[daip] SPLAT funniness
Eric Greisen
egreisen at NRAO.EDU
Fri Dec 29 15:26:29 EST 2000
Joseph Lazio writes:
> I'm running 31DEC00. I've been running the MNJ, and my version is
> current upto late November or early December (whenever access was shut
> down in preparation for the rollover).
BTW - the MNJ was shut down for only a couple of days. It can be
rerun so long as you now call it NEW. 31DEC01 may also be installed.
>
> I have a two-IF, P-band, single-source u-v data file. It is the
> output of FLGIT. If I run SPLAT on it---with BCHAN=1, ECHAN=0, BIF=1,
> and EIF=2---the visibility data in the second IF are clearly wrong.
> They are measured in kiloJanskeys, but the data in the first IF look
> reasonable (look like a resolved source with a flux density ~ 100
> Jy). If I SPLAT off the individual IFs, they look reasonable. If I
> set BCHAN=0, BIF=0, and EIF=0, the visibility data in both IFs look
> reasonable. If I set BIF=1, the visibility data are screwed up
> again.
>
Can you make the data set available - on an anonymous ftp
location at your site or (2nd choice) on out ftp.aoc.nrao.edu incoming
site? And can you show all the inputs - are you averaging in time,
channel? or why are you running splat?
Eric
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