Viewing archive of Saturday, 8 February 1997
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 1997 Feb 08 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 039 Issued at 0245Z on 08 FEB 1997 This report is compiled from data received at SWO on 07 FEBA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD WAS QUIET.
D. Stratwarm
STRATWARM ALERT/FRIDAY/STRATWARM EXISTS.
ONE LARGE WARMING OVER SOUTHWESTERN EUROPE AND THE OTHER
LARGE WARM REGION FURTHER OVER EASTERN EUROPE ACROSS
CENTRAL SIBERIA TO EASTERN SIBERIA. DISTURBED CONDITIONS IN THE
UPPER STRATOSPHERE RESULTING IN A REVERSED RADIANCE
GRADIENT BETWEEN 60N AND THE POLE AT 1, 4 HPA.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 076 SSN 038 AFR/AP 004/003 X-RAY BACKGROUND A3.5 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 6.2E+05 GT 10 MEV 1.8E+04 P/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.90E+07 E/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) 3 HOUR K-INDICES: BOULDER 1 1 1 1 1 1 0 1 PLANETARY 0 0 0 0 1 0 1 2
F. Comments
H-ALPHA, YOHKOH, AND SPACE-BASED CORONAGRAPH DATA INDICATE A LARGE CME OCCURRED TODAY AT APPROXIMATELY 07/0230Z. THE CME SPANNED THE SOLAR DISK FROM THE WEST LIMB NEAR N00W90, SOUTHEASTWARD ALONG THE SOUTHERN POLAR CROWN FILAMENT CHANNEL, TO THE EAST LIMB NEAR S40E90. THIS SUGGESTS A SPAN OF SOME 200 DEGREES.
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