Viewing archive of Saturday, 6 March 1999
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 1999 Mar 06 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 065 Issued at 0245Z on 06 MAR 1999 This report is compiled from data received at SWO on 05 MARA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1200 1203 1208 170 1834 1837 1844 8478 S15W66 SF 110 1912 1913 1913 100
B. Proton Events
None.
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD RANGED FROM
QUIET TO MINOR STORM LEVELS. THIS ACTIVITY WAS BASED ON THE
CONTINUED AFFECTS OF AN ELONGATED CORONAL HOLE STREAM IMPACTING THE
EARTH. THE GREATER THAN 2 MEV ELECTRONS AT GEOSYNCHRONOUS ORBIT
REACHED HIGH LEVELS AT APPROXIMATELY 05/0900Z.
D. Stratwarm
STRATWARM ALERT/FRIDAY/STRATWARM EXISTS.
FINAL WARMING CONTINUES.
TEMPERATURE GRADIENT REVERSED BETWEEN 60N AND
THE POLE IN THE LOWER AND MIDDLE STRATOSPHERE,
AND MEAN ZONAL WIND AT 60N FROM THE EAST AT 30
AND 10 HPA. TRANSMISSION TO SUMMER CONDITIONS
WILL PROCEED WITHIN THE NEXT WEEKS.
END OF GEOALERT MESSAGES OF THIS WINTER SEASON.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 128 SSN 135 AFR/AP 020/018 X-RAY BACKGROUND B4.6 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 6.6E+05 GT 10 MEV 1.5E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.10E+08 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 5 3 4 3 3 3 2 1 PLANETARY 4 3 5 3 3 4 2 2
F. Comments
None.
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