B-mode gaps (or duplicate numbers) in sounding sequence:
(The soundings numbered below exist, gaps are in between),
687587 to 687589
687924 to 687926
687972 to 687974
687990 to 687992
688072 to 688074
688084 to 688086
688104 to 688106
688116 to 688118
688356 to 688358
688412 to 688414
688416 to 688418
688691 to 688693
688733 to 688735
688917 to 688919
688968 to 688970
689017 to 689019
689027 to 689029