AAVSO Sudden Ionospheric Disturbance Report February 1983 Observers: A-01 A-09 A-19 A-26 A-28 A-31 A-46 A-49 A-50 A-51 A-52 A-54 A-55 A-56 YYMMDD Event Peak (UT) Importance 830201 1911 1 830203 0607 2 830203 1841 1 830204 1806 1 830204 1855 1- 830204 1915 1+ 830205 0709 1- 830205 0942 1 830205 1328 1- 830205 1751 1 830205 1910 1- 830206 0522 1- 830206 1357 2 830208 1800 1 830209 0615 2 830209 1750 1- 830209 2032 2 830210 1753 2 830210 2246 1+ 830211 0815 1- 830211 1452 1 830211 1820 1- 830211 2055 1+ 830212 1852 1 830213 2129 1+ 830217 1827 1+ 830219 1325 1 830220 2019 1 830222 1939 2 830223 1623 1+ 830223 2110 1- 830224 1900 1- 830225 1525 1 830225 2043 1- 830227 2203 1- 830228 2300 1- ******************************************* Importance Summary February 1983 1- events: 13 1 events: 11 1+ events: 6 2 events: 6 2+ events: 0 3 events: 0 3+ events: 0 Total events: 36