Sudden Ionospheric Disturbance Report -- April,2012 -- A112 A Son, Neerpelt, Belgium - 23.4khz (DHO) A118 L Loudet, Southern France - 19.0Khz (GQD) 24.0Khz (NAA) 45.9khz (NSY) A119 J Godet, Beauvais, France - 19.6Khz (GBZ) 19.0Khz (GQD) 20.3Khz (ICV) A120 B Terrill, Ballarat City, Victoria, - 19.8Khz (NWC) A122 F Adamson, Australia - 19.8Khz (NWC) A124 G Myers, Bothell, WA - 24.8kHZ (NLK) A125 S Oatney, Partridge, KS - 25.2khz (NML) 21.4Khz (NPM) A129 K Cotar, Kranj, Slovenia - 23.4khz (DHO) 19.6Khz (GBZ) A130 S Zinn, Harleysville, PA - 24.0Khz (NAA) 21.4Khz (NPM) A131 J Karlovsky, Hlohovec, Slovakia - 23.4khz (DHO) 20.3Khz (ICV) A132 E Soubrouillar, Pierrefeu du Var, France - 15.1Khz (HWU) A80 P King, Cambridge, England - 15.1Khz (HWU) A94 A McWilliams, St. Cloud, MN - 25.2khz (NML) A96 R Battaiola, Milan, Italy - 15.1Khz (HWU) A97 J Wallace, Torrington, CT - 24.0Khz (NAA) 40 120329 1420 1428 1422 1- 5HO23 A112 40 120401 1314 1342 1338 1+ 1AA24 A130 40 120401 1315 1411 1340 2+ 5PM21 A130 40 120401 1348 1402 1350 1- 1AA24 A130 40 120401 1509 1530 1511 1 1PM21 A130 40 120401 1510 1535 1512 1- 3AA24 A130 40 120401 2114 2226 2116 2+ 4AA24 A130 40 120401 2114 2119 2116 1- 5PM21 A130 40 120402 2111 2141 2119 1+ 5PM21 A130 40 120402 2117 2132 2118 1- 5AA24 A130 40 120402 2219 2302 2225 2 1PM21 A130 40 120402 2223 2238 2227 1- 1AA24 A130 40 120404 1050 1111 1059 1 1PM21 A130 40 120404 1052 1124 1058 1AA24 A130 40 120404 1230 1358 1312 2+ 3PM21 A130 40 120404 1249 1338 1311 2+ 1AA24 A130 40 120404 1555 1838 1830 3+ 2AA24 A130 40 120404 1605 1617 1610 1- -PM21 A125 40 120404 1609 1624 1612 1- 1ML25 A125 40 120404 1618 1650 1628 1+ 3WU21 A80 40 120404 1619 1644 1629 1 3QD22 A119 40 120404 1620 1655 1627 2 1QD22 A118 40 120404 1620 1645 1624 1+ 3HO23 A129 40 120404 1620 1724 1640 2+ 5ML25 A94 40 120404 1650 1836 1830 3 1PM21 A130 40 120404 1839 1922 1902 2 3PM21 A130 40 120404 1839 1935 1902 2+ 1AA24 A130 40 120404 2128 - 2137 3+ -ML25 A125 40 120404 2128 - 2137 3+ -PM21 A125 40 120405 1008 1200 1033 3 1PM21 A130 40 120405 1256 1350 1319 2+ 1PM21 A130 40 120405 1312 1436 1331 2+ 0AA24 A130 40 120405 1319 1336 1328 1- 4WU18 A96 40 120405 1322 1350 1325 1+ 1QD22 A118 40 120405 1322 1345 1330 1 5HO23 A131 40 120405 1439 1728 1611 3+ 2AA24 A130 40 120405 1550 1620 1611 1+ 1PM21 A130 40 120405 1620 1700 1625 2 5ML25 A94 40 120405 1620 1627 1623 1- 4WU18 A96 40 120405 1621 1650 1623 1+ 3QD22 A118 40 120405 1621 1633 1625 1- 5HO23 A131 40 120405 1622 1649 1625 1+ 5QD22 