IODP operator and logging contractor: LDEO-BRG Hole: 1256D-ph3 Expedition: 312 Location: Guatemala Basin (NE Equatorial Pacific) Latitude: 6° 44.163' N Longitude: 91° 56.061' W Logging date: December 20-21, 2005 VSP SHOT SUMMARY LISTING (one-way transit times) Gun and Hydrophone Coordinates: Gun Azimuth: 0.0 deg Gun Offset: 49 m Gun Depth (from Schlumberger Zero): 12.3 m Hydrophone Depth (from Schlumberger Zero): 12.3 m Seismic Reference Depth (from Schlumberger Zero): 10.3 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 TRANSIT_TIME TIME_OF_ _NUMBER SHOT_NUMBER SHOT_TIME (m) (s) FIRST_DATA ----- ----- ----- ----- ----- (s) ----- ----- ----- ----- ----- ----- 53 1 21-12-2005:08:37:32 5078.108398 1.636487 1.483000 52 2 21-12-2005:09:00:34 5028.115723 2.791924 1.483000 51 3 21-12-2005:09:11:47 5006.056152 2.788319 1.483000 50 4 21-12-2005:09:26:51 4984.087402 2.785445 1.483000 49 5 21-12-2005:09:36:20 4962.085938 2.781917 1.483000 48 6 21-12-2005:09:46:53 4940.102051 2.778091 1.483000 47 7 21-12-2005:09:58:36 4918.110840 2.774716 1.483000 46 8 21-12-2005:10:08:35 4896.122070 2.771453 1.483000 45 9 21-12-2005:10:21:17 4874.118164 2.767700 1.483000 44 10 21-12-2005:10:35:32 4852.111328 2.763415 1.483000 43 11 21-12-2005:10:59:23 4830.115234 2.759868 1.483000 42 12 21-12-2005:11:09:07 4808.095703 2.756223 1.483000 41 13 21-12-2005:11:20:23 4786.102051 2.752188 1.483000 40 14 21-12-2005:11:30:51 4764.105469 2.748912 1.483000 39 15 21-12-2005:11:40:39 4746.106934 2.746003 1.483000 38 16 21-12-2005:11:50:02 4720.107422 2.741560 1.483000 37 18 21-12-2005:12:08:04 4688.108398 2.735647 1.483000 36 19 21-12-2005:12:17:26 4676.117676 1.492445 1.483000 35 20 21-12-2005:12:27:38 4668.113770 2.731720 1.483000 34 21 21-12-2005:12:36:24 4645.104004 1.511773 1.483000 33 22 21-12-2005:12:46:11 4643.062012 2.727354 1.483000 32 24 21-12-2005:13:01:18 4627.052246 2.724332 1.483000 31 25 21-12-2005:13:10:53 4612.028320 2.721680 1.483000 30 26 21-12-2005:13:20:19 4591.024902 2.717580 1.483000 29 27 21-12-2005:13:31:16 4579.094238 1.640471 1.483000 28 28 21-12-2005:13:41:29 4547.976562 2.709403 1.483000 27 29 21-12-2005:13:49:54 4526.051758 2.705094 1.483000 26 30 21-12-2005:13:57:41 4525.091309 2.705941 1.483000 25 32 21-12-2005:14:14:07 4506.094727 2.702270 1.483000 24 33 21-12-2005:14:26:03 4484.012207 2.697886 1.483000 23 34 21-12-2005:14:36:47 4457.037598 1.631218 1.483000 22 35 21-12-2005:14:43:53 4456.100098 2.334491 1.483000 21 36 21-12-2005:14:57:17 4438.055664 2.689655 1.483000 20 37 21-12-2005:15:06:00 4423.044434 2.686484 1.483000 19 38 21-12-2005:15:14:12 4401.111816 2.681736 1.483000 18 39 21-12-2005:15:26:35 4378.119629 2.677607 1.483000 17 40 21-12-2005:15:34:42 4356.069824 2.673269 1.484000 16 41 21-12-2005:15:40:38 4346.059570 2.671503 1.483000 15 42 21-12-2005:15:46:23 4333.037109 2.668325 1.484000 14 44 21-12-2005:16:05:32 4311.096680 2.664865 1.484000 13 45 21-12-2005:16:13:38 4292.046387 2.661058 1.484000 12 47 21-12-2005:16:23:36 4274.101562 2.657555 1.484000 11 48 21-12-2005:16:31:53 4255.999023 2.663441 1.484000 10 49 21-12-2005:16:39:23 4255.076660 1.828801 1.483000 9 50 21-12-2005:16:49:06 4232.013672 1.620433 1.484000 8 51 21-12-2005:17:00:45 4207.012207 2.643690 1.484000 7 52 21-12-2005:17:13:02 4183.034668 2.638982 1.484000 6 53 21-12-2005:17:21:35 4159.120605 2.634214 1.484000 5 54 21-12-2005:17:28:48 4139.064941 2.630253 1.484000 4 55 21-12-2005:17:36:46 4119.080078 2.625915 1.484000 3 57 21-12-2005:17:47:28 4088.099609 1.652335 1.483000 2 58 21-12-2005:18:00:32 4049.044678 2.610873 1.484000 1 59 21-12-2005:18:06:38 4025.110107 2.604002 1.484000 0 60 21-12-2005:18:14:41 3984.112305 2.594623 1.484000