def use_property(kepid, prop):
    """Returns true if provenance of property is SPE or AST
    """
    try:
        prov = kicu.DATA.ix[kepid, '{}_prov'.format(prop)]
        return any([prov.startswith(s) for s in ['SPE', 'AST']])
    except KeyError:
        raise MissingStellarError('{} not in stellar table?'.format(kepid))