Sudden Ionospheric Disturbance Report -- April,2017 -- A118 L Loudet, Southern France - 23.4kHz (DHO) 19.6kHz (GBZ) 24.0kHz (NAA) A119 J Godet, Beauvais, France - 19.6kHz (GBZ) 22.1kHz (GQD) 20.3kHz (ICV) A120 B Terrill, Ballarat, Australia - 19.8kHz (NWC) A122 F Adamson, Australia - 19.8kHz (NWC) A131 J Karlovsky, Hlohovec, Slovakia - 23.4kHz (DHO) 45.9kHz (NSY) A134 R Green, Geelong, Australia - 19.8kHz (NWC) A136 R Mrllak, Hradec Kralove, Czech Re - 22.1kHz (GQD) 45.9kHz (NSY) A138 S Aguirre, Hermosillo, Mexico - 21.4kHz (NPM) A141 G Silvis, Bourne, MA - 24.8kHz (NLK) 25.2kHz (NML) A142 I Ryumshin, Shchigry, Russia - 23.4kHz (DHO) 22.1kHz (GQD) A143 R Rogge, Konstanz, Germany - 23.4kHz (DHO) 22.1kHz (GQD) 20.3kHz (ICV) A146 K Menzies, Framingham, MA - 24.0kHz (NAA) A147 D Russel, Colorado Springs, CO - 25.2kHz (NML) A149 L Ferreira, Port Elizabeth, SA - 19.8kHz (NWC) A96 R Battaiola, Milan, Italy - 15.1kHz (HWU) A97 J Wallace, Durham, ME - 24.0kHz (NAA) 40 170401 0325 0431 0356 2+ 5WC20 A122 40 170401 1033 1048 1037 1- 1QD22 A136 40 170401 1033 1048 1037 1- 1SY46 A136 40 170401 1930 2027 1956 2+ 5AA24 A97 40 170401 1937 2024 1957 2+ 5LK25 A141 40 170401 1940 2020 2000 2 2PM21 A138 40 170401 1940 2018 1950 2 5AA24 A141 40 170401 1940 2025 1954 2 4AA24 A146 40 170401 1941 2019 1955 2 5PM21 A141 40 170401 1954 2033 2010 2 5ML25 A147 40 170401 2120 2248 2153 3 5LK25 A141 40 170401 2140 2255 2142 2+ 2+PM21 A138 40 170401 2142 2226 2151 2 4AA24 A146 40 170401 2142 2226 2151 2 4AA24 A146 40 170401 2143 2218 2147 2 5AA24 A141 40 170401 2143 2221 2149 2 5AA24 A97 40 170401 2147 2212 2156 1 5ML25 A141 40 170401 2153 2257 2211 2+ 5ML25 A147 40 170401 2200 2300 2205 2+ 5WC20 A122 40 170401 2249 2339 2304 2+ 2WC20 A134 40 170401 2305 2320 2310 1- 1-PM21 A138 40 170402 0235 0442 0249 3+ 3WC20 A134 40 170402 0246 0337 0246 2+ 5WC20 A122 40 170402 0750 1000 0800 3+ 5QD22 A142 40 170402 0752 0959 0804 3+ 5HO23 A131 40 170402 0753 0945 0757 3 5HO23 A118 40 170402 0753 1028 0802 3+ 5QD22 A119 40 170402 0753 1000 0758 3+ 5CV20 A119 40 170402 0753 1009 0800 3+ 5BZ20 A119 40 170402 0753 0925 0759 3 5SY46 A131 40 170402 0753 0949 0756 3 3SY46 A136 40 170402 0753 0949 0756 3 3QD22 A136 40 170402 0754 0913 0805 2+ 5WU22 A96 40 170402 0755 0854 0806 2+ 5WC20 A122 40 170402 0755 1029 0810 3+ 5CV20 A143 40 170402 0755 1029 0810 3+ 5QD22 A143 40 170402 0755 1029 0810 3+ 5HO23 A143 40 170402 1027 1111 1044 2 5AA24 A141 40 170402 1042 1140 1100 2+ 5HO23 A131 40 170402 1042 1135 1058 2+ 5QD22 A143 40 170402 1042 1135 1058 2+ 5CV20 A143 40 170402 1042 1135 1058 2+ 5HO23 A143 40 170402 1044 1140 1057 2+ 2SY46 A136 40 170402 