Viewing archive of Thursday, 10 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 10 0245 UTC
Prepared by the NOAA © SWPC and processed by

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 130 Issued at 0245Z on 10 May 2001 This report is compiled from data received at SWO on 09 May
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
B. Proton Events
The greater than 10 MeV proton event that began at 07/1915 UTC ended at 08/1935 UTC. The peak of the event was 30 pfu at 08/0755 UTC. The greater than 2 MeV electron fluxes attained high levels briefly during the past 24 hours.
C. Geomagnetic Activity Summary
The geomagnetic field ranged from unsettled to minor storm levels during the past 24 hours. Enhanced solar wind velocity, and periods of sustained southward solar wind magnetic field orientation led to an increase in geomagnetic activity. The plasma and field parameters appear to be consistent with the passage of an interplanetary transient. Minor storm periods were observed from 0000-0600 UTC, and active conditions dominated most of the remainder of the day.
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 129  SSN 098  Afr/Ap 019/032   X-ray Background B4.4
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 4.3e+06   GT 10 MeV 9.4e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 1.80e+07 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 5 5 4 3 4 3 3 4 Planetary 5 5 4 4 4 4 4 4
F. Comments

All times in UTC

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