Viewing archive of Thursday, 19 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 19 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 231 Issued at 0245Z on 19 AUG 1999 This report is compiled from data received at SWO on 18 AUGA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0206 0206 0206 140 2001 2001 2001 170
B. Proton Events
None
C. Geomagnetic Activity Summary
HE GEOMAGNETIC FIELD REMAINED AT
ACTIVE TO MINOR STORM LEVELS. THIS DISTURBANCE, RELATED TO A HIGH
SPEED SOLAR WIND STREAM, BEGAN IN THE EARLY PART OF 16 AUGUST.
SPEEDS CONTINUED IN THE 600-700 KM/S RANGE MOST OF TODAY. THE
GREATER THAN 2 MEV GEOSYNCHRONOUS ELECTRON FLUX ATTAINED HIGH LEVELS
AROUND 1200Z.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 131 SSN 047 AFR/AP 025/026 X-RAY BACKGROUND B9.1 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 6.6E+05 GT 10 MEV 1.3E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.30E+08 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 4 5 4 3 4 4 3 3 PLANETARY 4 5 5 4 4 4 3 3
F. Comments
None
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