B-mode gaps (or duplicate numbers) in sounding sequence: (The soundings numbered below exist, gaps are in between), 685256 to 685258 685470 to 685472 685480 to 685482 685528 to 685530 685534 to 685536 685568 to 685570 685614 to 685616 685622 to 685624 685684 to 685686 685716 to 685718 685732 to 685734 685740 to 685742 685748 to 685750 685750 to 685752 685758 to 685760 685764 to 685766 685772 to 685774 685784 to 685786 685800 to 685802 685810 to 685812 685818 to 685820 685822 to 685824 685824 to 685826 685836 to 685838 685846 to 685848 685854 to 685856 685856 to 685858 685906 to 685908 685910 to 685912 685920 to 685922 685922 to 685924 685926 to 685928 685932 to 685934 685936 to 685938 685948 to 685950 685950 to 685952 685960 to 685962 685972 to 685974 685975 to 685977 685980 to 685982 686012 to 686014 686050 to 686052 686072 to 686074 686076 to 686078 686100 to 686102 686224 to 686226 686300 to 686302 686332 to 686334 686494 to 686496 686768 to 686770 686770 to 686772 686772 to 686774 686774 to 686776 686776 to 686778 686778 to 686780 686780 to 686782 686782 to 686784 686784 to 686786 686786 to 686788 686788 to 686790 686790 to 686792 686792 to 686794 686794 to 686796