SUDDEN  IONOSPHERIC   OF  DISTURBANCES  - SID

Month: APRIL      YEAR: 2018      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. 0905 1341    12. 0855 1405
                         19. 0809 1035    26. 0825 0850

        Evaluated by J.Klimes