A119 40 120405 2055 2115 2110 1 5WC20 A122 40 120405 2100 2119 2108 1 2PM21 A130 40 120405 2106 2126 2109 1 1AA24 A130 40 120406 0356 0403 0359 1- 5WC20 A122 40 120407 1655 - 1709 3+ -ML25 A125 40 120407 1700 1715 1710 1- 3WU21 A80 40 120407 1701 1718 1709 1- 5HO23 A131 40 120407 1702 1719 1707 1- 4QD22 A119 40 120407 1703 1713 1709 1- 5LK25 A124 40 120407 1703 1725 1706 1 -PM21 A125 40 120407 1704 1720 1707 1- 1QD22 A118 40 120407 1704 1727 1710 1 5ML25 A94 40 120408 0207 0321 0306 2+ 5WC20 A122 40 120408 1635 1655 1640 1 1AA24 A130 40 120408 1637 1716 1640 2 1PM21 A130 40 120408 1830 1916 1844 2 2PM21 A130 40 120408 2004 2042 2022 2 1PM21 A130 40 120408 2124 2152 2148 1+ 0PM21 A130 40 120408 2135 2156 2145 1 0AA24 A130 40 120409 0118 0127 0122 1- 5WC20 A122 40 120409 1209 1309 1240 2+ 5WU18 A96 40 120409 1213 1800 1245 3+ 3WU21 A80 40 120409 1214 1321 1239 2+ 5QD22 A119 40 120409 1214 1324 1245 2+ 5CV20 A131 40 120409 1215 1345 1235 3 3QD22 A118 40 120409 1215 1250 1242 2 1ML25 A125 40 120409 1215 1321 1245 2+ 5HO23 A131 40 120409 1219 1330 1242 2+ 5CV20 A119 40 120409 1225 1344 1309 2+ 5WU18 A132 40 120409 1322 1511 1420 3 2AA24 A130 40 120409 1324 1512 1425 3 4PM21 A130 40 120410 1111 1128 1115 1- 3AA24 A130 40 120410 1135 1145 1137 1- 1QD22 A118 40 120410 1136 1144 1138 1- 5HO23 A131 40 120410 1137 1205 1152 1+ 4WU18 A132 40 120410 2138 2206 2144 1+ 3AA24 A130 40 120410 2140 2201 2142 1 3PM21 A130 40 120411 1047 1215 1203 2+ 4AA24 A130 40 120411 1152 1218 1203 1- 5PM21 A130 40 120411 1318 1351 1327 1 2PM21 A130 40 120411 1320 1452 1326 2+ 2AA24 A130 40 120411 1655 1718 1706 1 0PM21 A130 40 120411 1839 1949 1942 2+ 1PM21 A130 40 120411 1855 1957 1938 2+ 0AA24 A130 40 120411 2135 2250 2204 2+ 3PM21 A130 40 120411 2201 2217 2205 1- 1AA24 A130 40 120413 0502 0507 0504 1- 5WC20 A122 40 120413 1419 1457 1432 2 3AA24 A130 40 120413 1419 1546 1441 2+ 2PM21 A130 40 120413 1802 1858 1812 2+ 1PM21 A130 40 120413 1803 1835 1811 1+ 3AA24 A130 40 120414 1513 1527 1516 1- 1PM21 A130 40 120414 1513 1524 1517 1- 1AA24 A130 40 120415 0145 0152 0145 1- 5WC20 A122 40 120415 0245 0249 0247 1- 5WC20 A122 40 120415 0407 0421 0418 1- 5WC20 A122 40 120415 0908 0924 0911 1- 5HO23 A131 40 120415 1616 1655 1631 2 3AA24 A130 40 120415 1629 1656 1632 1 5PM21 A130 40 120415 1855 1934 1926 2 2PM21 A130 40 120415 1920 1934 1924 1- 0AA24 A130 40 120416 1357 1454 1441 2+ 1PM21 A130 40 120416 1525 1955 1743 3+ 2PM21 A130 40 120416 1724 1308 1745 3+ 4WU21 A80 40 120416 1730 1835 1737 