Viewing archive of Tuesday, 25 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 25 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 237 Issued at 0245Z on 25 AUG 1998 This report is compiled from data received at SWO on 24 AUGA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 2150 2212 2235 8307 X1.0 830 2100 II/IV
B. Proton Events
GREATER THAN 10 MEV AND GREATER THAN 100 MEV
PROTON EVENTS BEGAN TODAY IN CONJUNCTION WITH AN X1/3B FLARE AT
24/2212UT FROM REGION 8307 (N31E09). THE GT 100 MEV FLUX APPEARS TO
HAVE PEAKED AT 4 PFU 25/0115UT. THE GT 10 MEV FLUX HAS PASSED 60
PFU AND CONTINUES TO RISE.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET TO
UNSETTLED. SOME HIGH LATITUDE SITES EXPERIENCED BRIEF ACTIVE
PERIODS. ACTIVITY IS EXPECTED TO BE UNSETTLED TO MINOR STORM OVER
THE NEXT SEVERAL DAYS.
D. Stratwarm
None.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 121 SSN 099 AFR/AP 008/011 X-RAY BACKGROUND B4.1 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 5.7E+06 GT 10 MEV 1.5E+05 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 2.60E+07 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 2 2 3 2 2 2 2 2 PLANETARY 1 3 3 2 3 3 2 3
F. Comments
None
All times in UTC
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