*This file defines the vaild keywords taht the SEG2SEGY
*program understands
*any line beginning with * is ignored by keyword parser.
*general form of keyword line is:
*
*KEYWORD function# parm0 [parm1 parm2 ... parm 10]
*
*currently defined function:
*
*0-keyword is acknowleged as a vaild keyword,however no information can be used
*by SEGY format.
*
*1-insert an integer (16 bit) value in input-atream in header
*location after multiplying by  parm1.INTEGER VALUE ONLY (Subser of function 5)
*
*2-Special function for TRACE_SORT
*Inspect string in data stream and insert
*appropriate value on SEG-Y reel header location
*See code (keycheck.c) for details
*
*3-copy the string found on this input line to the SEGY-Y reel header
*line (1-40) identified by the parm 0 value 
*Each line is 80 chars long (80*40=3200)
*
*4-Special function like #2 trace type this time
*
*5-Modified function 1.parm-0 represents data type in
*input stream.0=int.1=long int.2=floating point.parm 1
*is multiplier.parm2-10 are the SEG-Y header location (16-bit)
*of each value on the input list.use with
*keywords that have more than one value/line.See descriptions
*with ALIAS_FILTER
*
*
*A key word may be repeated as many times as necessary to complete
*the data insertion. This allows for the same input data to	be placed
*in multiple location.See FIXED_GAIN as an example
*
ACQUISITION_DATE 3 6
ACQUISITION_TIME 3 7
*below is an example of function 5, the 0 means int,the 1 is the multiplier.
*and the values are to be inserted in location 71 and 72 of the 
*SEGY trace header.
ALIAS_FILTER 5 0 1 71 72
*Below is another example of function 5.
*The inserted value is typed a long integer.
*(first 1) and is inserted into byte location 12 after being multiplied
*by 1 (second 1)
CDP_NUMBER 5 1 1 12
CDP_TRACE 5 1 1 14
CHANNEL_NUMBER 5 1 1 8
CLIENT 3 1
COMPANY 3 2
DATUM 5 1 1 28
*AEG-Y's delay time is in ms. SEG-2 supplies
*time in seconds,therefore the multipliter of 1000
DELAY 1 55 1000
END_OF_GROUP 1 88 1
*SEG-Y has two location whrer gain can be inserted
FIXED_GAIN 1 61 1
FIXED_GAIN 1 62 1
HIGH_CUT_FILTER 5 0 1 76 78
INSTRUMENT 3 4
JOB_ID 3 9
LINE_ID 3 3
LOW_CUT_FILTER 5 0 1 75 77
*notch in SEG-2 does not currently define slope
NOTCH_FREQUENCY 5 0 1 73
OBSERVER 3 5
*RAW RECORD will work only with file names that are	number
RAW_RECORD 5 1 1 6
*SEG-Y identifies receiver_location as Croup-coordinates
RECEIVER_LOCATION 5 1 1 42 44 22
*receiver_station in not defined in seg-y.Use word 93
RECEIVER_STATION_NUMBER 1 93 1
*SEG-Y expect time in micro-seconds therefore multiplier = 1e6
SAMPLE_INTERVAL 1 59 1000000
*SEG-Y identifies source_location as source-coordinate
SOURCE_LOCATION 5 1 1 38 40 26
*shot_sequence is not defined in seg-y.Use word 92
SHOT_SEQUENCE_NUMBER 1 92 1
*source_station is not defined in seg-y.Use word 94
SOURCE_STATION_NUMBER 1 94 1
STACK 1 16 1
STATIC_CORRECTIONS 5 0 1 50 51 52
TRACE_SORT 2 1615
TRACE_TYPE 4 15
UNITS 3 8
*end of keywords with explicitfunction
*below are keywords known but undefineed for SEG-Y
AMPLITUDE_RECOVERY 0 0
BAND_REJECT_FILTER 0 0
DESCALING_FACTOR 0 0
DIGITAL_BAND_REJECT_FILTER 0 0
DIGITAL_HIGH_CUT_FILTER 0 0
DIGITAL_LOW_CUT_FILTER 0 0
GENERAL_CONSTANT 0 0
NOTE 0 0
POLARITY 0 0
PROCESSING_DATE 0 0
PROCESSING_TIME 0 0
RECEIVER 0 0
RECEIVER_GEOMETRY 0 0
RECEIVER_SPECS 0 0
SKEW 0 0
SOURCE 0 0
SOURCE_GEOMETRY 0 0