Viewing archive of Saturday, 5 April 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 Apr 05 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 095 Issued at 0245Z on 05 Apr 2003 This report is compiled from data received at SWO on 04 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1905 2019 2040 0324 M1.9 1905 2019 2038 0324 M2.1 59 65
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field has been at
low to active levels with periods of minor storming due to the
continued influence of a high-speed solar wind stream. The greater
than 2 MeV electrons at geosynchronous orbit reached high levels.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 153 SSN 148 Afr/Ap 024/026 X-ray Background B8.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.7e+06 GT 10 MeV 1.2e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 6.10e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 3 5 5 4 3 3 3 Planetary 4 3 5 5 5 3 4 4
F. Comments
Beginning 1500 UTC April 8, SEC will begin using data from the GOES 12 satellite, and stop receiving GOES 8 data. GOES 12 has the new Solar X-Ray Imager (SXI), which will acquire real-time, operational images of the solar x-ray flux. With the switch from GOES 8 to GOES 12, the primary/secondary designations will change. GOES 12 will be the primary satellite for the SXI. All other data, including magnetometer, XRS x-ray measurements, and energetic particles, will have GOES 10 as their primary source, with GOES 12 as the secondary source where available. Please see http://www.sec.noaa.gov/GOES.html for important information on this changeover.
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