2+ 5QD22 A118 40 120416 1730 1816 1738 2 5QD22 A119 40 120416 1730 1812 1740 2 5BZ20 A119 40 120416 1730 1810 1737 2 5LK25 A124 40 120416 1730 1757 1743 1+ 5HO23 A131 40 120416 1731 1758 1738 1+ 5CV20 A131 40 120416 1731 1855 1749 2+ 5ML25 A94 40 120416 1732 1740 1736 1- 4WU18 A96 40 120416 1735 1803 1738 2 4CV20 A119 40 120417 1104 1122 1117 1- 0AA24 A130 40 120417 1257 1315 1304 1- 1PM21 A130 40 120417 1258 1318 1303 1 1AA24 A130 40 120417 1618 1631 1623 1- 1PM21 A130 40 120417 1722 1739 1727 1- 5PM21 A130 40 120417 1724 1738 1726 1- 3AA24 A130 40 120417 2039 2203 2138 2+ 5PM21 A130 40 120417 2135 2150 2141 1- 2AA24 A130 40 120417 2205 2226 2221 1 5WC20 A122 40 120417 2230 2258 2239 1+ 2PM21 A130 40 120418 1125 1204 1148 2 5HO23 A131 40 120418 1128 1155 1145 1+ 3WU21 A80 40 120418 1129 1208 1146 2 5CV20 A131 40 120418 1130 1210 1135 2 2QD22 A118 40 120418 1131 1211 1140 2 4QD22 A119 40 120418 1132 1211 1142 2 5BZ20 A119 40 120418 1133 1235 1149 1+ 5HO23 A112 40 120418 1215 1247 1242 1+ 1PM21 A130 40 120418 1216 1254 1243 2 4AA24 A130 40 120418 1216 1238 1224 1 2AA24 A97 40 120418 1230 1250 1240 1 4WU21 A80 40 120418 1233 1341 1241 2+ 5HO23 A131 40 120418 1234 1420 1240 3 5BZ20 A119 40 120418 1234 1403 1244 3 5CV20 A131 40 120418 1234 1243 1238 1- 5WU18 A96 40 120418 1235 1404 1244 3 5QD22 A119 40 120418 1235 1340 1238 2+ 4BZ20 A129 40 120418 1236 1415 1238 3 5QD22 A118 40 120418 1236 1345 1244 2+ 5CV20 A119 40 120418 1450 1520 1514 1+ 4WU21 A80 40 120418 1459 1601 1513 2+ 5QD22 A119 40 120418 1502 1535 1514 2 5WU18 A96 40 120418 1503 1541 1515 2 5CV20 A131 40 120418 1503 1532 1512 1+ 5AA24 A97 40 120418 1504 1548 1514 2 5BZ20 A119 40 120418 1504 1600 1515 2+ 5ML25 A94 40 120418 1505 1550 1514 2 4HO23 A129 40 120418 1505 1540 1515 2 5HO23 A131 40 120418 1509 1615 1513 2+ 5QD22 A118 40 120418 1509 1624 1515 2+ 3ML25 A125 40 120418 1510 1546 1515 2 5CV20 A119 40 120418 1650 1726 1704 2 4AA24 A97 40 120418 1655 1711 1706 1- 2ML25 A125 40 120418 1657 1745 1703 2+ 4QD22 A118 40 120418 1657 1722 1708 1+ 5CV20 A131 40 120418 1657 1726 1712 1+ 5HO23 A131 40 120418 1658 1725 1710 1+ 4HO23 A129 40 120418 1658 1807 1709 2+ 5ML25 A94 40 120418 1700 1729 1707 1+ 5QD22 A119 40 120418 1700 1744 1708 2 4CV20 A119 40 120418 1701 1722 1705 1 4BZ20 A119 40 120418 1811 1820 1815 1- 3WU21 A80 40 120419 0002 0017 0008 1- 5WC20 A122 40 120419 0254 0314 0259 1 5WC20 A122 40 120419 1058 1146 1119 2+ 1PM21 A130 40 120419 1105 1207 1126 2+ 5CV20 A131 40 120419 1105 1145 1125 