B-mode gaps (or duplicate numbers) in sounding sequence: (The soundings numbered below exist, gaps are in between), 762182 to 762184 762184 to 762186 762186 to 762188 762188 to 762190 762190 to 762192 762192 to 762194 762194 to 762196 763322 to 763324 763895 to 763897 764493 to 764495 764495 to 764497 764497 to 764499 764499 to 764501 764501 to 764503 764503 to 764505 764505 to 764507 764507 to 764509 764509 to 764511 764511 to 764513 764513 to 764515 764515 to 764517 764517 to 764519 764519 to 764521 764521 to 764523 764523 to 764525 764525 to 764527 764527 to 764529 764529 to 764531 764531 to 764533 764533 to 764535 764535 to 764537 764537 to 764539 764539 to 764541 764541 to 764543 764543 to 764545 764545 to 764547 764547 to 764549 764549 to 764551 764551 to 764553 764553 to 764555 764555 to 764557 764557 to 764559 764559 to 764561 764561 to 764563 764563 to 764565 764565 to 764567