private boolean noWCS(String RA, String DEC, String VEL, String w_RA, String w_DEC, String w_50, String w_20, String w_VEL) {
        return RA.length() == 0
            && DEC.length() == 0
            && VEL.length() == 0
            && w_RA.length() == 0
            && w_DEC.length() == 0
            && w_50.length() == 0
            && w_20.length() == 0
            && w_VEL.length() == 0;
    }