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ASTCAT access to 2Mass and USNO-B1
- Friday, August 17 2007 @ 06:12 PM GMT
- Contributed by: valdes
- Views: 5,258
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ESOSELECT -- HSELECT for ESO HIERARCH Keywords
- Monday, May 08 2006 @ 08:41 PM GMT
- Contributed by: fitz
- Views: 4,887
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New task to group data on the sky
- Friday, February 10 2006 @ 09:36 PM GMT
- Contributed by: valdes
- Views: 2,481
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New script task SKYSEP
- Friday, February 10 2006 @ 08:42 PM GMT
- Contributed by: valdes
- Views: 2,708
The calculation of the separation between two celestial points is a standard astronomical utility. In SPP routines may be found in the math$slalib package. At the CL level there is astcalc and asthedit. However those are fairly complex and in scripts one would like to have a simple interface. People can write their own script code but I thought it would be useful to provide one. The SKYSEP help page is already available from this site, the script is in the body of the story and will be available in the upcoming release in the NPROTO package.
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Code Tools: Evaluating Spline Coefficients
- Tuesday, December 06 2005 @ 04:58 PM GMT
- Contributed by: admin
- Views: 3,326
One of the long-forgotten ADASS newsgroups was adass.iraf.sources, the point of which was to allow users to post small bits of code others may find useful. While we work to decide how we'll organize something similar we'll simply post the code in a new topic.
Weidong Li at UCBerkeley asked recently how one can use the coefficients produced by CURFIT to evaluate the fit at arbitrary points. After a quick pointer, and in what we hope will be an iraf.net tradition, he coded a solution and agreed to share it here. Thanks Weidong!
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