Viewing archive of Saturday, 12 February 2000
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 2000 Feb 12 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 043 Issued at 0245Z on 12 FEB 2000 This report is compiled from data received at SWO on 11 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 TO
UNSETTLED UNTIL 11/0301UT WHEN A SUDDEN IMPULSE WAS OBSERVED
ON THE BOULDER MAGNETOMETER. ACTIVE CONDITIONS FOLLOWED DURING THE
11/0300-0600UT PERIOD. QUIET TO UNSETTLED CONDITIONS PREVAILED FROM
11/0600Z UNTIL A SECOND SI WAS OBSERVED AT 11/2353Z. ACTIVE
CONDITIONS FOLLOWED THE SECOND SHOCK. THE GREATER THAN 2 MEV
ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT WAS MODERATE TO HIGH.
D. Stratwarm
STRATWARM ALERT/FRIDAY/STRATWARM EXISTS.
INTENSE WARMING, CENTRED OVER THE HUDSON BAY AT
10HPA, CONTINUES. TEMPERATURE GRADIENT REVERSED
BETWEEN 60N AND THE POLE AT 5HPA AND ABOVE.
E. Daily Indices: (real-time preliminary/estimated values)
10 CM 170 SSN 184 AFR/AP 013/013 X-RAY BACKGROUND B7.3 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 5.7E+06 GT 10 MEV 1.7E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 4.70E+07 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 3 4 2 3 3 2 2 3 PLANETARY 3 4 2 3 3 3 3 3
F. Comments
None
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