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$uv$ table

In a $uv$ table, each line describe one and only one visibility. The number of lines of the table is thus the number of visibilities described in the table. Each column of the table stores a particular property of the visibilities, namely:

Line 1
U in meters;
Line 2
V in meters;
Line 3
Scan number;
Line 4
Observation date (integer CLASS/CLIC Day Number3.2);
Line 5
Time in seconds since 0:00 UT of above date;
Line 6
Number of the first antenna used to measure the visibility;
Line 7
Number of the second antenna used to measure the visibility;
Line 8
Real part for the first frequency channel;
Line 9
Imaginary part for the first frequency channel;
Line 10
Weight for the first frequency channel;
Lines 11-13
Same as column 8-10 but for the second frequency channel;
...
If a $uv$ table describes nvis visibility spectra composed of nchan frequency channels, the size of the table will thus be: nvis lines of 7+3*nchan columns.


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Gildas manager 2018-06-20