SUDDEN  IONOSPHERIC   OF  DISTURBANCES  - SID

Month: APRIL      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    4. 0943 1341    11. 0811 1120
                         18. 0810 1024    25. 0806 1300

        Evaluated by J.Klimes