Viewing archive of Tuesday, 18 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 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 138 Issued at 0245Z on 18 MAY 1999 This report is compiled from data received at SWO on 17 MAYA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0404 0407 0410 C1.2 990 0449 0455 0500 M2.3 70 69 0951 0952 0953 200 14 1137 1137 1138 200 1227 1227 1229 120 1318 1319 1320 8541 C1.6 420 1451 1451 1452 160 1603 1605 1606 160 1649 1650 1650 740 1657 1657 1657 440 1829 1830 1832 100 2001 2016 2021 8541 N22W54 C1.6 SF 320 84 2126 2127 2127 120 2150 2202 2212 M1.0
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 145 SSN 148 AFR/AP 002/005 X-RAY BACKGROUND B7.7 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 1.1E+05 GT 10 MEV 1.4E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 3.70E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 0 0 0 2 1 1 2 1 PLANETARY 1 1 0 2 1 2 2 2
F. Comments
None.
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