Combined MASS-DIMM instrument for atmospheric turbulence studies
arXiv:0709.2081 · doi:10.1111/j.1365-2966.2007.12467.x
Abstract
Several site-testing programs and observatories currently use combined MASS-DIMM instruments for monitoring parameters of optical turbulence. The instrument is described here. After a short recall of the measured quantities and operational principles, the optics and electronics of MASS-DIMM, interfacing to telescopes and detectors, and operation are covered in some detail. Particular attention is given to the correct measurement and control of instrumental parameters to ensure valid and well-calibrated data, to the data quality and filtering. Examples of MASS-DIMM data are given, followed by the list of present and future applications.
Accepted by MNRAS, 11 pages, 8 figures
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