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###  Release Note for the ChaMP point source catalog ###
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(1) 2006/04/29 
The first version of the ChaMP point source catalog was posted.
The hardness ratio HR, X-ray colors C21 and C32, and their errors
were calculated with the BEHR program (version 05-03-2005).

(2) 2006/08/09
The hardness ratio HR, X-ray colors C21 and C32, and their errors 
were re-caculated with a new version of the BEHR program 
(version 07-27-2006, Park et al. 2006, astro-ph/0606247, 
See http://hea-www.harvard.edu/AstroStat/BEHR/).