2 4WU21 A80 40 120419 1107 1231 1129 2+ 5HO23 A131 40 120419 1116 1310 1124 3 5BZ20 A119 40 120419 1116 1257 1125 3 5QD22 A119 40 120419 1117 1126 1121 1- 5WU18 A96 40 120419 1118 1210 1123 2+ 5QD22 A118 40 120419 1118 1220 1122 2+ 4BZ20 A129 40 120419 1120 1204 1128 2 5WU18 A132 40 120419 1121 1205 1125 2 4CV20 A119 40 120419 1142 1521 1515 3+ 4WU21 A80 40 120419 1446 1521 1455 2 5HO23 A131 40 120419 1452 1530 1455 2 2QD22 A118 40 120419 2139 2155 2143 1- 3AA24 A130 40 120419 2140 2241 2143 2+ 5PM21 A130 40 120420 1151 1216 1204 1- 2PM21 A130 40 120420 1444 1456 1450 1- 1AA24 A130 40 120420 1444 1459 1452 1- 0PM21 A130 40 120420 1450 1605 1500 2+ 4WU21 A80 40 120420 1453 1520 1457 1+ 1QD22 A118 40 120420 1456 1512 1503 1- 2WU18 A96 40 120420 1508 1530 1514 1 0PM21 A130 40 120420 1508 1515 1511 1- 5HO23 A131 40 120420 1510 1531 1518 1 2AA24 A130 40 120420 1536 1729 1654 3 2PM21 A130 40 120420 1536 1731 1653 3 3AA24 A130 40 120420 1637 1648 1646 1- 2AA24 A97 40 120420 1645 1650 1648 1- 4WU21 A80 40 120420 1645 1653 1649 1- 3WU18 A96 40 120420 1646 1700 1648 1- 1QD22 A118 40 120420 1646 1658 1648 1- 5ML25 A94 40 120420 1647 1654 1648 1- 5HO23 A131 40 120420 1722 1742 1730 1 5ML25 A94 40 120420 1748 1805 1750 1- 3HO23 A129 40 120420 1803 2047 1820 3+ 2AA24 A130 40 120420 2144 2302 2245 2+ 3AA24 A130 40 120421 0110 0119 0117 1- 5WC20 A122 40 120421 1058 1136 1116 2 5HO23 A131 40 120421 1101 1138 1116 2 5CV20 A131 40 120421 1730 1758 1748 1+ 0AA24 A130 40 120421 1745 1802 1750 1- 1PM21 A130 40 120421 2012 2027 2015 1- 5ML25 A94 40 120422 1351 1443 1409 2+ 1PM21 A130 40 120422 1403 1420 1405 1- 1QD22 A118 40 120422 1751 1818 1755 1+ 5ML25 A94 40 120422 2010 2024 2017 1- 1AA24 A130 40 120422 2012 2026 2014 1- 3PM21 A130 40 120422 2054 2133 2058 2 5ML25 A94 40 120422 2106 2145 2139 2 1PM21 A130 40 120422 2143 2200 2150 1- 5ML25 A94 40 120423 0510 0545 0522 2 3HO23 A129 40 120423 1742 1816 1753 2 5ML25 A94 40 120424 0740 0817 0753 2 4WU18 A96 40 120424 0741 0825 0745 3+ 5QD22 A118 40 120424 0741 0824 0754 2 5CV20 A131 40 120424 0742 0827 0751 2 5BZ20 A119 40 120424 0742 0824 0751 2 4QD22 A119 40 120424 0742 0832 0752 2+ 3CV20 A119 40 120424 1308 1322 1312 1- 5CV20 A131 40 120424 1308 1328 1313 1 5HO23 A131 40 120424 1308 1319 1312 1- 2WU18 A96 40 120424 1445 1452 1447 1- 5HO23 A131 40 120424 1638 1715 1643 2 4QD22 A119 40 120424 1638 1655 1644 1- 5HO23 A131 40 120424 1640 1715 1643 2 3QD22 A118 40 120424 1640 1717 1643 2 5BZ20 A119 40 120424 1641 1659 1645 1 