B-mode gaps (or duplicate numbers) in sounding sequence: (The soundings numbered below exist, gaps are in between), 624326 to 624328 624538 to 624540 624705 to 624707 624719 to 624721 624999 to 625001 625274 to 625276 625499 to 625501 625531 to 625533 625855 to 625857 626007 to 626009 626056 to 626058 626571 to 626573