-Input SEGZ format name = A3855.84945-84.2D.f-mig-prena.200707.cnc.0.fmt SEGZ Version number = V1 SEGZ Header 0 NAME LENGTH Description SEGZ Header 1 TEXTUAL-HEADER 3200 SEGY Rev(0) Default length of character line header (bytes) SEGZ Header 2 FILE-HEADER 400 Length of binary line header (bytes) SEGZ Header 3 TRACE-HEADER 240 Length of trace header (bytes) SEGZ Header 4 NAME TYPE Description SEGZ Header 5 TRACE_SAMP_FORMAT IEEE4 Format 6 in the binary header over rides the value in binary header SEGZ Header 6 ENDIANESS BIG Big Endian data suitable for SUN type computers FILE Header 0 NAME BYTE TYPE VECTOR SCALAR ADDEND Description FILE Header 1 LINE_ID 1 ASCII 12 1 0 Line_ID (Reference Number) FILE Header 2 FILE_SAMP_RATE 17 INT2 1 1 0 Sample Interval FILE Header 3 FILE_SAMP_NUM 21 INT2 1 1 0 Number of data samples per trace or the maximum number of Samples FILE Header 4 TRACE_SAMP_FORMAT 25 INT2 1 1 0 Data sample format code 1=IBM floating point 6=IEEE Canadian FILE Header 5 LENGTH_SYS 55 INT2 1 1 0 1=metres 2=feet FILE Header 6 DOMAIN 69 INT2 1 1 0 Domain code: 0=time 1=amplitude 3=phase 4=depth FILE Header 7 SURVEY_DATUM 71 ASCII 6 1 0 Survey Datum eg NAD27 WGS84 FILE Header 8 SURVEY_SURVEY_GRID 77 ASCII 6 1 0 Survey Grid eg ATS2.6 FILE Header 9 TIME2FIRST_SAMPLE 97 INT4 1 1 0 Time to first sample in ms FILE Header 10 SEIS_DATUM 125 IEEE4 1 1 0 elevation FILE Header 11 SEIS_REPLACEMENT_VELOCITY 129 IEEE4 1 1 0 Seismic replacement velocity FILE Header 12 MERIDIAN 157 INT4 1 1 0 Central Meridian FILE Header 13 EPSG_CODE 161 INT4 1 1 0 EPSG codes see http://www.epsg.org/ FILE Header 14 LINE_NAME 301 ASCII 32 1 0 Internal Line Name FILE Header 15 GEOMETRY 393 INT4 1 1 0 2=2D line 3=3D TRACE Header 0 NAME BYTE TYPE VECTOR SCALAR ADDEND Description TRACE Header 1 ITRACE_LINE 1 INT4 1 1 0 Trace sequence no within line TRACE Header 2 SOURCE_POINT 17 IEEE4 1 1 0 Energy source point number (shot peg) TRACE Header 3 CDP 21 INT4 1 1 0 Ensemble no. (CDP CMP CRP etc) TRACE Header 4 TRTYPE 29 INT2 1 1 0 1=data 2=dead 3=dummy 4=time break 5=uphole (etc TRACE Header 5 HORI_NSUM 33 INT2 1 1 0 No of horizontally summed traces in this trace TRACE Header 6 REC_HT 41 IEEE4 1 1 0 Elevation at receiver group TRACE Header 7 SOURCE_DEPTH 49 IEEE4 1 1 0 Depth of source below surface (+ve) TRACE Header 8 CDP_X 81 IEEE4 1 1 0 X-coordinate of ensemble (CDP) for this trace TRACE Header 9 CDP_Y 85 IEEE4 1 1 0 CPD coordinate (Y) TRACE Header 10 SOURCE_STATIC 99 INT2 1 1 0 SOURCE_STATIC Source static correction [ms] TRACE Header 11 REC_STATIC 101 INT2 1 1 0 REC_STATIC Receiver group static correction [ms] TRACE Header 12 TOTAL_STATIC 103 INT2 1 1 0 TOTAL_STATIC Total static applied [ms] TEXTUAL_HEADER = 3200 FILE_HEADER = 400 TRACE_HEADER = 240 -Input segy/segz data file = A3855.84945-84.2D.f-mig-prena.200707.cnc.0.segy -Output 1994 CSEG SEGY file = A3855.84945-84.2D.f-mig-prena.200707.cnc.0.csgy File is BIG endian LINE_ID= A3855 FILE_SAMP_RATE= 2000 FILE_SAMP_NUM= 10 TRACE_SAMP_FORMAT= 3 LENGTH_SYS= 1 DOMAIN= 0 SURVEY_DATUM= NAD27 SURVEY_SURVEY_GRID= N/A TIME2FIRST_SAMPLE= 0 SEIS_DATUM= 200 SEIS_REPLACEMENT_VELOCITY= 3500 MERIDIAN= 0 EPSG_CODE= 0 LINE_NAME= 84945-84 GEOMETRY= 2 I S C T H R S C C S R T T O D R O E O D D O E O R U P T R C U P P U C T A R Y I _ R _ _ R _ A C C P _ H C X Y C S L E E E N T E E T _ _ _ S _ _ A S L P U D S T T I O M E T I A N I P A C T E N T T I T H I C C ________|___________|________|_____|_____|___________|___________|___________|___________|_____|_____|_____| 1 1112.500 1 1 1 -0.283 -1.000 541483.312 7723745.000 32 -5 28 2 1113.000 2 1 1 -0.267 -1.000 541485.938 7723720.000 30 -3 27 3 1113.500 3 1 2 -0.250 -1.000 541488.562 7723695.000 30 -2 28 4 1114.000 4 1 1 -0.233 -1.000 541491.188 7723670.500 31 -1 30 5 1114.500 5 1 2 -0.217 -1.000 541493.875 7723645.500 31 1 32 6 1115.000 6 1 2 -0.200 26.000 541496.500 7723620.500 32 3 35 7 1115.500 7 1 3 -0.167 -1.000 541499.375 7723596.000 33 4 37 8 1116.000 8 1 3 -0.133 -1.000 541502.188 7723571.000 34 5 39 9 1116.500 9 1 4 -0.100 -1.000 541505.000 7723546.000 34 6 40 10 1117.000 10 1 4 -0.067 -1.000 541507.875 7723521.500 35 7 42 20 1122.000 20 1 7 -0.133 -1.000 541535.625 7723272.500 35 12 47 30 1127.000 30 1 8 -0.200 12.000 541563.312 7723025.000 37 17 54 40 1132.000 40 1 13 -0.367 -1.000 541591.312 7722776.000 46 35 81 50 1137.000 50 1 16 -0.400 -1.000 541619.062 7722529.000 51 44 95 60 1142.000 60 1 17 -0.300 37.000 541647.125 7722280.500 62 50 112 70 1147.000 70 1 19 2.767 -1.000 541674.812 7722033.000 64 53 117 80 1152.000 80 1 20 4.333 -1.000 541702.688 7721784.000 65 54 119 90 1157.000 90 1 18 5.100 34.000 541730.625 7721536.500 66 56 122 100 1162.000 100 1 19 5.367 -1.000 541758.312 7721288.500 67 58 125 200 1212.000 200 1 18 7.833 -1.000 542161.312 7718828.000 69 55 124 300 1262.000 300 1 14 5.699 34.000 542302.812 7716347.000 69 59 128 340 1282.000 340 1 1 29.033 34.000 542383.312 7715352.500 62 49 111 End of File A3855.84945-84.2D.f-mig-prena.200707.cnc.0.segy -fini