SUDDEN  IONOSPHERIC   OF  DISTURBANCES  - SID

Month: MAY        YEAR: 2021     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.
  07    1855    1935    1905     1     4      40      5    P      
  08    1250    1354    1300     1     3      54      5    P
  09    1350    1455    1403     1     3      55      5    P 
  22    0615    0639    0624     1     3      24      5    P
        1709    1746    1714     1     3      37      5    P
  23    0917    0950    0929     1     3      33      5    P
        1103    1154    1110     1     4      51      5    P
  28    0955    1018    0959     1     4      23      5    P

        P = positive efect
  
        NO OBSERVATION    6. 0750 1320    13. 0805 1040
                         20. 0810 1320    27. 0810 1300

        Evaluated by J.Klimes