1053 1120 1058 1+ 4HO23 A118 40 170402 1253 1359 1301 2+ 5WU22 A96 40 170402 1253 1414 1259 2+ 5AA24 A97 40 170402 1254 1428 1302 3 5HO23 A131 40 170402 1255 1459D1259 3 5CV20 A119 40 170402 1255 1459D1300 3 5QD22 A119 40 170402 1255 1458D1259 3 5BZ20 A119 40 170402 1255 1358 1301 2+ 5SY46 A131 40 170402 1255 1440 1257 3 3QD22 A136 40 170402 1255 1440 1257 3 3SY46 A136 40 170402 1255 1333 1301 2 5PM21 A141 40 170402 1255 1455 1300 3 5HO23 A142 40 170402 1255 1455 1310 3 5QD22 A142 40 170402 1255 1412 1303 2+ 4AA24 A146 40 170402 1256 1457D1309 3 5CV20 A143 40 170402 1256 1457D1309 3 5QD22 A143 40 170402 1256 1457D1309 3 5HO23 A143 40 170402 1257 1420 1258 2+ 5HO23 A118 40 170402 1443 1514 1452 1+ 4AA24 A141 40 170402 1456 1532 1510 2 4SY46 A131 40 170402 1456 1542 1510 2+ 4AA24 A146 40 170402 1456 1553 1508 2+ 5AA24 A97 40 170402 1457 1545 1507 2+ 4HO23 A118 40 170402 1457 1528 1509 1+ 4HO23 A131 40 170402 1457 1537 1510 2 5LK25 A141 40 170402 1457 1545 1508 2+ 5CV20 A143 40 170402 1457 1545 1508 2+ 5QD22 A143 40 170402 1457 1545 1508 2+ 5HO23 A143 40 170402 1458 1622D1507 2+ 2SY46 A136 40 170402 1458 1622D1507 2+ 2QD22 A136 40 170402 1459E1623D1508 1 5QD22 A119 40 170402 1459E1624D1508 1 5CV20 A119 40 170402 1558E1615U1508 1- 5BZ20 A119 40 170402 1618 1656 1631 2 4AA24 A146 40 170402 1619 1640 1630 1 4WU22 A96 40 170402 1619 1655 1628 2 5AA24 A97 40 170402 1621 1659 1631 2 5LK25 A141 40 170402 1622 1642 1627 1 4HO23 A131 40 170402 1622 1646 1626 1 1QD22 A136 40 170402 1622 1638U1626 1- 1SY46 A136 40 170402 1623 1700U1627 2 4HO23 A118 40 170402 1623E1651 1627 1+ 5QD22 A119 40 170402 1624E1650 1626 1+ 4CV20 A119 40 170402 1624 1659 1647 2 5ML25 A147 40 170402 1811 2019 1836 3+ 5LK25 A141 40 170402 1814 1839 1828 1 5AA24 A97 40 170402 1820 1917D1832 2+ 4AA24 A118 40 170402 1820 2020 1821 3 3PM21 A138 40 170402 1820 2021 1835 3 4AA24 A146 40 170402 1821 2026 1905 3 5ML25 A147 40 170402 1822 2013 1834 3 5PM21 A141 40 170402 1828 1950 1840 2+ 5ML25 A141 40 170402 2022 2116 2035 2+ 5LK25 A141 40 170402 2023 2108 2033 2 5AA24 A141 40 170402 2025 2105 2026 2 2PM21 A138 40 170402 2025 2139 2049 2+ 5ML25 A147 40 170402 2025 2106 2031 2 5AA24 A97 40 170402 2029 2057 2033 1+ 5PM21 A141 40 170402 2029 2108 2035 2 4AA24 A146 40 170402 2030 2057D2032 1+ 4AA24 A118 40 170402 2030 2057D2032 1+ 4AA24 A118 40 170402 2031 2105 2035 2 5ML25 A141 40 170402 2103 2141 2110 2 5WC20 A122 40 170402 2105 2120 2110 1- 1-PM21 A138 40 170403 0059 0130 0107 1+ 5PM21 A141 40 170403 0455 0513 0505 1- 4SY46 A131 40 170403 0456 0511 0504 1- 4SY46 A131 40 170403 0456 0515 0504 1 4HO23 A131 40 170403 0504 0535 0517 1+ 4HO23 A131 