[daip] VLA archive data problem?

[Teddy Cheung]

Hi All, 

This data is from program: 
WARD.820306.C 
(yes, John Wardle's old experiment...but 20 years ago!...he does say that 
he was able to calibrate the data back then though)

I know for certain that Difmap will croak if the AN table information is
corrupted the way it is (from my experience with archival Merlin data).

Leonia, I tried PRTAB of the 'an' table and it gave the same information.

Any other suggestions?

Thanks,
Teddy


On Tue, 29 Jan 2002, Eric Greisen wrote:

> 
> I agree that this is odd - we can look a little more if we knew what
> data this actually was.
> 
> But a defective AN table only really matters if you were wanting to
> run UVFIX (do NOT do that with this table) or anything else that needs
> the antenna positions (I can't think of any off hand).  I forget when
> the AN information first was available at the time the data was
> written.  In the early years it was obtained from the monitor data
> base days after the observation and so was unreliable.
> 
> Eric
>