This directory contains two files with original measurements of
 atmospheric UBV extinction coefficients obtained at the Skalnate Pleso
 and Brno observatories in 1962-95.

 The material was used for the paper:
 Mikulasek et al., 2000, "Atmospheric extinction at the Brno and Skalnate
 Pleso Observatories. I. Instrumentation, observations and review of data",
 Contr. Astron. Obs. Skalnate Pleso, Vol. XXX, p. 89 - 98.

 The file Databrno contains data from the Brno Observatory, the file
 Dataskpl contains data from the Skalnate Pleso observatory.

 Format used:

 Time,k(V),k(B),k(U).

 If the extinction in one or two colors was not measured in the particular
 night, a value 9E+0 is adopted.

 Explanation:
 First row in the file Databrno:

 6.2575E+1,9E+0,4.8E-1,9E+0

 means:

 Time = 1962.575, k(V) =  Not measured, k(B) = 0.48, k(U) = Not measured.