Vertical
  Summary
    Viewer
Class:
  All layer of:
    Wakkanai Kokubunji
    Yamagawa Okinawa
  All observatories:
    F layer E layer
    All frequency
Interval:
  15sec 30sec
  1min 5min
  15min
Date:
YYYYMMDD
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hhmmss
: :
Action: