Re: idea

[Glenn Gombert <gleng@infinet.com>]

        SExtractor will work with just about *any* FITS format image. If you
want to use the FITS header parameters to compute astrometric (RA and DEC)
parameters the key words in the FITS header must be setup & caculated
accordingly. The Univeristy of IOWA's ATFTools kit program "wcs.exe" can be
used to compute the WCS parameters for a particular image based on a
"pattern match" with the HGSC catalog.

        I have generated several TASS Techical Notes on the subject....

Glenn G. 


At 05:10 PM 8/26/97 -0700, you wrote:
>aah@nofs.navy.mil wrote:
>> 
>> Benoit suggested that others outside of the mark III sites might be able
>> to contribute to the TASS survey.  Tom and others agreed, and I concur
>> as well.  Nice idea!
>>   Like Mike G. said, the software has been geared toward the mark III
>> drift scan cameras, and would require some modification for other types.
>
>Yes, "other types" including the MkIV.
>With the MkIV on its way maybe now is the time to make sure our
>software looks inside the FITS headers for required data.  With
>the MkIV there is conciderable operational flexability.  Exposure
>lenght need not be constant frame to frame, The focal lenght
>will not be a constant from camera to camera.  Software that
>can handle a generalized MkIV should also handle an ST-7.
>
>So it is clear the software will need to become smarter just
>to handle the MkIV.  While we are making it so why not look 
>down the road a little farther and think about ST-7s and the like?
>
>
>--Chris Albertson
>
>  chris@topdog.logicon.com                Voice:  818-351-0089  X127
>  Logicon RDA, Pasadena California          Fax:  818-351-0699
>
>
Glenn Gombert <gleng@infinet.com>