SUDDEN  IONOSPHERIC   OF  DISTURBANCES  - SID

Month: JANUARY    YEAR: 2023      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.
   8    1204    1447    1256     3     4     163      5
   9    0843    0930    0910     2     4      47      1
        1324    1430    1345     1     2      66      5
  10    0853    0923D   0913     1     3      30D     2b
        0923    1009    0945     1     3      46      2a
  11    0852    0910D   0907     1     2      18D     1
  13    1013    1031    1016     1     3      18      1
  15    1426    1458    1432     1     2      32      5
  18    1029    1130    1038     2     4      61      1
  19    1008    1055    1014     1     3      47      1
  22    1048    1111    1051     1     2      23      1
        1144    1307    1228U    1     2      83      3

        NO OBSERVATION    5. 0800 1110    12. 0950 1205
                         19. 0930 1000    24. 1150 2400
                   25. - 31. 0000 2400

        Evaluated by J.Klimes