40 170403 0512 0529 0520 1- 4SY46 A131 40 170403 0619 0632 0623 1- 4SY46 A131 40 170403 0620 0627 0623 1- 4HO23 A131 40 170403 0632 0713 0652 2 4SY46 A131 40 170403 0633 0714 0652 2 4HO23 A131 40 170403 0636 0709 0642 2 2QD22 A136 40 170403 0636 0709 0642 2 2SY46 A136 40 170403 0810 0853 0820 2 5HO23 A131 40 170403 0810 1000 0820 3 5QD22 A142 40 170403 0810 1000 0820 3 5HO23 A142 40 170403 0811 0849 0815 2 5BZ20 A119 40 170403 0811 0847 0815 2 5CV20 A119 40 170403 0811 0848 0815 2 5QD22 A119 40 170403 0811 0850 0818 2 5SY46 A131 40 170403 0811 0852 0815 2 2SY46 A136 40 170403 0811 0852 0815 2 2QD22 A136 40 170403 0811 0855 0821 2 5QD22 A143 40 170403 0811 0855 0821 2 5CV20 A143 40 170403 0811 0855 0821 2 5HO23 A143 40 170403 0812 0855 0815 2 5HO23 A118 40 170403 0812 0909 0820 2+ 1WC20 A149 40 170403 0855 0909 0859 1- 5HO23 A131 40 170403 0910 0949 0919 2 5HO23 A131 40 170403 0913 0945 0919 1+ 4HO23 A143 40 170403 0913 0945 0919 1+ 4QD22 A143 40 170403 0915 0950 0919 2 2QD22 A136 40 170403 0915 0950 0919 2 2SY46 A136 40 170403 0917 0950 0919 2 2HO23 A118 40 170403 1004 1053 1032 2+ 5HO23 A131 40 170403 1016 1108D1036 2+ 4HO23 A143 40 170403 1016 1108D1036 2+ 4QD22 A143 40 170403 1053 1107 1056 1- 3HO23 A131 40 170403 1108 1141 1115 2 5HO23 A131 40 170403 1108 1133 1113 1 5SY46 A131 40 170403 1108 1146 1116 2 4HO23 A143 40 170403 1108 1146 1116 2 4QD22 A143 40 170403 1109 1142D1113 2 3HO23 A118 40 170403 1109 1142D1114 2 5BZ20 A119 40 170403 1109 1141 1114 1+ 1SY46 A136 40 170403 1109 1141 1114 1+ 1QD22 A136 40 170403 1110 1142 1114 1+ 5QD22 A119 40 170403 1140 1203 1144 1 5HO23 A131 40 170403 1142E1205 1144 1 4BZ20 A119 40 170403 1203 1217 1209 1- 4HO23 A131 40 170403 1216 1229 1220 1- 3SY46 A131 40 170403 1218 1242 1220 1 3HO23 A118 40 170403 1218 1302 1221 2 4BZ20 A119 40 170403 1218 1234 1221 1- 5HO23 A131 40 170403 1218 1245 1223 1+ 4QD22 A143 40 170403 1219 1302 1221 2 4QD22 A119 40 170403 1302 1316 1306 1- 5SY46 A131 40 170403 1302 1319 1306 1- 5HO23 A131 40 170403 1303 1319D1307 1- 4BZ20 A119 40 170403 1303 1320D1307 1- 4QD22 A143 40 170403 1304 1319D1307 1- 4QD22 A119 40 170403 1305 1315 1309 1- 3HO23 A118 40 170403 1319E1421D1324 2+ 5BZ20 A119 40 170403 1319E1421D1325 2+ 5QD22 A119 40 170403 1319 1421D1324 2+ 2QD22 A136 40 170403 1319 1421D1324 2+ 2SY46 A136 40 170403 1319 1350 1326 1+ 4WU22 A96 40 170403 1320 1352 1324 1+ 5HO23 A131 40 170403 1320 1422D1325 2+ 5QD22 A143 40 170403 1320 1422D1325 2+ 5HO23 A143 40 170403 1321 1353 1325 1+ 5HO23 A118 40 170403 1322 1332 1324 1- 5PM21 A141 40 170403 1331 1340 1333 1- 1WC20 A149 40 170403 1332 1356 1342 1 4AA24 A97 40 170403 1420 1530 