S O L A R R A D I O E M I S S I O N SPECTRAL OBSERVATIONS STATION : ASTROPHYSIKALISCHES INSTITUT POTSDAM OBSERVATORIUM FUER SOLARE RADIOASTRONOMIE D - 14552 TREMSDORF (GERMANY) FREQUENCY RANGE : 40 - 800 MHz MONTH : APRIL YEAR :2003 -------------------------------------------------------------------------------------------------------------- 1 2 3 4 5 6 7 8 9 10 11 12 -------------------------------------------------------------------------------------------------------------- 030401 0439 1744 POTS 0528 U 1055 I S,N 2 200U 400 100-200 MHz no data 030401 POTS 0659.2 0703.5 III GG,N 2 200U 450 030401 POTS 0711.7 0713.6 III G 2 200U 420 030401 POTS 0718.1 0718.3 III G 1 200U 280 030401 POTS 0719.0 0719.3 III B 2 40X 85U 030401 POTS 0800.6 0801.0 III G 2 40X 85U 030401 POTS 1009 1055 III GG,N 2 40X 300 030401 POTS 1220.0 1220.5 III B 2 40X 240 030401 POTS 1224.0 1224.7 DCIM 2 230 340 030401 POTS 1226.6 1728 U I S,N 2 200U 370 030401 POTS 1237.7 1238.4 III G 2 200U 350 030401 POTS 1328.6 1329.2 DCIM 1 250 460 030401 POTS 1338 1409 III GG,N 2 40X 450 030401 POTS 1418.7 1419.9 III GG 2 200U 500 030401 POTS 1435.6 1456.7 III GG,N 2 200U 720 030401 POTS 1646.8 1649.0 III GG,N 2 200U 720 030402 0437 1744 POTS 0446 U 0947 I S,N 2 200U 330 100-200 MHz no data 030402 POTS 0738.1 0738.7 III GG 2 40X 300 030402 POTS 0755.1 0755.4 III B 2 40X 500 030402 POTS 0755.1 0755.3 DCIM 1 380 500 030402 POTS 0755.2 0755.4 III B 2 40X 340 030402 POTS 0817.7 0819.4 III G 2 40X 85 030402 POTS 0900.6 0900.9 III G 2 40X 60 030402 POTS 0923.0 0923.3 III B 1 40X 80 030402 POTS 1034.8 1038.4 III GG 2 40X 85U 030402 POTS 1035.1 1722 U I S,N 1 210 380 030402 POTS 1038.6 1038.7 DCIM 2 370 440 030402 POTS 1634.7 1636.4 III GG 1 200U 420 030402 POTS 1640.2 1640.6 III G 1 40X 280 030403 0436 1748 POTS 0451 U 1738 U I S,N 2 200U 420 100-200 MHz no data 030403 POTS 0925.9 0926.1 III B,U 1 40X 80 030403 POTS 1602.8 1604.0 III GG 2 40X 430 030403 POTS 1659.4 1659.6 III B 2 40X 250 030404 0435 1730 POTS 0443 U 1730 U I S,N,DC 2 200U 420 100-200 MHz no data 030404 POTS 0702.3 0705.2 III G 2 40X 80 030404 POTS 0841.6 0842.0 III G 2 40X 85U 030404 POTS 0944.5 0953.8 III GG,N 2 40X 85U 030404 POTS 1004.9 1007.5 III GG 2 40X 85U 030404 POTS 1210.8 1220.2 III GG,N 3 40X 85U 030404 POTS 1329.3 1330.9 III GG 2 40X 400 030404 POTS 1334.0 1345.0 III GG,N 2 40X 85U 030405 0433 1750 POTS 0707 0748 I S,N 1 200U 240 100-200 MHz no data 030405 POTS 0827.7 0834.8 III G,N 1 220 430 030405 POTS 0839 U 0904 I S,N 1 200U 350 030405 POTS 0901.8 0902.7 III G 1 40X 85U 030405 POTS 0939.4 0939.8 III G 2 40X 270 030405 POTS 1027.3 1027.8 III G 1 200U 330 030405 POTS 1229.8 1230.2 III G 2 40X 85U 030405 POTS 1256 1511 I S,N 1 200U 340 030405 POTS 1301.9 1302.2 III G 2 40X 85U 030405 POTS 