ABEM Terraloc Pro 29311 Appendix C. The First Arrivals File Format (PCK)GeneralThis is an ASCII text file format, containing first arrivals for a record. The file isformatted, so it can be printed on any printer that prints ASCII text.Each trace is represented on one row, and trace number 1 always starts on line 1. Foreach line the following columns are listed• Time for first arrival picking (ms)o Note! If no pick has been made this is marked by the time being set to anegative value. In the example in 11.2 Description traces 16 and 20 hasnot been picked and have values “-0.003800”.• Set value (always 0)• Source X coordinate• Source Y coordinate• Receiver X coordinate• Receiver Y coordinateFollowing the format for this type of files it is of course possible create new first arrivalfiles manually using a text editor. Be sure however, to save the text in ASCII formatand not in any word-processing format (e.g. WordPerfect or Microsoft Word).Description-OF-FILE>1: 0.024400 0 23.00 0.00 0.00 0.002: 0.023400 0 23.00 0.00 2.00 0.003: 0.022400 0 23.00 0.00 4.00 0.004: 0.020200 0 23.00 0.00 6.00 0.005: 0.018800 0 23.00 0.00 8.00 0.006: 0.016000 0 23.00 0.00 10.00 0.007: 0.013800 0 23.00 0.00 12.00 0.008: 0.013800 0 23.00 0.00 14.00 0.009: 0.012200 0 23.00 0.00 16.00 0.0010: 0.011800 0 23.00 0.00 18.00 0.0011: 0.007600 0 23.00 0.00 20.00 0.0012: 0.005200 0 23.00 0.00 22.00 0.0013: 0.004400 0 23.00 0.00 46.00 0.0014: 0.008000 0 23.00 0.00 44.00 0.0015: 0.011400 0 23.00 0.00 42.00 0.0016: -0.003800 0 23.00 0.00 40.00 0.0017: 0.012400 0 23.00 0.00 38.00 0.0018: 0.014400 0 23.00 0.00 36.00 0.0019: 0.016200 0 23.00 0.00 34.00 0.0020: -0.003800 0 23.00 0.00 32.00 0.0021: 0.021600 0 23.00 0.00 30.00 0.0022: 0.024000 0 23.00 0.00 28.00 0.0023: 0.025000 0 23.00 0.00 26.00 0.0024: 0.026000 0 23.00 0.00 24.00 0.00-OF-FILE>