:Product: 19991013SGAS.txt :Issued: 1999 Oct 13 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 286 ISSUED AT 0245Z ON 13 OCT 1999 THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 12 OCT A. ENERGETIC EVENTS BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP 1310 1337 1414 C2.9 II 2322 2323 2325 120 B. PROTON EVENTS: NONE. C. GEOMAGNETIC ACTIVITY SUMMARY: THE GEOMAGNETIC FIELD RANGED FROM UNSETTLED TO MAJOR STORM LEVELS. THE MOST DISTURBED PERIOD WAS CENTERED AROUND MIDDAY. D. STRATWARM: NONE. E. DAILY INDICES: (REAL-TIME PRELIMINARY/ESTIMATED VALUES) 10 CM 184 SSN 191 AFR/AP 027/034 X-RAY BACKGROUND B7.9 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 2.2E+06 GT 10 MEV 1.3E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 3.50E+07 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 5 5 3 5 3 3 3 3 PLANETARY 4 5 4 6 5 4 4 4 F. COMMENTS: ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT REACHED HIGH LEVELS DURING THE DAY.