SUDDEN IONOSPHERIC OF DISTURBANCES - SID Month: SEPTEMBER YEAR: 2019 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. NO EVENTS NO OBSERVATION 5. 0937 1335 12. 0757 1133 19. 0701 1417 26. 0848 1248 Evaluated by J.Klimes