IODP operator and logging contractor: LDEO-BRG Hole: U1301B Expedition: 301 Location: Juan de Fuca Ridge (NE Pacific) Latitude: 47° 45.229' N Longitude: 127° 45.826' W Logging date: August 2004 VSP SHOT SUMMARY LISTING (one-way transit times) Gun and Hydrophone Coordinates: Gun Azimuth: 0.0 deg Gun Offset: 49.0 m Gun Depth (from Schlumberger Zero): 13.3 m Hydrophone Depth (from Schlumberger Zero): 13.3 m Seismic Reference Depth (from Schlumberger Zero): 11.3 m Other VSP constants: Surface Velocity: 1524 m/s Acquisition Break Time: Time between start of recording and first break Acquisition Transit Time: Time between shot firing (as recorded by blast phone) and first break. The shot is fired ~12 milliseconds after start of recording. The difference between Acquisition Break Time and Acquisition Transit Time is not constant and varies for each shot. SHOTSEQUENCE ACQUISITION_ ACQUISITION_ CABLE_LENGTH ACQUISITION_ ACQUISITION_ _NUMBER SHOT_NUMBER SHOT_TIME (m) BREAK_TIME TRANSIT_ ----- ----- ----- ----- (s) TIME ----- ----- ----- ----- ----- (s) ----- ----- ----- ----- ----- ----- 56 72 02-08-2004:06:12:59 3081.398438 0.000000 0.000000 57 73 02-08-2004:06:13:35 3081.398438 0.000000 0.000000 58 74 02-08-2004:06:13:55 3081.398438 0.605446 0.596848 59 75 02-08-2004:06:14:15 3081.398438 0.612403 0.602860 60 76 02-08-2004:06:14:35 3081.398438 0.607179 0.597593 61 77 02-08-2004:06:19:30 3081.398438 0.000000 0.000000 62 78 02-08-2004:06:19:50 3081.398438 0.000000 0.000000 63 79 02-08-2004:06:20:11 3081.398438 0.613778 0.605205 64 80 02-08-2004:06:20:34 3081.398438 0.000000 0.000000 65 81 02-08-2004:06:23:02 3081.398438 1.341672 1.333079 66 82 02-08-2004:06:23:22 3081.398438 0.653452 0.644868 67 83 02-08-2004:06:23:42 3081.398438 0.650917 0.641317 68 84 02-08-2004:06:24:02 3081.398438 0.627708 0.618105 69 85 02-08-2004:06:24:22 3081.398438 0.000000 0.000000 70 86 02-08-2004:06:24:41 3081.398438 0.000000 0.000000 71 87 02-08-2004:06:25:02 3081.398438 0.615272 0.605646 72 88 02-08-2004:06:25:22 3081.398438 0.000000 0.000000 73 89 02-08-2004:06:25:42 3081.398438 0.675289 0.665672 74 90 02-08-2004:06:26:06 3081.398438 0.973250 0.963639 52 91 02-08-2004:06:47:23 3072.998779 0.610888 0.603354 53 92 02-08-2004:06:47:43 3072.998779 0.605828 0.597251 54 93 02-08-2004:06:48:06 3072.998779 0.000000 0.000000 55 94 02-08-2004:06:48:40 3072.998779 0.610419 0.600807 31 95 02-08-2004:06:51:56 3049.999023 0.000000 0.000000 32 96 02-08-2004:06:52:16 3049.999023 1.978509 1.968923 33 97 02-08-2004:06:52:35 3049.999023 0.988451 0.978870 34 98 02-08-2004:06:53:07 3049.999023 0.849489 0.839921 35 99 02-08-2004:06:53:27 3049.999023 0.685214 0.675578 36 100 02-08-2004:06:53:47 3049.999023 0.623720 0.614111 37 101 02-08-2004:06:54:09 3049.999023 0.952193 0.942580 38 102 02-08-2004:06:55:25 3049.999023 0.798245 0.788648 39 103 02-08-2004:06:55:45 3049.999023 0.000000 0.000000 40 104 02-08-2004:06:56:05 3049.999023 0.000000 0.000000 41 105 02-08-2004:06:56:26 3049.999023 1.978572 1.969004 42 106 02-08-2004:06:56:47 3049.999023 0.718344 0.708730 43 107 02-08-2004:06:57:07 3049.999023 0.728222 0.718619 44 108 02-08-2004:06:57:58 3049.999023 0.000000 0.000000 45 109 02-08-2004:06:58:17 3049.999023 0.000000 0.000000 46 110 02-08-2004:06:58:38 3049.999023 0.622420 0.612810 47 111 02-08-2004:06:59:18 3049.999023 0.000000 0.000000 48 112 02-08-2004:06:59:37 3049.999023 0.966445 0.956832 49 113 02-08-2004:06:59:58 3049.999023 1.980195 1.970585 50 114 02-08-2004:07:00:18 3049.999023 1.977558 1.967935 51 115 02-08-2004:07:00:38 3049.999023 0.000000 0.000000 15 116 02-08-2004:07:13:01 3031.698242 1.974029 1.965482 16 117 02-08-2004:07:13:21 3031.698242 1.973709 1.965117 17 118 02-08-2004:07:13:41 3031.698242 1.973765 1.965169 18 119 02-08-2004:07:14:01 3031.698242 1.974307 1.964746 19 120 02-08-2004:07:14:21 3031.698242 1.974091 1.964509 20 121 02-08-2004:07:14:41 3031.698242 1.974560 1.964982 21 122 02-08-2004:07:15:00 3031.698242 1.975298 1.965692 22 123 02-08-2004:07:15:21 3031.698242 1.974406 1.964824 23 124 02-08-2004:07:15:40 3031.698242 1.975153 1.965559 24 125 02-08-2004:07:16:29 3031.698242 1.973871 1.964280 25 126 02-08-2004:07:16:49 3031.698242 1.974547 1.964959 26 127 02-08-2004:07:17:09 3031.698242 1.975035 1.965424 27 128 02-08-2004:07:17:29 3031.698242 1.974806 1.965219 28 129 02-08-2004:07:17:49 3031.698242 1.973752 1.964146 29 130 02-08-2004:07:18:09 3031.698242 1.975022 1.965409 30 131 02-08-2004:07:18:29 3031.698242 1.975356 1.965742 0 132 02-08-2004:07:22:04 3026.597900 1.973413 1.963867 1 133 02-08-2004:07:22:24 3026.597900 1.971977 1.963397 2 134 02-08-2004:07:22:44 3026.597900 0.000000 0.000000 3 135 02-08-2004:07:23:04 3026.597900 1.973552 1.963934 4 136 02-08-2004:07:23:23 3026.597900 1.974574 1.964956 5 137 02-08-2004:07:23:44 3026.597900 1.973952 1.964350 6 138 02-08-2004:07:24:04 3026.597900 1.974160 1.964552 7 139 02-08-2004:07:24:25 3026.597900 1.973952 1.964332 8 140 02-08-2004:07:24:45 3026.597900 1.973748 1.964157 9 141 02-08-2004:07:25:12 3026.597900 1.974255 1.964661 10 142 02-08-2004:07:25:31 3026.597900 1.974058 1.964454 11 143 02-08-2004:07:25:51 3026.597900 1.973819 1.964262 12 144 02-08-2004:07:26:12 3026.597900 1.974410 1.964847 13 145 02-08-2004:07:26:32 3026.597900 1.974881 1.964284 14 146 02-08-2004:07:26:52 3026.597900 1.974516 1.964949