:Product: 19980508SGAS.txt :Issued: 1998 May 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 128 ISSUED AT 0245Z ON 08 MAY 1998 THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 07 MAY A. ENERGETIC EVENTS BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP 0044 0044 0044 260 0106 0110 0112 8214 N29W40 C3.5 SF 490 17 0455 0456 0456 180 0532 0532 0533 850 37 1105 1116 1127 8214 N29W47 M2.9 1B 26 1331 1350 1405 8214 N28W47 M1.3 SF 150 22 1844 1844 1844 130 1923 1925 1925 100 2236 2236 2237 200 B. PROTON EVENTS: THE GT 10 MEV EVENT THAT BEGAN ON 06/0835Z ENDED AT 07/0140Z. C. GEOMAGNETIC ACTIVITY SUMMARY: THE GEOMAGNETIC FIELD WAS PREDOMINANTLY QUIET TO UNSETTLED. BRIEF ACTIVE CONDITIONS AT HIGH LATITUDES WERE OBSERVED FROM 07/0900-1200Z. D. STRATWARM: NONE. E. DAILY INDICES: 10 CM 123 SSN 082 AFR/AP 011/013 X-RAY BACKGROUND C2.4 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 1.6E+07 GT 10 MEV 3.7E+05 P/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.10E+09 E/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) 3 HOUR K-INDICES: BOULDER 2 3 3 3 2 2 2 3 PLANETARY 3 3 2 4 2 3 3 3 F. COMMENTS: THE ENERGETIC ELECTRON FLUENCE AT GEOSYNCHRONOUS ORBIT WAS VERY HIGH. A MODERATE INTENSITY 245 MHZ RADIO NOISE STORM WAS IN PROGRESS FOR THE MAJORITY OF THE PERIOD.