Viewing archive of Tuesday, 31 August 1999

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 1999 Aug 31 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 243 Issued at 0245Z on 31 AUG 1999 This report is compiled from data received at SWO on 30 AUG
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
1103 1105 1105                       100
1723 1805 1821  8681        M3.8            58     II
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED WITH THE EXCEPTION OF THE 30/0800-1200Z INTERVAL. DURING THAT TIME ACTIVE TO MINOR STORM CONDITIONS WERE OBSERVED. THIS DISTURBANCE DOES NOT APPEAR TO BE RELATED TO THE IMPACT OF A CORONAL MASS EJECTION. RATHER, BZ TURNED SOUTHWARD PRIOR TO THAT TIME WHILE OTHER SOLAR WIND PARAMETERS REMAINED UNREMARKABLE. ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT REMAINED AT HIGH LEVELS.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 198  SSN 212  AFR/AP 016/020   X-RAY BACKGROUND C1.3
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 6.6E+05   GT 10 MEV 1.5E+04 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 8.20E+07 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 2 2 4 5 3 3 2 2 PLANETARY 2 2 5 5 3 3 3 3
F. Comments
  None


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