Viewing archive of Tuesday, 8 May 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 May 08 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 128 Issued at 0245Z on 08 May 2001 This report is compiled from data received at SWO on 07 MayA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1629 1629 1629 120 1650 1650 1650 100
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field varied from
quiet to minor storm levels. A prolonged period of southward IMF,
from approximately 06/2200-07/0800 UTC, spawned active to minor
storm conditions at mid and high latitudes. Quiet to unsettled
conditions developed after 07/0900 UTC. A greater than 10 MeV
proton event began at 07/1915 UTC, in response to flares and CME
activity observed during 07/1000-1200 UTC. The event remains in
progress, with a maximum greater than 10 MeV flux observed thus far
of 27 pfu at 07/2315 UTC.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 138 SSN 103 Afr/Ap 011/017 X-ray Background B3.1 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.7e+06 GT 10 MeV 4.0e+05 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 5.30e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 5 4 2 3 3 2 1 Planetary 4 5 4 3 3 3 3 2
F. Comments
None
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