> > -- Primdat, HDS and IMG all _separately_ define bad values,
> > which match, though they aren't taken from a common source.
>
> PDA does the same thing (see PDA_D1MACH.f in CVS - not the one that
> sits on stardev) for float ranges.
Likewise for AST. The AST__BAD value has always been equal to VAL__BADD
in the past (see astbad.c).
David
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