[daip] PCCOR question

[Dayton Jones]

Hi.  I am working with a small interferometer at JPL that sends an LO 
signal to each antenna over a fiber optic cable.  Temperature changes 
in the cables cause changes in the LO phases, so we measure and record 
the round-trip phase variations for each cable.  My plan was to apply 
these phase corrections, suitably scaled, to the baseline phases in 
AIPS using tasks PCCOR and CLCAL.  The correlator output is currently  
written to a FITS file to which the cable phase data are added.  In 
AIPS the cable phases are contained in a PC table, with one pair of 
real and imaginary values per antenna per time interval.  However, I 
just found that PCCOR will not deal with data having a single IF, so 
I am not able to get the cable phase corrections into SN or CL tables 
to apply to the visibilities.  It is important that we correct the 
baseline phases because we need to use them to solve for an improved 
baseline vector.  Is there an alternative way to apply an external, 
time-dependent phase correction to data in AIPS?  Thank you for any 
suggestions you may have.  Cheers,
                                    Dayton Jones  (dj at sgra.jpl.nasa.gov)