Viewing archive of Thursday, 6 May 1999

Geophysical report

Solar and Geophysical Activity Summary 1999 May 06 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 126 Issued at 0245Z on 06 MAY 1999 This report is compiled from data received at SWO on 05 MAY
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
2324 2325 2325                       120
B. Proton Events
A PROTON EVENT AT GREATER THAN 10 MEV WAS OBSERVED AT GEOSYNCHRONOUS ORBIT. THE EVENT CROSSED THE 10 PFU EVENT THRESHOLD AT 05/1820UT, REACHED A MAXIMUM OF 14 PFU AT 05/1955UT, AND CONTINUES IN PROGRESS. THIS PARTICLE EVENT FOLLOWED A SLOW INCREASE OF PARTICLE FLUXES THAT BEGAN AT ABOUT 0000UT ON MAY 4.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 141  SSN 145  AFR/AP 006/007   X-RAY BACKGROUND B6.3
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 1.1E+07   GT 10 MEV 3.4E+05 P/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 4.60E+08 E/(CM2-STER-DAY)
(GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES)
3 HOUR K-INDICES:
BOULDER 1 0 1 2 1 3 2 2 PLANETARY 1 0 1 2 2 3 3 3
F. Comments
  THE GREATER THAN 2 MEV ELECTRON FLUENCE WAS MODERATE.


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