:Product: 20000516SGAS.txt :Issued: 2000 May 16 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 137 ISSUED AT 0245Z ON 16 MAY 2000 THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 15 MAY A. ENERGETIC EVENTS BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP 0447 0457 0508 M1.3 0816 0902 0928 9002 N21E75 M4.4 SF 400 640 1046 1050 1056 M1.2 160 1546 1601 1618 8993 S24W67 C7.8 1F 50 1500 1638 1644 1649 8998 S15E51 M1.1 SF 100 1757 1802 1805 8993 S21W69 M1.2 SF 1848 1853 1856 9002 N21E73 M2.0 1N B. PROTON EVENTS: A WEAK GT 10 MEV PROTON ENHANCEMENT BEGAN NEAR 15/1600Z. AT THE END OF THE PERIOD THE FLUX REACHED 1 PFU AND WAS SLOWLY INCREASING. C. GEOMAGNETIC ACTIVITY SUMMARY: THE GEOMAGNETIC FIELD WAS QUIET TO ACTIVE. THE MOST DISTURBED PERIODS WERE FROM 15/0000-0300Z AND 15/0900-1200Z. D. STRATWARM: NONE. E. DAILY INDICES: (REAL-TIME PRELIMINARY/ESTIMATED VALUES) 10 CM 244 SSN 302 AFR/AP 010/016 X-RAY BACKGROUND C1.8 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 2.9E+05 GT 10 MEV 1.6E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 4.30E+05 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 4 3 2 3 2 3 2 2 PLANETARY 4 3 3 4 3 2 2 3 F. COMMENTS: NONE.