Viewing archive of Tuesday, 2 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 02 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 061 Issued at 0245Z on 02 MAR 1999 This report is compiled from data received at SWO on 01 MARA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
THE GEOMAGNETIC FIELD RANGED FROM
UNSETTLED TO MINOR STORM LEVELS. THE MOST DISTURBED PERIODS WERE
01/0000-0600Z AND 01/1200-1800Z. SOLAR WIND DATA SHOWED A LOW SPEED,
HIGH DENSITY FLOW WITH NORTHWARD BZ DURING THE DISTURBANCE. IT IS
POSSIBLE THIS DISTURBANCE WAS RELATED TO A FILAMENT DISRUPTION IN
THE SOUTHEAST QUADRANT ON 24-25 FEB. AT THE END OF THE PERIOD, SOLAR
WIND VELOCITY WAS INCREASING AND DENSITY WAS DECREASING.
D. Stratwarm
STRATWARM ALERT/MONDAY/STRATWARM EXISTS.
FINAL WARMING CONTINUES.
TEMPERATURE GRADIENT REVERSED BETWEEN 60N AND THE POLE
THROUGHOUT THE STRATOSPHERE.MEAN ZONAL WIND AT 60N CON-
TINUOUSLY WEAKENING IN THE LOWER STRATOSPHERE AND REACHED
EASTERLY DIRECTION AT 10HPA AND ABOVE.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 120 SSN 127 AFR/AP 023/033 X-RAY BACKGROUND B3.5 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 1.5E+05 GT 10 MEV 1.8E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.40E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 5 5 3 3 4 4 3 4 PLANETARY 5 5 4 3 5 5 4 4
F. Comments
None
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