Viewing archive of Thursday, 6 May 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 May 06 0245 UTCPrepared 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 MAYA. 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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