[daip] problems with vlant

[Eric Greisen]

bob at physics.ucdavis.edu wrote:
> hi, i ran vlant by mistake on a file that shouldn't need it.
> much to my surprise vlant came back with inappropriate changes
> to baselines. below is the information. the changes it found occured about
> 8 months after the observations were taken.

VLANT looks at all changes to antenna locations entered due to baseline 
runs that FOLLOW the observing run.  If they affect antennas at stations 
that you used, they are assumed to be improvements on those station 
locations from the values used during your run and entries are made in 
the CL and AN tables accordingly.  It is correct that a baseline change 
AFTER you observed should be applied to your data.

Eric Greisen