1334.0 1334.4 III G 2 40X 800X 030405 POTS 1509.5 1511.1 III G 1 40X 80 030405 POTS 1534.8 1539.2 DCIM 1 210 450 030405 POTS 1634 1652 I S,N 1 200U 270 030406 0431 1752 POTS 0523 U 1419 I S,N 1 200U 400 100-200 MHz no data 030406 POTS 0801 0810 DCIM 2 210 460 030406 POTS 1124 1220 U I S,N 2 50 85U 030406 POTS 1200.3 1200.7 III B 1 40X 85U 030406 POTS 1223 1250 III G,N 1 40X 85U 030406 POTS 1506 1521 I S,N 1 250 400 030407 0430 1754 POTS 0629 1113 I S,N 1 200U 280 100-200 MHz no data 030407 POTS 0826.6 0827.4 III GG 2 200U 440 030407 POTS 0849.2 0849.7 III B 2 50 85U 030407 POTS 0901.9 0902.1 III B 1 40X 65 030407 POTS 1042.6 1046.1 III GG 2 200U 750 030407 POTS 1103.1 1104.0 DCIM 1 210 400 030407 POTS 1111.4 1111.8 III B 2 55 85U 030407 POTS 1143.4 1148.0 DCIM 2 200U 520 030407 POTS 1145.2 1145.4 III B 1 40X 55 030407 POTS 1150 1743 U I S,N 1 200U 300 030407 POTS 1248.3 1248.5 III B 1 40X 55 030407 POTS 1331.0 1332.5 DCIM U 1 200U 430 030407 POTS 1425.2 1426.6 III GG 2 70 500 030407 POTS 1520.8 1521.1 DCIM 1 240 400 030408 0428 1755 POTS 0428 E 1740 U I S,N,DC 2 200U 400 100-200 MHz no data 030408 POTS 0905.0 0905.3 III B 1 40X 65 030408 POTS 0958.1 1000.6 DCIM 2 270 600 030408 POTS 1005.5 1006.4 DCIM 1 280 460 030408 POTS 1135.3 1135.5 III B 1 40X 60 030408 POTS 1139.3 1140.9 DCIM 2 220 800X 030408 POTS 1220.9 1223.5 DCIM 2 200U 800X 030408 POTS 1338.2 1338.6 III B,U 2 40 70 030408 POTS 1350.3 1350.6 III B 1 40X 70 030408 POTS 1430.9 1431.2 III B,U 2 55 85U 030409 0427 1754 POTS 0436 U 1740 U I S,N,DC 2 200U 350 100-200 MHz no data 030409 POTS 0927.0 0931.2 DCIM 2 300 800X 030409 POTS 0938.3 0938.5 III B,RS 2 42 55 030409 POTS 1135.4 1135.7 III B 2 40X 300 030409 POTS 1700.3 1703.9 III GG 2 40X 360 030410 0426 1757 POTS 0433 U 1742 U I S,N,DC 2 200U 390 100-200 MHz no data 030410 POTS 0750.2 0750.8 III G 2 40X 50 030410 POTS 0839.4 0847.5 III GG,N 2 40X 480 030410 POTS 0908.9 0909.2 DCIM 1 370 470 030410 POTS 0922.5 0922.7 III B 2 40X 85U 030410 POTS 0938.0 0941.1 III G,N 2 40X 600U 030410 POTS 1001.0 1001.7 III G 3 40X 440 030410 POTS 1001.5 1002.1 V B 3 40X 60 030410 POTS 1012.5 1012.7 III B 1 40X 240 030410 POTS 1051.7 1124.3 III GG,N,U 2 40X 85U 030410 POTS 1210.3 1210.5 III G 1 40X 60 030410 POTS 1221.3 1221.7 III B 1 40X 85U 030410 POTS 1340.0 1340.3 III B 1 40X 55 030410 POTS 1346.3 1346.6 DCIM 2 210 450 030410 POTS 1432.0 1446.3 III GG,N 2 40X 440 030410 POTS 1438.4 1448.6 DCIM 1 270 500 030411 0424 1759 POTS 0430 U 1746 U I S,N,DC 2 200U 410 100-200 MHz no data 030411 POTS 0437.9 0438.3 III G 2 40X 300 030411 POTS 0536.8 0537.9 III G 2 40X 400U 030411 POTS 0709.7 0712.1 III GG 3 40X 800X 030411 POTS 0710.2 0710.8 V B 3 40X 55 030411 POTS 0728.0 0728.9 DCIM RS 2 200U 800X 030411 POTS 0732.5 0745.2 III G,N 3 40X 