:Product: 19990908SGAS.txt :Issued: 1999 Sep 08 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 251 ISSUED AT 0245Z ON 08 SEP 1999 THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 07 SEP A. ENERGETIC EVENTS BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP 0435 0435 0435 110 2258 2307 2319 8690 N13E59 C2.7 SF 260 B. PROTON EVENTS: NONE. C. GEOMAGNETIC ACTIVITY SUMMARY: THE GEOMAGNETIC FIELD BEGAN THE PERIOD AT QUIET TO UNSETTLED LEVELS. AFTER 07/0600Z, UNSETTLED TO ACTIVE CONDITIONS WERE OBSERVED. D. STRATWARM: NONE. E. DAILY INDICES: (REAL-TIME PRELIMINARY/ESTIMATED VALUES) 10 CM 112 SSN 111 AFR/AP 014/017 X-RAY BACKGROUND B4.1 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 1.1E+05 GT 10 MEV 1.5E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 9.40E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 2 1 3 4 3 3 3 3 PLANETARY 2 1 4 4 3 3 4 4 F. COMMENTS: NONE.