get-healpix: invalid option -- '-' usage: get-healpix [options] ra dec [-r]: values in radians; default is in decimal degrees or H:M:S OR, get-healpix x y z [-H <healpix>]: take healpix number as input and print center as output. [-N nside] (default 1) [-n]: print neighbours [-R <range>]: print healpixes within radius <range> in degrees [-p]: project position within healpix If your values are negative, add "--" in between "-r" (if you're using it) and "ra" or "x".

get-healpix: invalid option -- '-' usage: get-healpix [options] ra dec [-r]: values in radians; default is in decimal degrees or H:M:S OR, get-healpix x y z [-H <healpix>]: take healpix number as input and print center as output. [-N nside] (default 1) [-n]: print neighbours [-R <range>]: print healpixes within radius <range> in degrees [-p]: project position within healpix If your values are negative, add "--" in between "-r" (if you're using it) and "ra" or "x".