AAVSO Sudden Ionospheric Disturbance Report February 2014 Observers: A118 A120 A122 A125 A129 A131 A134 A136 A137 A138 A139 A142 A94 A96 A97 YYMMDD Event Peak Importance 140201 0018 2+ A122 - FLA 140201 0124 2+ 140201 0130 2 140201 0545 1+ 140201 0656 1+ A137 - QUAL 140201 0720 2 140201 1046 1- 140201 1226 2+ A137 - XRA 140201 1233 1- 140201 1356 1- 140201 1452 2+ A125 - QUAL 140201 1602 1- A118 - XRA 140201 2047 1- A94 - XRA 140202 0116 2 140202 0304 2 140202 0414 1 A122 - XRA 140202 0605 1 140202 0630 1 140202 0743 1 A120 - QUAL 140202 0755 2 A137 - QUAL 140202 0819 2 140202 0900 1 A131 - FLA 140202 0930 2 140202 0939 2 A137 - XRA 140202 1130 1- A131 - QUAL 140202 1151 1+ 140202 1157 1- 140202 1407 1- 140202 1421 1- 140202 1436 1- 140202 1627 1- 140202 1747 3+ A125 - QUAL 140202 1813 2 140202 2009 1 A94 - XRA 140202 2132 2+ A125 - QUAL 140202 2202 1+ 140202 2231 2 A122 - XRA 140203 0101 1+ A137 - XRA 140203 0535 3 A122 - XRA 140203 0620 1+ 140203 0830 1+ 140203 1021 1- 140203 1101 1 140203 1251 2 140203 1257 1 140203 1326 1 140203 1337 1+ 140203 1353 1- 140203 1409 1+ A125 - QUAL 140203 1438 1- 140203 1545 1- 140203 1750 2 A125 - XRA 140203 1800 2 A94 - XRA 140203 1936 2+ 140203 2233 1 140203 2307 1+ A125 - QUAL 140204 0115 2+ A120 - XRA 140204 0123 3 A122 - XRA 140204 0400 3 A122 - XRA 140204 0923 1- 140204 0944 2 140204 0953 2 140204 0959 1+ 140204 1108 1 A131 - QUAL 140204 1140 1- A131 - QUAL 140204 1218 1+ 140204 1302 1- 140204 1353 2 140204 1401 1- 140204 1436 1 140204 1530 1+ 140204 1600 2+ A97 - XRA 140204 1606 2+ A137 - XRA 140204 1657 1+ A125 - QUAL 140204 1703 1 A125 - QUAL 140204 1941 2+ 140204 2009 1+ 140204 2021 1+ 140204 2148 1+ A94 - XRA 140204 2237 1 A125 - QUAL 140205 0545 2 140205 0752 1+ A131 - XRA 140205 0840 1- A131 - FLA 140205 0926 1+ A136 - FLA 140205 0952 2 140205 1022 1- 140205 1108 1- A131 - QUAL 140205 1117 1- A131 - QUAL 140205 1124 1- A131 - QUAL 140205 1134 1- A131 - QUAL 140205 1249 2 140205 1445 1- 140205 1619 1 140205 1843 1+ 140205 1938 2 A137 - QUAL 140205 1950 2 A125 - XRA 140205 2002 2 A94 - XRA 140205 2219 2 140206 0030 1- 140206 0251 2 A122 - XRA 140206 0423 2 140206 1156 1- 140206 1446 1- 140206 1453 1 140206 1620 1- A118 - XRA 140206 1806 1- A125 - QUAL 140206 1836 1- A125 - QUAL 140206 1912 1- A125 - QUAL 140206 1926 1- A125 - QUAL 140206 2258 1+ 140206 2307 2 140206 2334 1- A125 - QUAL 140207 0008 1+ A120 - XRA 140207 0019 2+ A122 - XRA 140207 0454 3 140207 0839 1- 140207 0901 1- 140207 1007 1- 140207 1029 1+ 140207 1415 1+ A125 - QUAL 140207 1444 1- 140207 1519 1- A125 - QUAL 140207 1705 1- A125 - QUAL 140207 2201 1- 140207 2230 3 A125 - QUAL 140207 2240 2 A125 - QUAL 140208 0215 1+ A122 - XRA 140208 1229 1- 140208 1253 1- A131 - XRA 140208 1832 1+ 140209 0517 1- A122 - XRA 140209 1204 2 A136 - XRA 140209 1559 2+ A118 - QUAL 140209 1615 2+ 140209 1834 2+ A125 - QUAL 140209 1918 1 A125 - QUAL 140209 2027 1 A125 - XRA 140209 2159 1- A125 - QUAL 140209 2222 1- A125 - QUAL 140209 2234 1- A125 - QUAL 140209 2244 1- A125 - QUAL 140209 2303 1- A125 - FLA 140209 2326 2 A134 - XRA 140210 1312 1- 140210 1409 1- 140210 1655 1 A94 - XRA 140211 0330 2 140211 0425 2+ 140211 1120 