Viewing archive of Friday, 30 April 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 Apr 30 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 120 Issued at 0245Z on 30 APR 1999 This report is compiled from data received at SWO on 29 APRA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1945 1954 2005 8524 N22W16 M1.1 1B 21
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD RANGED FROM
QUIET TO ACTIVE.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 122 SSN 098 AFR/AP 018/019 X-RAY BACKGROUND B3.7 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 2.5E+05 GT 10 MEV 1.6E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 6.40E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 3 3 2 3 4 4 3 4 PLANETARY 3 3 2 4 4 4 4 4
F. Comments
None
All times in UTC
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