Well, none of the starcheck characteristics are on github or stored in the
starcheck project.  They're in the separately versioned
starcheck_characteristics area which is just in /proj/sot/ska/git.  And,
since starcheck reads directly from /proj/sot/ska/data/starcheck and
starcheck_characteristics doesn't (if I recall correctly) write out a
version number anywhere there, starcheck has no idea which characteristics
version was used to generate a particular set of products.  So the only
place this is really stored is in the twiki page which lists when a
starcheck release / starcheck characteristics release occurred.  There's
obviously room for improvement in a bunch of places there.