SUDDEN IONOSPHERIC OF DISTURBANCES - SID Month: MARCH 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. 5 1108 1346D 1150 2 3 158D 5 P 1346 1504 1400 3 4 78 5 P 10 0901 1014 0924 2 3 73 5 P 14 0837 0916 0844 2 4 39 5 P 15 0812 0831 0818 1 3 19 5 P 1236 1416 1243 3 4 100 5 P 16 1236 1429 1315 1 3 113 5 P 20 0736 0807 0745 1 2 31 5 P 22 1223 1347 1242 2 4 84 5 P 23 0852 0916 0900 1 2 24 5 P 1051 1115 1058 1 2 24 5 P 1203 1232 1213 1 2 29 5 P 1354 1432 1400 1 2 38 5 P 24 0809 0844 0821 1 2 35 5 P 1238 1400 1306 1 2 82 5 P 28 0954 1042 1001 1 2 48 5 P 1117 1247 1129 3 4 90 5 P 29 0924 1115 0940 2 3 111 5 P 30 1103 1145 1107 1 3 42 5 P 1226 1318 1236 1 3 52 5 P 1728 1850 1740 3 4 82 5 P P pozitive efect NO OBSERVATION 17. 0805 1310 24. 1005 1200 31. 0925 1220 Evaluated by J.Klimes