[daip] Request for CLCOR enhancement

[Robert Mutel]

On Fri, May 30, 2008 at 11:24 AM, Leonia Kogan <lkogan at nrao.edu> wrote:

> Robert,
>
> I'll start working on this addition the current Monday
>
> Leonia
>
> Robert Mutel wrote:
>
>> Dear AIPS people, esp. Leonia,
>>
>> We (Bill Peterson and I) are in the middle of a 6 -epoch HSA
>> observation of Algol at U band. Since the K star in the inner binary
>> moves significantly in a 12 hour
>> observation period, and the radio emission is (likely nearly)
>> co-moving with the K star, we would like to be able to adjust the
>> phases so the phase center follows the K star.
>> Thus we would like AIPS to be able to correct for a moving source.
>>
>> This could be done [probably easily] by modifying CLCOR. The easiest
>> enhancement would be a linear approximation, i.e., the user specifies
>> a RA and dec rate (in mas/hr say).
>> A more sophisticated approach would be to read in a table of RA/Dec
>> offsets as a function of JD.
>>
>> This enhancement would benefit all users who are observing moving
>> sources whose coordinates shift by a significant amount w.r.t. the
>> synthesized beam within an observation period.
>>
>> Robert Mutel and Bill Peterson
>>
>> _______________________________________________
>> Daip mailing list
>> Daip at listmgr.cv.nrao.edu
>> http://listmgr.cv.nrao.edu/mailman/listinfo/daip
>>
>>
>
>


-- 
*Robert Mutel*
Professor of Astronomy
<http://astro.physics.uiowa.edu/faculty/robert_mutel_4.html>
Department of Physics and Astronomy <http://astro.physics.uiowa.edu>
University of Iowa
319-335-1950

Caelum videre iussit, et erectos ad sidera tollere vultus.
He bid them look at the sky and lift their faces to the stars.
--Ovid, Metamorphoses 1. 85-8
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