5CV20 A131 40 120425 1200 1237 1215 2 5WU18 A96 40 120425 1208 1256 1218 2+ 5CV20 A131 40 120425 1208 1253 1217 2 5HO23 A131 40 120425 1209 1220 1215 1- 4WU21 A80 40 120425 1210 1250 1215 2 5QD22 A118 40 120425 1210 1300 1218 2+ 5WU18 A132 40 120425 1211 1313 1214 2+ 5QD22 A119 40 120425 1211 1242 1213 1+ 3CV20 A119 40 120425 1212 1304 1214 2+ 5BZ20 A119 40 120425 2234 2247 2235 1- 0PM21 A130 40 120426 1715 1735 1722 1 2AA24 A118 40 120426 1715 1735 1722 1 2AA24 A118 40 120426 1719 1738 1728 1- 1PM21 A130 40 120427 0814 0930 0823 2+ 5BZ20 A119 40 120427 0815 0926 0825 2+ 5HO23 A131 40 120427 0816 0916 0826 2+ 5CV20 A131 40 120427 0816 0902 0824 2+ 3WU18 A96 40 120427 0818 0915 0822 3+ 5QD22 A118 40 120427 0818 0931 0825 2+ 5QD22 A119 40 120427 0819 0926 0824 2+ 5CV20 A119 40 120427 0820 0850 0824 1+ 4BZ20 A129 40 120427 0820 0910u0822 2+ 4HO23 A129 40 120427 1044 1136 1102 2+ 5BZ20 A119 40 120427 1046 1130 1102 2 4QD22 A118 40 120427 1049 1151 1058 2+ 5QD22 A119 40 120427 1052 1125 1105 2 5CV20 A131 40 120427 1053 1128 1104 2 5HO23 A131 40 120427 1320 1350 1323 1+ 3QD22 A118 40 120427 1320 1329 1324 1- 0PM21 A130 40 120427 1320 1341 1327 1 5CV20 A131 40 120427 1320 1337 1327 1- 5HO23 A131 40 120427 1321 1345 1326 1 5BZ20 A119 40 120427 1332 1344 1335 1- 1PM21 A130 40 120427 2011 2047 2033 2 1PM21 A130 40 120427 2144 2154 2149 1- 1PM21 A130 40 120427 2158 2209 2202 1- 1PM21 A130 40 120428 0857 0910 0902 3+ 1QD22 A118 40 120428 0857 0918 0904 1 5HO23 A131 40 120428 1211 1246 1217 2 0PM21 A130 40 120428 1418 1434 1426 1- 0AA24 A130 40 120428 1438 1451 1442 1- 0PM21 A130 40 120429 1057 1110 1100 1- 3WU22 A132 40 120429 1512 1530 1540 1 3WU22 A132 40 120430 0658 0832 0742 3 5CV20 A131 40 120430 0659 0815 0723 3+ 5QD22 A118 40 120430 0912 0929 0920 1- 5HO23 A131 40 120430 0913 0940 0919 1+ 5BZ20 A119 40 120430 0915 0940 0917 1 5QD22 A118 40 120430 0915 0950 0923 2 5WU22 A132 40 120430 1023 1036D1027 1 5BZ20 A119 40 120430 1023 1040 1029 1- 5HO23 A131 40 120430 1024 1038D1028 1- 5QD22 A118 40 120430 1024 1036D1027 1 5QD22 A119 40 120430 1025 1210 1044 3 5WU22 A132 40 120430 1033 1050 1037 1- 1QD22 A118 40 120430 1033 1050 1037 1- 1QD22 A118 40 120430 1036E1140 1043 2+ 5QD22 A119 40 120430 1036E1130 1043 2+ 5BZ20 A119 40 120430 1038 1130 1041 2+ 5QD22 A118 40 120430 1040 1123 1044 2 5HO23 A131 40 120430 1434 1444 1437 1- 5CV20 A131 40 120430 1434 1445 1440 1- 5HO23 A131 40 120430 1753 1825 1802 1+ 1PM21 A130 40 120424 1634 1649 1643 1- 3AA24 A97 -- End Report --