z on 18 Mar 2003 This report is compiled from data received at SWO on 17 MarA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1850 1905 1916 0314 S14W39 X1.5 1b 500 520 2014 2021 2028 C6.9 150 25 2020 2021 2021 170 2023 2023 2025 240 2133 2133 2133 120
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field ranged from
unsettled to major storm levels under the influence of a coronal
hole high-speed stream. Solar wind speeds remained above 600 km/s
and Bz fluctuated between +/- 10 nT.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 125 SSN 080 Afr/Ap 025/039 X-ray Background B3.0 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.3e+06 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 8.40e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 4 5 4 5 4 3 5 Planetary 3 4 6 4 6 4 4 5
F. Comments
The Afr index reported in Part E is estimated from Boulder observations.
All times in UTC
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