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: http://www.atnf.csiro.au/computing/software/miriad/doc/odnh3.html
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Task: odnh3 Purpose: Ammonia analysis program Categories: map combination, map manipulation ODNH3 is a MIRIAD task that creates optical depth and rotational temperature maps from ammonia maps. Ammonia J,K=(1,1) emission has five hyperfine components, one main hyperfine component, two inner hyperfine components, and two outer hyperfine components. Odnh3 takes a main hyperfine component map and either an inner or outer hyperfine component map and combines the two maps to make a single main hyperfine component optical depth map. Odnh3 can also combine a J,K=(1,1) main hyperfine component map, a J,K=(2,2) main hyperfine component map, and a J,K=(1,1) main hyperfine component optical depth map to create a rotational temperature map. Any of the input maps can be masked to allow a signal-to-noise cutoff. Key: map1 Input map, main hyperfine component map of the J,K=(1,1) level. No default. Key: map2 Input map, depends on the option given (see "op" below). No default. Key: mapt Input map required for op=temp. mapt is the J,K=(1,1) main hyperfine component optical depth map. No default. Key: mask A mask expression using FORTRAN syntax. The optical depth or rotational temperature is only calculated at pixels where the mask is TRUE. Thus, this keyword can be used to enforce a signal-to-noise cutoff on the input maps. No default. Key: region Standard keyword region. See the help on region for more information. Key: op The odnh3 option used: taui: inner hyperfine component map of the J,K=(1,1) level. tauo: outer hyperfine component map of the J,K=(1,1) level. temp: main hyperfine component map of the J,K=(2,2) level. No default. Key: out Name of the output image. No default. Revision: 1.5, 2013/08/30 01:49:21 UTC