[daip] Re: your phone message

Mark Reid reid at cfa.harvard.edu
Mon Nov 21 16:30:29 EST 2005


Leonia,

On Sun, 20 Nov 2005, Leonia Kogan wrote:

> May I say again the main point:
>  DEL directs to correct DELAY and
>  DERIVATIVE directs to correct RATE.
> DEL does not effect RATE; DERIVATIVE does not effect DELAY.
>

   I think I agree with everything you stated, but putting
some values in a CL table is not the final test.  The
proof of the entire calibration procedure is what matters.

   I expected that after applying the CL table corrections
that my data would be calibrated.  That is, they would show
little or no effect of the atmosphere or clock errors that
I was trying to fix.   This did not happen.  Instead,
after CLCOR and re-FRINGing (applying the new CL table), the
multi-band delays drifted in time.  They drifted in time in a manner
that suggested that the atmospheric rate (and the clock rate) had
not been removed.

Mark




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