Success rates of obtained secure redshifts are shown in the top panel for udf-10 (red) and mosaic (blue). The horizontal dashed line indicates 50% completeness. We only use the objects with HST counterparts in the UVUDF catalog in this plot (i.e., the objects detected only by ORIGIN/MUSELET are excluded). The middle and bottom panels show the counts of the total number of the HST objects (solid bars) and the MUSE redshift determined objects (hatched bars). The vertical dashed line in the bottom panel indicates the magnitude cut where we perform the redshift investigation on the continuum detected objects.