Viewing archive of Monday, 31 August 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 Aug 31 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 243 Issued at 0245Z on 31 AUG 1998 This report is compiled from data received at SWO on 30 AUGA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0031 0032 0032 130 0050 0051 0051 720 0257 0258 0258 140 0324 0324 0324 120 0512 0541 0551 8319 N21W33 M1.0 1N 0638 0640 0656 8322 N20W17 SF 1200 0645 0645 0646 660 0649 0649 0650 220 0705 0713 0718 8307 560 0929 0937 0943 8319 N21W35 M1.0 1N 1637 1637 1638 210 1800 1805 1809 8307 N29W60 M1.3 SN 1700 77 II 1927 1927 1928 1900
B. Proton Events
THE GREATER THAN 10 MEV PROTON FLUX REMAINED
BELOW EVENT THRESHOLD. FLUXES AT THE BEGINNING OF THE PERIOD WERE
NEAR 5 PFU AND DECLINED SLOWLY TO NEAR 1 PFU AT THE END OF THE DAY.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS
PREDOMINANTLY QUIET TO UNSETTLED. BRIEF ACTIVE CONDITIONS WERE
OBSERVED BETWEEN 30/0300-0600Z.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 163 SSN 136 AFR/AP 014/015 X-RAY BACKGROUND B7.3 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 2.9E+06 GT 10 MEV 2.6E+05 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 4.90E+08 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 3 4 3 3 3 3 2 2 PLANETARY 3 4 3 3 3 3 3 3
F. Comments
ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT REACHED HIGH LEVELS DURING THE PERIOD.
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