WCSTools

ssao
SAO Catalog Search Program

WCSTools programs
ssao finds objects in the SAO Catalog within a specified region of the sky and lists their sky positions or lists specific entries in that catalog. It is a symbolic link to scat, and is equivalent to running scat -c sao ....

By default, only the brightest 100 objects (or closest 100, if the -s p option is used) are returned. Use the -n option to increase this number.

Output is to standard out, unless the -w flag is set, in which case it goes to objectname.sao or search.sao. It is alink to scat and is somewhat similar to rsao, which can search from lists of coordinates but cannot sort the output. This program automatically senses the byte order of the catalog and, if necessary, swaps it to match the byte order of the machine on which it is executing.

Set the environment variable WCS_BINDIR to the directory containing the files SAOra for searching and SAO for access by number.

Command Line Arguments

Examples

Search with results to standard output
Search with results to a file
Find closest star
Find stars by number
Match stars in input catalog

Last updated 30 July 2002 by Doug Mink dmink@cfa.harvard.edu

Telescope Data Center