Viewing archive of Thursday, 20 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 20 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 140 Issued at 0245Z on 20 MAY 1999 This report is compiled from data received at SWO on 19 MAYA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0258 0259 0259 170 1024 1025 1026 310 1049 1049 1050 450 1059 1100 1101 400 1102 1102 1102 580 1103 1103 1104 1000 1108 1108 1109 840 1131 1132 1133 820 1142 1150 1154 2000 1217 1221 1223 1800
B. Proton Events
None.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET TO
UNSETTLED.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 142 SSN 120 AFR/AP 010/010 X-RAY BACKGROUND B6.8 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 1.4E+05 GT 10 MEV 1.5E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 4.10E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 3 3 2 2 2 2 3 3 PLANETARY 3 3 2 1 2 2 3 3
F. Comments
DUE TO COMMUNICATION PROBLEMS, SOME RADIO BURSTS MAY BE MISSING FROM THIS PRODUCT. A STRONG 245 MHZ NOISE STORM WAS IN PROGRESS FOR THE MAJORITY OF THE PERIOD.
All times in UTC
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