AAVSO Sudden Ionospheric Disturbance Report July 1998 Observers: A-09 A-50 A-52 A-62 A-63 A-72 A-80 A-84 A-87 YYMMDD Event Peak (UT) Importance 980701 1813 2 980701 1841 1 980703 2007 1 980704 0550 2 980704 1015 2 980704 1212 2+ 980704 1454 2 980704 1643 2+ 980704 1847 2 980705 1143 2 980705 1825 1+ 980711 1251 1+ 980714 1255 2+ 980714 1904 2 980715 1054 1+ 980715 1517 1+ 980715 1559 2+ 980715 1954 2+ 980716 1623 2 980716 2029 2 980718 1656 2 980719 1844 1- ******************************************* Importance Summary July 1998 1- events: 1 1 events: 2 1+ events: 4 2 events: 10 2+ events: 5 3 events: 0 3+ events: 0 Total events: 22