3 A118 - QUAL 140211 1352 1+ 140211 1415 1 A125 - QUAL 140211 1439 1 A125 - QUAL 140211 1641 2 A118 - XRA 140211 1650 3 A97 - XRA 140211 1857 2 A125 - QUAL 140211 1906 1- A125 - QUAL 140211 2008 2+ A94 - QUAL 140211 2344 2 A125 - FLA 140212 0352 1+ A120 - QUAL 140212 0359 2+ A137 - QUAL 140212 0420 2 140212 0658 2 140212 0830 1- A131 - QUAL 140212 1143 1 140212 1234 1+ 140212 1240 1 140212 1551 1+ 140212 1601 2+ 140212 1944 2 140212 2124 2 A125 - XRA 140212 2131 1 A94 - XRA 140212 2303 1- A120 - XRA 140213 0140 1+ 140213 0233 2 140213 0252 2 140213 0545 2 A120 - XRA 140213 0600 1+ 140213 0611 1+ 140213 0708 2 140213 0813 1+ 140213 0957 1 A131 - FLA 140213 1032 2 140213 1039 1 140213 1050 2+ 140213 1126 1- A131 - FLA 140213 1244 2 140213 1554 1 140213 1924 1- A134 - QUAL 140213 1942 2 A125 - XRA 140213 1956 2 A94 - XRA 140213 2028 2 A125 - QUAL 140213 2243 1+ A125 - QUAL 140213 3138 1- A122 - QUAL 140214 0251 1+ 140214 0430 1+ 140214 0642 1+ A134 - XRA 140214 0652 1+ A120 - XRA 140214 0738 1- 140214 1013 1 140214 1042 2 140214 1239 2 140214 1245 2 140214 1328 1+ 140214 1430 2+ A125 - FLA 140214 1437 1+ A125 - FLA 140214 1639 1- 140214 1725 1+ 140215 0203 2+ A122 - XRA 140215 0320 1+ 140215 0554 2 140215 0927 2+ A129 - QUAL 140215 1358 2 A129 - FLA 140215 2155 2 A120 - XRA 140216 0927 1 140216 1040 3 A142 - QUAL 140216 1400 1 140216 1659 1- A94 - XRA 140216 1926 1 A94 - XRA 140216 2018 2+ A125 - QUAL 140216 2157 1 140216 2249 1 140217 0259 2 A134 - XRA 140217 0810 1- 140217 1404 1 140217 1526 1- 140217 1607 1+ A125 - FLA 140217 2237 2+ A125 - QUAL 140218 0132 1+ 140218 0958 1 140218 1323 1- 140218 2033 1- A94 - XRA 140218 2300 2 A125 - QUAL 140219 0725 1 A131 - XRA 140219 1024 1 140219 1415 1- A125 - QUAL 140219 2206 1- 140219 2232 2+ A125 - XRA 140219 2350 1 A138 - QUAL 140220 0335 2+ A122 - XRA 140220 0747 2 140220 0757 2+ 140220 1850 1- A125 - QUAL 140220 2238 1+ 140220 2253 2 A125 - QUAL 140221 0610 1 A137 - XRA 140221 1112 1 140221 1324 1- 140221 2100 1- A125 - QUAL 140221 2159 3+ A125 - QUAL 140222 0916 1- 140222 1417 1 A125 - FLA 140222 1539 1+ 140222 1543 1+ 140222 1650 2 A125 - QUAL 140223 0608 3 140223 1030 1- 140223 1150 1 140223 1211 1 140223 1335 1 140224 0025 2+ A125 - QUAL 140224 1110 2+ 140224 1117 2 140224 1205 1+ 140224 1324 1- A125 - QUAL 140224 1449 1 140224 2138 2 140225 0046 2 A134 - XRA 140225 0123 1- A125 - FLA 140225 0249 3+ A122 - FLA 140225 0436 1 A120 - XRA 140225 0621 1- 140225 1510 1 140225 1748 1 140226 0400 2+ 140226 1054 1- 140226 1253 1- 140226 1500 1 140227 0722 1- A118 - XRA 140227 0842 1- 140227 0936 1- A131 - QUAL 140227 0953 1- 140227 1046 1- 140227 1231 1+ 140227 1251 2+ A125 - QUAL 140227 1540 1- A118 - XRA 140227 1719 1 A94 - XRA 140227 1725 1 A137 - XRA 140227 2202 1- A118 - XRA 140227 2202 1- A118 - XRA 140228 0050 1+ 140228 0229 1 140228 0238 1- 140228 0358 1 A134 - XRA 140228 0936 1- 140228 0955 2 140228 1258 1+ A137 - XRA 140228 1712 1- 140228 2238 3+ A125 - QUAL ************************************************** Importance Summary - Feb 2014 1- events: 88 1 events: 53 1+ events: 52 2 events: 61 2+ events: 31 3 events: 9 3+ events: 4 ------------------ Total events: 298