data:NXdata
    time_of_flight = 1500.0 1502.0 1504.0 ...
    polar_angle = 15.0 15.6 16.2 ...
    some_other_angle = 0.0 0.0 2.0 ...
    data = 5 7 14 ...
      @axes = polar_angle:time_of_flight
      @signal = 1