SUDDEN IONOSPHERIC OF DISTURBANCES - SID Month: MAY YEAR: 2022 Observing Station: OBSERVATORY U P I C E CZECH REPUBLIC Transmitter coordinates: Receiver coordinates: Lat.: 63 51 1.31 N Lat.: 50 30 26.6 N Long.: 22 28 0.38 W Long.: 16 00 43.5 E Sea level: 416 m Frequency: 37.5 kHz Band pass: 308 Hz a 80 dB Chart speed: 3.4 cm/H Recorder time constant: 1 min Date Start End Max. Imp. Def. Dur. Type REMARKS UT UT UT SID min. 1 1100 1252 1118 1 2 112 5 3 0742 0841 0757 2 3 59 5 1322 1432 1325 2 4 70 1 4 0547 0618 0555 1 3 31 5 0816 0853D 0827 1 3 37D 5 0853 1008 0900 2 4 75 1 1613 1738 1635 1 3 85 5 5 1211E 1246 X 1 3 95D 5 1311 1408D 1321 2 3 57D 1 1408 1451 1415 2 4 43 1 6 1619 1739 1624 1 4 80 1 7 0604 0622 0607 1 2 18 5 8 0746 0800 0750 1 2 14 6 1225 1315 1233 1 3 50 1 10 0750 0824 0800 1 2 34 5 1256 1332D 1302 1 3 36D 5 1332 1354D 1349 1 3 22D 5 1354 1559 1356 2 4 125 1 11 0614 0659 0628 1 3 45 5 0929 1043 0952 1 3 74 2a 1320 1537D X 1 2 137D 3 1537 1642D 1549 1 4 65D 5 1642 1812 1651 2 4 90 1 13 0855 1042 1013 1 2 107 3 16 1007 1052 1017 1 3 45 5 1315 1511 1331 2 4 116 1 17 1023 1113 1031 1 3 50 5 1118 1229D 1147 1 4 71D 5 1229 1315 1238 1 4 46 1 1622 1714 1630 1 3 52 5 18 0710 0849 0720 1 2 99 3 1006 1112 1015 1 2 66 3 1549 1710 1551 1 2 81 3 19 0540 0700D X 1 2 80D 3 1509 1648 1520 2 3 99 1 20 0743 0856 0754 3 4 73 1 22 1421 1616 1433 1 2 115 5 23 1100 1332 1111 1 2 152 5 24 0813 0957 0926 1 2 104 3 1156 1305 1207 1 2 69 5 NO OBSERVATION 5. 0815 1210 12. 0700 1430 19. 0700 1450 26. 0840 1320 Evaluated by J.Klimes