DOT live SHABAR data

Below are the results of the measurements from the SHABAR at the Dutch Open Telescope. The first plot is the raw data from the SHABAR: a curve of the cross-covariance of the scintillation as function of the detector separation. The red line is the latest data, the gray lines are curves from past data (10, 20, ..., 100 seconds in the past) to visualise the changes in seeing.

The second plot is the inversion of this data to a Cn2 profile. The algorithm used is virtually identical to that described in ATST RPT-0014, however the fit algorithm runs only a limitted time to allow live display. Again, the red line is the inversion from the latest data, the gray lines are past inversions.

The third plot is the r0 value (derived from the Cn2 profile) as a function of time.

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Raw SHABAR data Inverted SHABAR data Derived Fried parameter Inverted data as function of time