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Basic Information on uvdump
Purpose: Generate an output text file of information from a visibility dataset.
Categories: uv analysis
UVDUMP generates a text file containing information from a visibility
dataset. This information will usually be used as input to other
analysis outside Miriad.
For each data record selected, an line is produced in the output
text file. Each line can consist of several values.
The input UV dataset name. No default.
The name of the values to be written. Possible names are the names
of visibility variables (with no additional processing), or some
of the following special names given below. Note these names cannot
real Real part of a correlation.
imag Imaginary part of a correlation.
amp Amplitude of a correlation.
phase Phase of a correlation, in degrees.
flag Data flag. This is 1 for good data and zero for bad data.
variance Theoretical variance of the real/imag parts.
blno Baseline number in the form xx-yy (character string).
ant1 First antenna of the baseline.
ant2 Second antenna of the baseline.
polid Polarization identifier (character string).
dtime Offset time, as a fraction of a day, relative to the date of
tod Time-of-day, as a day fraction.
freq Frequency of each channel, in GHz.
uu U coordinate of the first channel after any frequency averaging
is performed. The units are in wavelengths.
vv V coordinate. See "uu" above.
ww W coordinate. See "uu" above.
Several names can be given, separated by commas.
This selects which channels to include. See the help on `line' for
more information. The default is to include all data.
This selects the data to be processed, using the standard uvselect
format. Default is all data.
Normal stokes keyword. The default is to list the unconverted
The list output file name. The default is the terminal.
This controls what is listed, and the verbosity. Several can be
given, separated by commas. Minimum match is used. Possible values
flagged Process flagged data only. By default only unflagged data
all Process all data. By default only unflagged data are processed.
nofqav Do not average the channels of each spectral to produce an average
value. Note averaging affects the output for values:
real,imag,amp,phase,flag,freq,variance,uu,vv,ww. Depending on
the "flagged" and "all" options, either just the good, bad or all
channels are used in the averaging.
unwrap Attempt to unwrap the phase (assumes consecutive data has the
space By default values are separated by a comma. This option causes the
values to be separated by a space instead.
The following control application of calibration corrections.
nocal Do not apply antenna gain calibration.
nopol Do not apply polarization leakage correction.
nopass Do not apply bandpass response correction.
Generated by email@example.com on 15 Feb 2012