Viewing archive of Saturday, 9 May 1998
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 1998 May 09 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 129 Issued at 0245Z on 09 MAY 1998 This report is compiled from data received at SWO on 08 MAYA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0149 0204 0217 M3.1 2400 30 II 0553 0608 0626 M1.4 2900 430 II/IV 0625 0625 0626 350 0628 0628 0628 110 1154 1306 1334 8214 N25W51 C5.4 1N 170 1350 1415 1437 M1.8 1821 1821 1822 350 2028 2028 2028 180 2240 2241 2241 220 2315 2315 2316 100 2340 2344 2350 C3.2 290
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS MOSTLY
ACTIVE WITH QUIETER PERIODS OBSERVED LATE IN THE DAY.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 118 SSN 081 AFR/AP 024/020 X-RAY BACKGROUND B9.9 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 3.0E+06 GT 10 MEV 2.6E+04 P/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 2.50E+08 E/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) 3 HOUR K-INDICES: BOULDER 4 4 4 3 4 4 2 2 PLANETARY 4 4 4 4 4 4 3 3
F. Comments
THE ENERGETIC ELECTRON FLUENCE AT GEOSYNCHRONOUS ORBIT WAS MODERATE. SOHO EIT AND LASCO IMAGES INDICATED THAT TODAY'S M-CLASS X-RAY EVENTS ORIGINATED FROM BEHIND THE WEST LIMB NEAR THE LOCATION OF DEPARTED REGION 8210 (S15).
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