:Product: 20000221SGAS.txt :Issued: 2000 Feb 21 0245 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # JOINT USAF/NOAA SOLAR AND GEOPHYSICAL ACTIVITY SUMMARY SGAS NUMBER 052 ISSUED AT 0245Z ON 21 FEB 2000 THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 20 FEB A. ENERGETIC EVENTS BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP 0658 0658 0658 280 2200 2207 2213 M2.4 1100 130 II B. PROTON EVENTS: NONE C. GEOMAGNETIC ACTIVITY SUMMARY: A SUDDEN IMPULSE OF 15 NANOTESLAS OCCURRED AT BOULDER AT 2140Z. QUIET TO UNSETTLED CONDITIONS DOMINATED THROUGHOUT THE DAY. D. STRATWARM: NONE E. DAILY INDICES: (REAL-TIME PRELIMINARY/ESTIMATED VALUES) 10 CM 153 SSN 131 AFR/AP 005/005 X-RAY BACKGROUND B9.0 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 1.7E+06 GT 10 MEV 4.1E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.90E+07 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 0 1 2 2 1 1 1 3 PLANETARY 1 0 3 1 0 0 2 3 F. COMMENTS: NONE