AAVSO Sudden Ionospheric Disturbance Report March 1992 Observers: A-03 A-09 A-40 A-50 A-52 A-59 A-61 A-62 A-63 A-64 A-65 A-66 A-67 A-68 A-69 A-70 A-71 A-72 A-73 A-74 YYMMDD Event Peak (UT) Importance 920301 1631 1 920301 1951 1 920302 0252 1- 920302 1755 1 920302 2136 1- 920303 1600 1 920304 1620 2 920304 1653 1+ 920304 2139 1- 920305 1211 1- 920305 1630 1- 920305 1645 1- 920305 1802 1- 920305 2246 2+ 920306 1510 1 920306 1545 1 920306 2315 1- 920307 0206 1- 920307 1459 1- 920307 2059 1- 920308 0049 2+ 920308 1422 1+ 920308 1515 1 920308 1626 2 920308 1729 3+ 920308 2049 1 920308 2115 1 920309 0240 1+ 920309 0903 1 920309 1157 2+ 920309 1215 1- 920309 1338 1- 920309 1414 1- 920309 2140 1 920310 0054 1 920310 1455 1 920310 1951 2+ 920310 2306 1- 920311 0014 1 920311 0238 2 920311 0700 1+ 920311 1500 1- 920311 1807 1 920311 2015 1- 920312 1428 1- 920312 1645 1- 920312 1752 1 920312 1818 1- 920313 0030 1- 920313 0924 1- 920313 1534 1- 920313 1621 1+ 920313 1858 1- 920313 1902 1- 920313 1936 1- 920313 1958 1- 920313 2145 1- 920314 1429 1+ 920314 2228 1 920315 0003 1- 920315 0141 2 920315 0842 2 920315 1022 2 920315 1558 1+ 920315 1800 1- 920315 1900 1- 920315 1951 1- 920316 0607 1 920316 1000 2+ 920316 1129 1 920316 1325 1- 920316 1520 1- 920316 1538 1+ 920316 2015 2 920316 2131 1- 920316 2143 1- 920316 2354 1- 920317 1553 1 920317 1631 1+ 920317 1835 2 920317 1951 1- 920317 2310 1 920318 1520 1- 920318 1558 1- 920318 2015 1- 920318 2158 1- 920319 1128 1+ 920319 1517 1 920319 1530 1 920319 1930 1 920320 0007 1- 920320 1006 1 920320 1209 2 920320 1241 1- 920320 1500 1 920320 1831 1- 920320 1959 1- 920320 2116 1- 920320 2146 1- 920321 0715 2 920321 1153 2+ 920321 1321 1- 920322 1716 1 920322 2029 1+ 920323 1202 1 920323 1321 1- 920323 1651 1- 920323 1722 2+ 920323 1839 2+ 920323 2021 1- 920324 0017 1 920324 1223 1 920324 1507 1- 920324 2209 1- 920324 2303 1- 920324 2321 2 920325 0051 1- 920325 0151 1- 920325 0746 1 920325 1234 1- 920325 1322 1- 920325 1338 1 920325 1610 1 920325 1729 2 920325 1849 1+ 920325 2025 1 920325 0102 1+ 920326 1029 1 920326 1423 1- 920326 1534 1- 920326 1858 1- 920326 2048 1- 920326 2106 1- 920326 2317 1+ 920327 0817 1- 920327 1137 1- 920327 1313 2 920327 1837 1- 920327 2031 1- 920327 2100 1 920328 1811 2 920328 2258 1+ 920328 2305 1- 920329 0057 1+ 920329 0857 1- 920329 1228 1 920329 1406 2 920330 0054 1- 920330 1614 1 920330 1900 1 920330 2004 1- 920330 2030 1 920330 2152 1- 920331 0006 1- 920331 0737 2 920331 1432 1+ 920331 1502 2 920331 1544 3 920331 2036 2 920331 2302 2 ******************************************* Importance Summary March 1992 1- events: 74 1 events: 40 1+ events: 17 2 events: 19 2+ events: 8 3 events: 1 3+ events: 1 Total events: 160