Content-type: text/html Manpage of bldelay

bldelay

Section: User Commands (1)
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NAME

bldelay - Derive atmospheric delay differences from baseline phases.  

PERSON RESPONSIBLE

jwl  

CATEGORIES

uv calibration  

DESCRIPTION

BLDELAY is a Miriad program that reads baseline phases and derives estimates for the atmospheric delay. The visibility data should have been calibrated to give zero phases in all windows and channels at the start of the data. There is no averaging done. If this is required it should be done in another Miriad task.  

PARAMETERS

vis
The input visibility file. No default.
out
The file containing the derived delays.
options
The options are
    mean        (default) estimate the delay from the mean phase
                across the band divided by the mean frequency,
                and zero phase at zero frequency
    slope       estimate the delay from the slope across all the
                bands or channels
    track       track phases in time to resolve wraps
select
This selects the data to be processed, using the standard uvselect format. Default is all data.
line
Specify whether to use the wideband ("wide") or channel ("channel") data to derive the delays.
wraps
Number of 2*pi steps to search for the best delay fit. The default is 3 (to search +/- 3*pi)


 

Index

NAME
PERSON RESPONSIBLE
CATEGORIES
DESCRIPTION
PARAMETERS

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Time: 18:35:38 GMT, July 05, 2011