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 UTC
Prepared 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 AUG
A. 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.


All times in UTC

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