85U 030411 POTS 0806.4 0806.6 III B 2 40X 540 030411 POTS 0818.8 0844.9 III GG,N 2 40X 620 030411 POTS 0907.4 0921.6 III GG,N 3 40X 800X 030411 POTS 0919.1 0920.1 V G 3 40X 60 030411 POTS 0942.1 0944.2 III G 3 40X 550 030411 POTS 0950.2 0950.5 III B 1 40X 70 030411 POTS 1016.3 1016.7 III B 1 40X 55 030411 POTS 1030.7 1031.0 III B 1 40X 55 030411 POTS 1059.8 1101.7 III G 2 40X 320 030411 POTS 1125.3 1125.9 III GG 3 40X 420 030411 POTS 1237.0 1237.4 III B 2 40X 85U 030411 POTS 1245.0 1256.0 III G,N 2 40X 85U 030411 POTS 1309.3 1312.2 III G,N 2 40X 85U 030411 POTS 1337.2 1338.5 III GG 2 40X 280 030411 POTS 1354.7 1355.1 III G 3 40X 240 030411 POTS 1401.6 1402.3 III G 2 40X 320 030411 POTS 1504.0 1514.2 III GG,N 2 40X 800X 030411 POTS 1607.0 1607.6 III G 2 40X 330 030412 0422 1801 POTS 0432 U 1745 U I S,N,DC 2 200U 420 100-200 MHz no data 030412 POTS 0454.3 0455.4 DCIM 2 200 500 030412 POTS 0712.1 0720.3 III G,N 3 40X 650 030412 POTS 0736.8 0746.3 III G,N 2 40X 420 030412 POTS 0758.4 0810.8 III GG,N 3 40X 650 030412 POTS 0835.8 0836.3 III G 1 40X 370 030412 POTS 0850.3 0854.3 III GG 3 40X 500 030412 POTS 0856.9 0857.5 DCIM 2 250 580 030412 POTS 0901.4 0903.8 III GG 3 40X 800X 030412 POTS 0916.8 0917.1 III B 2 40X 270 030412 POTS 0923.2 0923.4 DCIM 2 230 500 030412 POTS 0929.1 0930.3 III GG 2 40X 430 030412 POTS 0950.5 0951.9 III G 2 40X 440 030412 POTS 1003.5 1003.8 III B 2 40X 270 030412 POTS 1016.7 1019.6 III G,U 2 40X 270 030412 POTS 1026.8 1027.0 III B,U 1 40X 60 030412 POTS 1030.2 1030.5 DCIM 2 200 530 030412 POTS 1039.6 1040.6 III G 2 40X 85U 030412 POTS 1059.4 1100.0 III B 2 40X 85U 030412 POTS 1109.4 1111.5 III G 2 40X 280 030412 POTS 1121.5 1130.0 III GG,N 3 40X 560 030412 POTS 1155.0 1203.8 III G,U 2 40X 280 030412 POTS 1217.2 1218.4 III GG 2 40X 280 030412 POTS 1322.3 1331.7 III GG 2 40X 800X 030412 POTS 1349.9 1354.7 III G 2 40X 720 030412 POTS 1431.5 1432.2 III G 3 40X 80 030412 POTS 1445.2 1445.6 III B 2 40X 80 030412 POTS 1533.4 1535.7 DCIM 2 200U 420 030412 POTS 1621.1 1621.9 III G 2 40X 370 030412 POTS 1637.6 1643.1 III GG 2 40X 620 030413 0421 1802 POTS 0429.8 0430.2 DCIM 2 200U 560 100-200 MHz no data 030413 POTS 0445 U 0630 U I S,N 1 200U 340 030413 POTS 0447.6 0449.2 UNCLF 2 200U 370 030413 POTS 0711 0717 I S,N 1 200U 240 030413 POTS 0806.0 0806.8 III G 2 40X 85U 030413 POTS 0847.2 0900.1 III GG 2 40X 800X 030413 POTS 0912.7 0913.1 III G 1 40X 240 030413 POTS 1003 1015 I S,N 1 200U 300 030413 POTS 1229.7 1230.5 III G 1 200U 300 030413 POTS 1234.0 1234.7 I S,N 1 200U 260 030413 POTS 1234.9 1235.3 III G 2 40X 70 030413 POTS 1238.3 1240.2 III GG,RS 1 200U 260 030413 POTS 1311.1 1311.3 III B 1 50 80 030413 POTS 1439.1 1443.7 III GG 3 40X 600 030413 POTS 1442.1 1443.8 V G 3 40X 55 030413 POTS 1449.8 1450.1 