SUDDEN  IONOSPHERIC   OF  DISTURBANCES  - SID

Month: SEPTEMBER  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.
  8     0915    0936    0923     1     2      21      5    P
        1254    1340    1302     1     2      46      5    P
        1420    1500    1436     1     2      40      5    P
 23     1525    1607    1535     1     3      42      5    P

        NO OBSERVATION   1.0000 2400    9.0700 1340   16.0840 1320
                        23.0740 1350   30.1000 1300

        P  pozitive efect

        Evaluated by J.Klimes