Scotian Margin (Mariprobe) 2001 – Line 2

SEGY – files

Pos.	Sampling rate	Clock start
JD  HH.MM	Clock drift applied
(msec/hour)	Static time shift
(msec)	Raw datafiles	Shots in SEGY file	SEGY filename	Remarks	
1	139.00 Hz	171 15.00	+0.02	-0.413	datafile.000 -234 	1 to 3643	s201ch[1-4].sgy		
2	139.00 Hz	172 00.20	+0.01	+5,588	datafile.000 -238 	1 to 3643	s202ch[1-4].sgy		
3	139.00 Hz	172 00.05	+0.02	+2.145	datafile.000 -242 	1 to 3643	s203ch[1-4].sgy		
4	139.00 Hz	172 03.22	-0.05	+0.108	datafile.000 -245 	1 to 3643	s204ch[1-4].sgy		
5	139.00 Hz	171 21.56		-0.085			s205ch[1-4].sgy	OBS not rcovered	
6	278.00 Hz	172 01.11	-0.06	+2.688	datafile.000 - 511	1 to 3643	s206ch[1-4].sgy		
7	139.00 Hz	172 03.55	No drift applied	+4.052	datafile.000 - 265	1 to 3643	s207ch[1-4].sgy		
8	139.00 Hz	172 05.57	+0.12	+5.345	datafile.000 - 269	1 to 3643	s208ch[1-4].sgy		
9	139.00 Hz	172 11.40	+0.05	-0.381	datafile.000 - 266	1 to 3643	s209ch[1-4].sgy		
10	139.00 Hz	172 13.46	-0.05	+3.002	datafile.000 - 278	1 to 3643	s210ch[1-4].sgy		
11	139.00 Hz	172 16.36	+0.06	+2.923	datafile.000 - 283	1 to 3643	s211ch[1-4].sgy		
12	139.00 Hz	172 18.06	+0.02	+3.985	datafile.000 - 289	1 to 3643	s212ch[1-4].sgy		
13	139.00 Hz	172 08.32	-0.09	+5.810	datafile.000 - 293	1 to 3643	s213ch[1-4].sgy		
14	139.00 Hz	172 12.14	+0.51	+3.052	datafile.000 - 298	1 to 3643	s214ch[1-4].sgy		
15	139.00 Hz	172 23.32	+0.14	+4.195	datafile.000 - 303	1 to 3643	s215ch[1-4].sgy		
16	139.00 Hz	173 01.19	-0.14	-0.170	datafile.000 - 308	1 to 3643	s216ch[1-4].sgy		
17	139.00 Hz	172 22.19	-0.02	+1.216	datafile.000 - 313	1 to 3643	s217ch[1-4].sgy		
18	139.00 Hz	172 12.00	+0.11	+1.487	datafile.000 - 318	1 to 3643	s218ch[1-4].sgy		
19	139.00 Hz	173 01.47	-0.03	-0.070	datafile.000 - 312	1 to 3643	s2109ch[1-4].sgy		
20	139.00 Hz	173 07.19	+0.04	+0.551	datafile.000 - 318	1 to 3643	s220ch[1-4].sgy		
21	139.00 Hz	173 05.59	-0.38	+4.710	datafile.000 - 323	1 to 3643	s221ch[1-4].sgy		

ch1	hydrophone
ch2	vertical geophone
ch3	horizontal geophone 1
ch4	horizontal geophone 2

1) The static clock drift is