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Attribute Files (TriNav)
Contents
Chapter 1: Introduction
Chapter 2: Standard TriNav tab separated files
Chapter 3: Channel RMS
Chapter 3: NFH QC
Chapter 1: Introduction
These are the extra ASCII files that you can import into the Project Manager (PM) which are not the P1/11, and P2/11. They are all called ‘Attribute files’ in PM, and will be automatically interpreted from their headers based on standard logic built into PM. If the header text in these files is non-standard, then logic can be manually added to your project to interpret the files. Please email support@havian.com for this, if you find that the desired attributes are not displaying.
For Vessels operating TriNav the common attribute files supported are
Standard TriNav tab separated attribute files
Channel RMS File - data at every shot
NFH QC
Chapter 2: Standard TriNav tab separated files
TriNav systems typically do not include gun QC such as pressure and timing in their P2/11.
These are usually provided in these files:
S001_SubArray_SP_Attributes.txt
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SAIL_SEQ SHOTPOINT SOURCE TI.SUBARRAY TR.ARR_PRESS
1 2622 2 4 2008.6
1 2622 2 5 2006.7
1 2622 2 6 2012.0
1 2621 1 1 2012.4
1 2621 1 2 2019.0
1 2621 1 3 2014.5
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S001_Gun_Timing_Attributes.txt
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SAIL_SEQ SHOTPOINT SOURCE TI.SUBARRAY TI.GUNID TR.DELAY TR.ERR
1 2622 2 4 1 17.10 0.00
1 2622 2 4 2 17.10 -0.20
1 2622 2 4 3 11.90 0.00
1 2622 2 4 4 11.10 0.00
1 2622 2 4 5 12.00 -0.10
1 2622 2 4 6 11.30 0.00
1 2622 2 4 7 12.20 0.00
1 2622 2 4 8 12.00 0.00
1 2622 2 5 1 17.30 -0.10
1 2622 2 5 2 16.70 -0.20
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Chapter 3: Channel RMS
This is a file that has channel RMS data at every shot. It typically contains 3-4 windows of RMS, with 2 being noise windows and 2 being signal windows.
This data is used to create the attributes ‘signal to noise’, and ‘source balance’, as well as populate RMS colour grid plots, and the channels module.
The following is an example of the file type most commonly produced by TriNav. The file needs to clearly identify the shot and channel columns and some recognisable RMS window names.
Example - 001-LineName-RMS.txt
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SRC_POINT CABLE CHANNEL TGT_RMS DEEP_RMS WC_RMS
5863 1 1 422.35 35.40 8.17
5863 1 2 493.17 29.61 7.01
5863 1 3 489.58 30.01 9.61
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Chapter 4: NFH QC
A file that contains NFH attributes such as Bubble Period, RMS Peak and onset time at each NFH channel.
Example - 001-0000-NFH.txt
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SEQ SRC_POINT STRING POSITION NFH_PEAK NFH_RMS
18 15508 1.00 1.00 6.22 0.75
18 15508 1.00 2.00 3.97 0.32
18 15508 1.00 3.00 3.40 0.46
18 15508 1.00 4.00 3.18 0.33
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