Viewing archive of Thursday, 21 October 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 Oct 21 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 294 Issued at 0245Z on 21 OCT 1999 This report is compiled from data received at SWO on 20 OCTA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0553 0622 0643 8731 N10W48 M1.7 1F 44 II 1410 1410 1411 150
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 159 SSN 193 AFR/AP 006/004 X-RAY BACKGROUND B8.4 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 5.6E+05 GT 10 MEV 1.3E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 2.30E+08 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 0 2 1 1 2 2 1 1 PLANETARY 0 1 1 1 2 2 2 1
F. Comments
THE GREATER THAN 2 MEV ELECTRON FLUXES ATTAINED HIGH VALUES. THE 24 FLUENCE WAS MODERATE.
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