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Basic Information on smasfreq
Task: smasfreq
Purpose: Fix the frequency labelling problem in SMA data
Categories: calibration
SMASFREQ re-labels frequencies for each of spectral windows
using the follwoing recipe:
sfreq(i) = sfreq(i) + 0.5*sdf(i) for i =1,2,5,6,9,10,13,14,17,18,21,22
sfreq(i) = sfreq(i) - 0.5*sdf(i) for i =3,4,7,8,11,12,15,16,19,20,23,24
sfreq(i) must be the original sky frequency from the raw SMA data;
sdf(i) must be the original frequency channel increment from the raw SMA
data.
The output contains the corrected sky frequency label and all other
data from the input file.
Key: vis
Name of input visibility file. No default
Key: out
Output file name. No default