III G 2 40X 380 030413 POTS 1602 U 1716 U I S,N 1 200U 350 030414 0420 1804 POTS 0611.8 0616.9 III G 2 40X 380 100-200 MHz no data 030414 POTS 0709.1 0711.2 I S 1 220 270 030414 POTS 0748 1213 I S,N 1 210 320 030414 POTS 0818.8 0821.5 III G 2 40X 280 030414 POTS 0955.0 0955.3 III B 1 40X 55 030414 POTS 1211.0 1211.3 III B 1 40X 55 030414 POTS 1224.3 1227.6 III G,N 2 40X 85U 030414 POTS 1239.4 1239.6 III B 2 40X 270 030414 POTS 1349 1355 I S 1 220 300 030414 POTS 1423 1432 I S 1 240 320 030415 0418 1805 POTS 1348.1 1354.1 III GG 2 40X 85U 100-200 MHz no data 030415 POTS 1502.4 1502.9 I S 1 200U 330 030416 0417 1807 POTS no events recorded 100-200 MHz no data 030417 0415 1809 POTS 0616 0748 I S,N 1 200U 350 100-200 MHz no data 030417 POTS 0836.2 0839.6 III GG 2 40X 450 030417 POTS 0909.6 0910.4 III G 2 200U 320 030417 POTS 0945.0 0948.7 III G 1 200U 380 030417 POTS 1019.0 1022.3 III G 1 200U 280 030417 POTS 1024.7 1025.5 III G 2 40X 330 030417 POTS 1051.0 1051.2 III G 1 200U 370 030417 POTS 1055.3 1056.3 I DC 2 200U 280 030417 POTS 1114.9 1115.4 III G 1 200U 320 030417 POTS 1128.4 1130.1 III GG 2 200U 400 030417 POTS 1432.8 1433.0 III B 1 40X 70 030418 0415 1608 POTS 0540.9 0541.5 III G 1 200U 370 100-200 MHz no data 030419 0409 1813 POTS 0532 U 0554 U I S,N 1 200U 240 100-200 MHz no data 030419 POTS 0725.6 0726.5 III G 2 200U 330 030419 POTS 0727.4 0728.6 I S,N 1 200U 230 030419 POTS 0908 U 1009 U UNCLF 2 45 70 030419 POTS 1246.1 1246.4 III B 1 40X 50 030419 POTS 1255.9 1256.2 III G 1 200U 310 030419 POTS 1327.5 1329.2 DCIM 1 240 440 030419 POTS 1351.2 1351.6 III G 1 200U 260 030419 POTS 1440.7 1443.3 DCIM 2 230 800X 030419 POTS 1704.1 1704.4 DCIM 2 300 480 030420 0408 1814 POTS 0921.5 0922.5 DCIM 2 220 380 100-200 MHz no data 030420 POTS 0926.5 0926.6 UNCLF 2 210 220 030420 POTS 0939.7 0940.2 DCIM 2 340 720 030420 POTS 1055.8 1105.0 III G,N 2 40X 80 030420 POTS 1145.5 1147.2 DCIM 2 290 440 030420 POTS 1219.2 1219.4 III B 1 40X 55 030420 POTS 1306.8 1311.7 III G 1 40X 80 030421 0407 1817 POTS 0438.2 0441.6 III GG 2 200U 430 100-200 MHz no data 030421 POTS 0716 0725 I S,N 1 200U 270 030421 POTS 0717.8 0720.2 III GG 2 40X 330 030421 POTS 0746.7 0747.0 III G 1 40X 60 030421 POTS 0822.0 0822.2 III B 1 40X 55 030421 POTS 1104.0 1105.1 III G 2 40X 85U 030421 POTS 1208.0 1214.5 III G,RS,N 1 40X 80 030421 POTS 1217.7 1221.0 DCIM 2 200U 440 030421 POTS 1300.9 1302.5U III G 2 40X 270 030421 POTS 1302.5 1321 IV 3 40X 800X 030421 POTS 1304.5 1316 II 3 40X 500U 030421 POTS 1353.1 1355.6 I S,N 1 200U 230 030421 POTS 1531.7 1533.7 III G 1 40X 55 030421 POTS 1721.9 1722.5 DCIM 1 200U 400 030421 POTS 1753.5 1800.7 DCIM 2 200U 420 030422 0405 1819 POTS 0717.4 0734 II 3 40X 85U 100-200 MHz no data 030422 POTS 0717.4 0728 IV 3 40X 400U 