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Cruise report 25SIRENA 2 / D274 Cruise RRS Discovery Govan, Sept, 12 th – Ponta Delgada, Oct, 1 st , 2003----------------------------------------------------------------------------------------------------------------------Site S1 ( 40°20.1955’ N; 25°02.1024 W )Hydrophone name - H26Acoustic release - Benthos 1045MooringDate - May, 19th, 2002 18:05 GMTAnchor drop position - 40°20.218’ N, 25°02.230’ WShip course - 235 degreesCable length - 2300 m (1000m Vectran, 1000m VLS, 200m VLS,100m VLS)Bottom depth - 3375 mShip’s course - 252°RecoveryDate - Sept., 26, 2003 09:57 GMT (released)Anchor position - 40°20.1955’ N; 25°02.1024 WBottom depth - 3335 m (3-D solution with 5 ranging stations)Weather : - fair & sunny weather, very light wind, very good visibility- arrive on site at 07:00Z- start sending the enable command at 07:28. Release enabled at first try!- ranging completed at 08:35. Anchor appears to have moved 80 m to the S of the anchor dropposition.- start sending release commands at 08:57. Released at first try.- 09:08 : hydrophone pops up on surface less than 100 m off the bow.- 11:00 release on the deck, end of S2 recovery operations..Hydrophone S1 recorded 1015 data files (including the shut-down file)