:Product: 19980710RSGA.txt :Issued: 1998 Jul 10 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # JOINT USAF/NOAA REPORT OF SOLAR AND GEOPHYSICAL ACTIVITY SDF NUMBER 191 ISSUED AT 2200Z ON 10 JUL 1998 IA. ANALYSIS OF SOLAR ACTIVE REGIONS AND ACTIVITY FROM 09/2100Z TO 10/2100Z: SOLAR ACTIVITY WAS LOW. AN OPTICALLY UNCORRELATED C1 X-RAY FLARE OCCURRED AT 10/0410UT. THREE NEW REGIONS WERE NUMBERED TODAY AS REGION 8268 (N18W07) AND REGION 8269 (N19E68) AND REGION 8270 (S19E66). IB. SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO REMAIN LOW THROUGH THE FORECAST PERIOD. IIA. GEOPHYSICAL ACTIVITY SUMMARY FROM 09/2100Z TO 10/2100Z: THE GEOMAGNETIC FIELD WAS QUIET TO ACTIVE. IIB. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE QUIET TO UNSETTLED THROUGH THE FORECAST PERIOD. III. EVENT PROBABILITIES 11 JUL-13 JUL CLASS M 01/01/01 CLASS X 01/01/01 PROTON 01/01/01 PCAF GREEN IV. PENTICTON 10.7 CM FLUX OBSERVED 10 JUL 109 PREDICTED 11 JUL-13 JUL 107/106/105 90 DAY MEAN 10 JUL 107 V. GEOMAGNETIC A INDICES OBSERVED AFR/AP 09 JUL 010/011 ESTIMATED AFR/AP 10 JUL 005/007 PREDICTED AFR/AP 11 JUL-13 JUL 005/008-005/008-005/008 VI. GEOMAGNETIC ACTIVITY PROBABILITIES 11 JUL-13 JUL A. MIDDLE LATITUDES ACTIVE 10/10/10 MINOR STORM 05/05/05 MAJOR-SEVERE STORM 01/01/01 B. HIGH LATITUDES ACTIVE 20/20/20 MINOR STORM 10/10/10 MAJOR-SEVERE STORM 05/05/05 NOTICE: GOES-9 IS EXPERIENCING SEVERE ATTITUDE CONTROL PROBLEMS THAT OCCASIONALLY CAUSE THE LOSS OF X-RAY SENSOR DATA. GOES-10 IS BEING BROUGHT OUT OF STORAGE MODE AND WILL BE OPERATIONAL WITHIN THE NEXT WEEK. THERE MAY BE INTERMITTENT OR COMPLETE LOSS OF GOES-9 X-RAY DATA BEFORE GOES-10 BECOMES OPERATIONAL. GOES-8 DATA REMAIN VALID.