030422 POTS 0857.4 0904.8 III GG 2 40X 260 030422 POTS 0911.8 0912.0 III G 2 40X 340 030422 POTS 0921.3 0924.2 III G,N 1 40X 80 030422 POTS 1032.9 1036.8 III G 2 40X 85U 030422 POTS 1100.2 1230.8 III GG,N 1 40X 80 030422 POTS 1111 1132 I S,N 1 200U 280 030422 POTS 1319.1 1336.8 III G,RS,N 2 40X 370 030422 POTS 1539.1 1540.7 III G 1 40X 80 030422 POTS 1552.7 1554.1 III G 1 40X 60 030422 POTS 1614.7 1616.4 III GG 3 40X 630 030423 0404 1820 POTS 0608.6 0611.3 III GG 2 40X 230 100-200 MHz no data 030423 POTS 0641.9 0646.1 III G,RS 1 40X 85U 030423 POTS 0733 0810 IV C 2 270 430 030423 POTS 0819.6 1047 U III GG,N 1 40X 60 030423 POTS 1052.3U 1059.4U III GG 3 40X 230 030423 POTS 1100 U 1454 III GG,N 2 40X 80 030423 POTS 1214 1335 IV C 2 270 500 030423 POTS 1329.7 1330.1 III G 2 200U 330 030423 POTS 1350 U 1725 U I S,N 2 200U 400 030423 POTS 1440.0 1411.6 III G 2 40X 550 030423 POTS 1545 1623 IV C 3 200U 800X 030423 POTS 1627.6 1628.5 III G 1 40X 70 030424 0402 1823 POTS 0402 E 0720 U I S,N,DC 2 200U 420 100-200 MHz no data 030424 POTS 0505.0 0505.4 III G 2 40X 670 030424 POTS 0514.5 0514.9 III B 2 40X 240 030424 POTS 0638.4 0638.7 III B 1 40X 65 030424 POTS 0720 U 1248 U I S,N,DC 3 40X 420 030424 POTS 0742 1248 U III GG,N 2 40X 300 030424 POTS 1248 1318 IV 3 40X 800X 030424 POTS 1249.0 1318 II 3 40X 440U 030424 POTS 1318 U 1726 U I S,N,DC 2 40X 420 030424 POTS 1325 U 1558 III GG,N 2 40X 80 030424 POTS 1726 U 1804 U I S,N 2 200U 400 030425 0400 1824 POTS 0400 E 0527.7U I S,N 2 200U 420 100-200 MHz no data 030425 POTS 0441.2 0445.4 III G 2 40X 500 030425 POTS 0501.8 0502.7 III G 2 40X 500 030425 POTS 0524.2 0525.7 III G 2 40X 280 030425 POTS 0527.7 0555 IV 2 40X 800X 030425 POTS 0529.9 0546.5 II 3 40X 85U 030425 POTS 0555 0731 U I S,N,C 2 200U 420 030425 POTS 0603 1651 III GG,N,RS 2 40X 85U 030425 POTS 0731 1705 U I S,N,DC,C 2 40X 420 030425 POTS 0927.2 0927.8 III G 3 40X 600 030425 POTS 1040.2 1040.5 DCIM 2 230 640 030425 POTS 1236.7 1244.4 DCIM 2 210 600 030425 POTS 1347.0 1348.3 DCIM 2 270 490 030425 POTS 1447.2 1448.7 DCIM 2 200U 450 030425 POTS 1705 U 1808 U I S,N 1 200U 380 030425 POTS 1713.1 1719.8 DCIM 2 220 550 030426 0358 1827 POTS 0358 E 0654 U I S,N 2 200U 400 100-200 MHz no data 030426 POTS 0542.8 0543.0 III B 1 40X 80 030426 POTS 0624.6 0630.4 III G,N 2 40X 85U 030426 POTS 0650.1 0650.4 DCIM 1 230 430 030426 POTS 0654 U 1222 U I S,N,DC 2 40X 400 030426 POTS 0723 1259 III GG,N 2 40X 85 030426 POTS 0756.8 0758.3 III GG 3 40X 800X 030425 POTS 0807.7U 0814 U II 3 40X 85U 030425 POTS 1126.0 1127.9 III GG 3 40X 240 030425 POTS 1126.4 1127.1 V G 3 40X 75 030425 POTS 1203.9 1207.3 III G 3 40X 400 030426 POTS 1222 U 1808 I S,N 2 200U 450 030426 POTS 1356.8 1357.6 III G 2 40X 320 030426 POTS 1420.4 1430.2 III G 3 40X 410 030426 