[evlatests] Integer zeros slipping through?

Michael Rupen mrupen at nrao.edu
Thu Apr 28 11:53:17 EDT 2011


Are these zeroes only in the last record (integration) of a scan?
If so this may be an intentional behavior, to handle cases where
the scan is not an (exact) integral number of dumps.

              Michael

>    In continuing to troll through the 3C273 data taken a couple weeks
> back, I find a curious problem that I thought had been dealt with long
> ago.
>
>    One some of the scans, there are what appear to be integer zeros, on
> some baselines.  It's hard to prove these are pure integer zeros -- I
> can only state for sure that these numbers are much less than 1e-20.
>    The unique feature of these zeros is that they are all at the end of
> the scans.  None in the middle, and none at the start.
>
>    I had thought that the BDFin program automatically stripped out
> integer zeros.  Is this no longer so?  Or perhaps my 'integer zeros' are
> not quite integer zero?
>
>
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