1435 2+ 2+PM21 A138 40 170403 1420 1520 1425 2+ 5QD22 A142 40 170403 1420 1520 1425 2+ 5HO23 A142 40 170403 1421E1726 1427 3+ 5QD22 A119 40 170403 1421E1745 1427 3+ 5BZ20 A119 40 170403 1421 1516 1429 2+ 5HO23 A131 40 170403 1421 1532 1424 2+ 2QD22 A136 40 170403 1421 1532 1424 2+ 2SY46 A136 40 170403 1421 1527 1427 2+ 5WU22 A96 40 170403 1422 1515 1425 2+ 5HO23 A118 40 170403 1422 1452 1427 1+ 5SY46 A131 40 170403 1422 1528 1436 2+ 5QD22 A143 40 170403 1422 1606 1438 3 5HO23 A143 40 170403 1422 1511 1428 2+ 5CV20 A143 40 170403 1423 1512 1429 2+ 5PM21 A141 40 170403 1424 1454 1428 1+ 5ML25 A141 40 170403 1429 1514 1444 2 5ML25 A147 40 170403 1656 1714 1701 1 4AA24 A97 40 170403 1905 1921 1912 1- 4PM21 A141 40 170403 1906 1929 1913 1 5LK25 A141 40 170403 1918 1931 1925 1- 3AA24 A97 40 170403 2011 2042 2015 1+ 5LK25 A141 40 170403 2011 2037 2015 1+ 5PM21 A141 40 170403 2015 2120 2017 2+ 2+PM21 A138 40 170403 2015 2052 2027 2 5ML25 A147 40 170403 2131 2146 2136 1- 3AA24 A97 40 170404 0657 0755 0712 2+ 2+WC20 A134 40 170404 0704 0726 0712 1 5BZ20 A119 40 170404 0704 0725 0712 1 5QD22 A119 40 170404 0704 0758 0713 2+ 5SY46 A131 40 170404 0705 0725 0708 1 4BZ20 A118 40 170404 0705 0725 0708 1 4BZ20 A118 40 170404 0705 0727 0711 1 5CV20 A119 40 170404 0705 0732 0712 1+ 5WC20 A122 40 170404 0705 0839 0712 3 3QD22 A136 40 170404 0705 0839 0712 3 3SY46 A136 40 170404 0947 1044 0956 2+ 4HO23 A143 40 170404 0948 1013 0952 1 5BZ20 A119 40 170404 0948 1027 0953 2 5HO23 A131 40 170404 0948 1016 0954 1+ 1SY46 A136 40 170404 0949 1015 0951 1+ 3HO23 A118 40 170404 0949 1013 0952 1 3CV20 A119 40 170404 1122 1201 1148 1+ 3BZ20 A119 40 170404 1208 1259 1220 2+ 4HO23 A143 40 170404 1213 1237 1216 1 5HO23 A131 40 170404 1214 1332D1217 2+ 5BZ20 A119 40 170404 1214 1225 1217 1- 3SY46 A131 40 170404 1214 1247 1217 2 2SY46 A136 40 170404 1215 1255 1216 2 3HO23 A118 40 170404 1215 1302 1217 2+ 4CV20 A119 40 170404 1331 1440 1344 2+ 5HO23 A143 40 170404 1332 1450 1343 2+ 3CV20 A119 40 170404 1332E1544 1343 3+ 5BZ20 A119 40 170404 1332 1417 1343 2 5HO23 A131 40 170404 1333 1408 1343 2 5SY46 A131 40 170404 1334 1445 1342 2+ 4HO23 A118 40 170404 1335 1421 1343 2+ 2SY46 A136 40 170404 1335 1440 1340 2+ 5HO23 A142 40 170404 1335 1440 1340 2+ 5QD22 A142 40 170404 1335 1359 1344 1 4AA24 A146 40 170404 1659 1707 1702 1- 4AA24 A146 40 170404 1945 2022 1957 2 5ML25 A147 40 170404 2336 0027 2346 2+ 2WC20 A134 40 170404 2340 2400 2345 1 1PM21 A138 40 170404 2341 0001 2342 1 5WC20 A122 40 170405 0929 0955 0932 1+ 3HO23 A118 40 170405 0933 0957 0938 1 5HO23 A131 40 170405 0934 0953 0938 1 5BZ20 A119 40 170405 0934 0952 0938 1- 4QD22 