[daip] 2007-09-16_1201_AB1280.txt

[Michael Busch]

Data Analysts wrote:
> Hi Michael,
>
> I have some things for you to try.  It seems the online
> system is lying about channel separations, so AIPS thinks
> the bandwidths are different for the two IF's.  This has been happening
> for the last few days, maybe a week.  Anyway, your data
> was affected.
>
> So to fix the data, do the following (note from  Eric  Greisen):
>
> "The user should fix the channel separation 3 places: the image header
> with puthead, and the SU and FQ tables with TABPUT (carefully).  Then
> VBGLU might glue them back together.
>
> The user should watch for frequency wrong errors (phase inverted,
> channel separation negative) but that was an independent error and far
> less common."
>
> Cheers,
> Eric Greisen
>
> If you need any AIPS help, Eric can answer your questions.  He's at
> daip at nrao.edu.
Eric,

I'm afraid I don't understand the above instructions.  Does the AIPS 
documentation describe in detail what I need to do to follow them?  I 
have not used PUTHEAD, TABPUT, or VBGLU before.  Thanks.

Michael