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Character descriptor FILTCAT

If curves are available for the filters used, this holds the name of a MIDAS catalog file that points to individual table files, which in turn hold the transmission data.

The individual filter table files should give transmittance (column name TRANS) as a function of wavelength in nanometers (column name LAMBDA). Each filter's table file should contain a character descriptor named BAND that names the passband for which that filter is used.

If no filter curves are available, FILTCAT should contain only spaces.



Rein Warmels
Mon Jan 22 15:08:15 MET 1996