A143 40 170405 0934 0952 0938 1- 3HO23 A143 40 170405 0935 0956 0937 1 1QD22 A136 40 170406 0008 0016 0013 1- 1WC20 A134 40 170406 1018 1048 1027 1+ 5HO23 A131 40 170406 1021 1040 1027 1 1QD22 A136 40 170406 1021 1040 1027 1 1SY46 A136 40 170406 1022 1050 1027 1+ 2HO23 A118 40 170406 1202 1323 1212 2+ 5HO23 A143 40 170406 1202 1323 1212 2+ 5QD22 A143 40 170406 1203 1345 1207 3 5HO23 A118 40 170406 1203 1302 1212 2+ 5SY46 A131 40 170406 1203 1303 1212 2+ 5HO23 A131 40 170406 1203 1330 1209 3 3SY46 A136 40 170406 1203 1330 1209 3 3QD22 A136 40 170406 1204 1356 1210 3 5QD22 A119 40 170406 1204 1230 1214 1+ 4AA24 A146 40 170406 1204 1241 1212 2 5WU22 A96 40 170406 1204 1226 1210 1 4AA24 A97 40 170406 1205 1213 1208 1- 3WC20 A149 40 170406 1205 1213 1208 1- 3WC20 A149 40 170406 1654 1717 1715 1 5ML25 A147 40 170407 0001 0059 0025 2+ 5WC20 A122 40 170407 0017 0104 0028 2+ 2WC20 A134 40 170407 0850 0938 0857 2+ 5BZ20 A119 40 170407 0850 0925 0900 2 2SY46 A136 40 170407 0850 0925 0900 2 2QD22 A136 40 170407 0851 0910 0900 1 3SY46 A131 40 170407 0853 0925 0854 1+ 1HO23 A118 40 170407 0853 0916 0858 1 5HO23 A131 40 170407 1946 2014 1949 1+ 5AA24 A141 40 170407 1946 2015 1950 1+ 5PM21 A141 40 170407 1946 2026 1950 2 5LK25 A141 40 170407 1946 2020 1951 2 4AA24 A146 40 170407 2000 2013 2004 1- 5ML25 A147 40 170408 0255 0433 0310 3 3WC20 A134 40 170408 0900 0945 0907 2 5HO23 A131 40 170408 0902 0941 0907 2 2QD22 A136 40 170408 0902 0941 0907 2 2SY46 A136 40 170408 0903 1000 0905 2+ 1HO23 A118 40 170417 0245 0348 0247 2+ 5WC20 A122 40 170417 0716 0750 0721 2 5WC20 A122 40 170418 0930 1030 0935 2+ 5QD22 A142 40 170418 0930 1030 0935 2+ 5HO23 A142 40 170418 0935 1028 0950 2+ 4CV20 A143 40 170418 0935 1046 0950 2+ 5HO23 A143 40 170418 0935 1046 0950 2+ 5QD22 A143 40 170418 0936 1100 0942 2+ 5QD22 A119 40 170418 0936 1054 0942 2+ 5CV20 A119 40 170418 0936 1052 0941 2+ 5BZ20 A119 40 170418 0936 1005 0948 1+ 5SY46 A131 40 170418 0936 1021 0946 2 5HO23 A131 40 170418 0936 1031 0941 2+ 2QD22 A136 40 170418 0936 1031 0941 2+ 2SY46 A136 40 170418 0936 1008 0950 1+ 4WU22 A96 40 170418 0937 1050 0940 2+ 5HO23 A118 40 170418 0937 1050 0940 2+ 5HO23 A118 40 170418 1939 2101 2007 2+ 5LK25 A141 40 170418 1940 2230 2005 3+ 3PM21 A138 40 170418 1951 2029 2004 2 5AA24 A141 40 170418 1954 2033 2010 2 5PM21 A141 40 170421 0750 1000 0800 3+ 5HO23 A142 40 170423 1637 1711 1645 2 3LK25 A141 40 170423 1637 1711 1645 2 3LK25 A141 40 170425 2030 2057 2033 1+ 5ML25 A147 40 170425 2030 2057 2033 1+ 5ML25 A147 40 170426 1704 1830 1725 3 4LK25 A141 40 170428 1731 1911 1808 3 4LK25 A141 40 170407 1939 2023 1949 2 5AA24 A97 -- End Report --