fix_file_type:      simple
        fix_file:           ../../nav/a_ex.gps

        reference_file:     ../../nav/a_ex.nav
        output_file:        a_ex_7.cal

        year_base=          2017
        min_n_fixes=        7 /* 5 7 9 */

        n_refs=             7 /* 5 7 9 */

        i_ref_l0=           1
        i_ref_l1=           2 /* 1 2 3 */
        i_ref_r0=           5 /* 4 5 6 */
        i_ref_r1=           6 /* 4 6 8 */

        up_thresh=          3.0        /* m/s */
        down_thresh=        3.0        /* m/s */
        turn_speed=         2.0        /* m/s */
        turn_thresh=        60         /* degrees */

        dtmax=              360        /* seconds, for 300-second ensembles */
        tolerance=          5.e-5      /* days, about 5 seconds */
        grid:               ensemble

        use_shifted_times?  no