[daip] Re: Testing VLBA data calibration service (fwd)

[Eric Greisen]

Lorant Sjouwerman, NRAO writes:
 > Hi all,
 > 
 > I got a suggestion from Ed: to include an option to be able to display 
 > column 7 of the CL table (I guess one wants it both in LISTR /and/ SNPLT).
 > Can this be done?

    I have adeded IFR plotting to SNPLT.  The values in that column
(written by TECOR) affect the RL and LR calibrations only.  They do
not affect phase.  TECOR can also write ionospheric delay which will
affect phases.  SNPLT already plots those.

Eric Greisen


 > Loránt Sjouwerman - VLBA Scientific Services - lsjouwerman at aoc.nrao.edu
 > -----------------------------------------------------------------------
 > c/o NRAO Array Operations Center       Phone:  +1-505-835-7332
 >     P.O. Box 0 (1003 Lopezville Rd)    Switch: +1-505-835-7000
 >     Socorro NM 87801                   Fax:    +1-505-835-7027
 > 
 > ---------- Forwarded message ----------
 > Date: Mon, 01 Apr 2002 14:40:25 -0500
 > From: Ed Fomalont <efomalon at cv3.cv.nrao.edu>
 > To: "Lorant Sjouwerman, NRAO" <lsjouwer at zia.aoc.NRAO.EDU>
 > Subject: Re: Testing VLBA data calibration service
 > 
 > Hi Lorant,
 > 
 >     After a little more searching, I discovered that the phase correction
 > made in the CL table is not in the phase correction, but in the I.FAR.ROT
 > column of the CL table (column 7).  So, when you look at the data with the
 > CL table applied, the phases do change.  The switch in APARM(1) should be
 > one.  I am not sure what aparm 0 does.  You probably know all this, but I
 > was fooled.  It might be useful having LISTR, optype 'gain' include the
 > I.FAR.ROT column with dparm(1) = 15
 > 
 >     I'll do some more checking when I redo the phase referencing with and
 > without the ionosphere.
 > 
 >     Thanks,  Ed
 > 
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