Viewing archive of Wednesday, 28 March 2001
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 2001 Mar 28 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 087 Issued at 0245Z on 28 Mar 2001 This report is compiled from data received at SWO on 27 MarA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0222 0247 0341 9393 N14E17 C7.3 Sf 1700 99 0548 0548 0549 750 0925 0927 0945 9389 S11W11 Sf 890 1507 1509 1516 9401 N20E32 Sf II 1625 1630 1632 9401 N21E33 M2.2 1n 400 230 II 1633 0000 1639 II 1910 1918 1930 9390 N16W18 C5.6 Sf II 2110 2113 2115 C5.3 490 2301 2301 2302 4000
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
minor storm conditions. Two different shocks were observed on the
ACE spacecraft. The first occurred at 27/0108 UTC with an
associated sudden impulse of 27 nT on the Boulder magnetometer at
27/0145 UTC. The second shock occurred at 27/1718 UTC with an
associated sudden impulse of 10 nT observed on the Boulder
magnetometer at 27/1745 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 273 SSN 291 Afr/Ap 015/018 X-ray Background C2.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 4.6e+07 GT 10 MeV 1.5e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 7.60e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 2 3 2 3 4 5 Planetary 4 2 2 3 2 3 4 5
F. Comments
The greater than 10 MeV proton flux at geosynchronous orbit was enhanced during the period, but stayed below event threshold with an observed maximum of approximately 6 pfu.
All times in UTC
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