SABOCA zenith opacities as a function of time. For each entry in the output table, we provide three values for the zenith opacity:
The latter usually provides the best estimate of the true zenith opacity; but users are strongly encouraged to carefully and
critically check all these values and their variations during the time interval covering their science observations.
tau_sd, derived by reducing a Skydip scan with redssky(scannr).
tau_rm, computed from the precipitable water vapour (PWV) and an atmospheric model.
A linear combination of these two: tau_mean = (tau_sd + tau_rm)/2.0
Download all opacities (BoA format)
which is generated automatically using a pipeline reduction.
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