POTS 1422.8 1424.1 V G 3 40X 80 030426 POTS 1440.8 1454.6 III GG,N 2 40X 350 030426 POTS 1447.5 1453.5 II UE 2 40X 80 030426 POTS 1525.9 1527.4 III G 2 40X 460 030426 POTS 1529.5 1530.0 III G 1 200U 380 030426 POTS 1534.9 1535.1 III B 1 40X 55 030426 POTS 1539.4 1541.9 III GG,RS 3 40X 600 030426 POTS 1544.6 1551 III GG,N 2 200U 360 030426 POTS 1558.4 1606.3 III GG 3 40X 630 030426 POTS 1620.8 1744 III GG,N 3 40X 520 030426 POTS 1754.8 1759.1 III GG,N 3 40X 670 030427 0356 1828 POTS 0356 E 1811 U I S,N,DC 2 200U 420 100-200 MHz no data 030427 POTS 0453.9 0454.3 III B 2 40X 80 030427 POTS 0538.2 0541.0 III G 2 40X 550 030427 POTS 0645.0 0645.8 DCIM 2 330 640 030427 POTS 0737.6 0741.7 III GG 3 40X 800X 030427 POTS 0739.2 0741.0 V G 3 40X 70 030427 POTS 0745.6 0746.0 III G 2 40X 260 030427 POTS 0839.0 0839.2 III B 1 40X 80 030427 POTS 0911.5 0913.1 III G 1 40X 85U 030427 POTS 1052.1 1052.3 III B 1 40X 85U 030427 POTS 1110.1 1110.4 III G 1 40X 85U 030427 POTS 1305.7 1306.1 III G 2 40X 540 030427 POTS 1529.7 1531.3 III GG 3 40X 800X 030427 POTS 1532.3 1535.7 II UE 3 200U 510 030427 POTS 1537.6 1538.8 III G 1 40X 80 030428 0354 1830 POTS 0354 E 1810 U I S,N,DC 2 200U 420 100-200 MHz no data 030428 POTS 0438.7 0501.1 III GG,N 2 200U 800X 030429 0352 1832 POTS 0352 E 1813 U I S,N,DC 2 200U 410 100-200 MHz no data 030429 POTS 0741 1221 III GG,N 2 40X 80 030429 POTS 1230.2 1232.5 III G 2 40X 270 030429 POTS 1615.2 1618.2 DCIM 2 250 800X 030430 0350 1834 POTS 0355 U 1813 U I S,N 1 200U 420 100-200 MHz no data 030430 POTS 0956.6 0956.9 III B 1 40X 85U 030430 POTS 1044.5 1048.5 III G 2 40X 330 030430 POTS 1137.7 1138.2 DCIM 2 270 630 030430 POTS 1146.6 1146.8 DCIM 1 280 460 030430 POTS 1249.9 1251.0 III GG 3 40X 480 030430 POTS 1335.0 1335.3 III G 2 40X 330 030430 POTS 1448.1 1449.9 DCIM 2 290 800X 030430 POTS 1517.6 1518.0 III G 2 40X 480 DESCRIPTION : 1 - Date (yymmdd) EVENT REMARKS : B - Single burst 2 - Start time of observation C - Underlying continuum 3 - End time of observation (particularly with TypeI) 4 - Station DC - Drifting chains (Type I) 5 - Event start time DP - Drifting pairs (Type I) 7 - Spectral class F - Fundamental emission (Type II) 8 - Associated spectral class remarks FS - Fine structure (Type IV) 9 - Intensity (1-3) G - Small group of bursts (<10) 10 - Low frequency (MHz) of the event GG - Large group of bursts (>10) 11 - Upper frequency (MHz) of the event H - Herringbone (Type II) 12 - Remarks N - Intermittent activity in this eriod RS - Reverse drifting burst FREQUENCY S - Storm in the sense of intern QUALIFIERS : X - Extends beyond instrument range but apparently connected act U - Uncertain frequency SH - Secondary harmonic emission U - U-shaped burst of type III UE - Uncertain emission (type II) W - Weak