Table C.1: Zero-point calibration point coordinates (British National Grid)

Easting	Northing
412319.2	165407.0
417319.2	165407.0
422319.2	165407.0
427319.2	165407.0
432319.2	165407.0
437319.2	165407.0
442319.2	165407.0
450985.9	165394.4
457319.2	165407.0
463099.1	165570.5
466753.2	165092.5
472319.2	165381.8
487319.2	165407.0
412319.2	170407.0
417319.2	170407.0
422319.2	170407.0
427319.2	170407.0
432319.2	170407.0
437319.2	170407.0
442319.2	170407.0
447319.2	170407.0
452319.2	170407.0
457319.2	170407.0
462319.2	170407.0
482168.3	171979.3
412319.2	175407.0
417319.2	175407.0
422319.2	175407.0
427319.2	175407.0
432319.2	175407.0
437319.2	175407.0
442319.2	175407.0
447319.2	175407.0
452319.2	175407.0
457319.2	175407.0
461999.3	175259.4
476109.1	176539.0
482444.9	175414.9
487319.2	175407.0
412218.6	179778.1
417824.6	180412.3
422319.2	180407.0
427319.2	180407.0
432319.2	180407.0
437319.2	180407.0
442319.2	180407.0
447319.2	180407.0
452099.1	180836.7
457319.2	180407.0
462319.2	180407.0
467319.2	180407.0
472319.2	180407.0
477092.8	180394.4
482319.2	180407.0
422319.2	185407.0
427319.2	185407.0
432319.2	185407.0
437319.2	185407.0
442319.2	185407.0
447319.2	185407.0
452319.2	185407.0
457319.2	185407.0
462319.2	185407.0
467327.7	185463.6
472319.2	185407.0
477319.2	185407.0
482319.2	185407.0
486250.0	185545.4
411162.0	191363.0
417319.2	190407.0
422452.8	190388.5
427319.2	190407.0
432319.2	190407.0
437319.2	190407.0
442319.2	190407.0
447217.3	190524.7
452070.5	188676.6
457319.2	190407.0
463139.4	189884.4
467319.2	190407.0
472319.2	190407.0
477319.2	190407.0
482319.2	190407.0
487394.7	189841.0
412319.2	195407.0
417319.2	195407.0
422319.2	195407.0
427319.2	195407.0
432319.2	195407.0
437319.2	195407.0
442319.2	195407.0
447139.3	195371.3
452319.2	195407.0
457319.2	195407.0
462319.2	195407.0
467319.2	195407.0
472319.2	195407.0
477847.5	195054.8
482319.2	195407.0
486325.5	195960.5
412218.6	200721.5
417655.8	200913.4
422646.2	199954.2
427319.2	200407.0
432319.2	200407.0
437319.2	200407.0
442319.2	200407.0
447319.2	200407.0
452319.2	200407.0
457319.2	200407.0
462319.2	200407.0
467319.2	200407.0
472319.2	200407.0
477319.2	200407.0
482742.7	201256.1
485746.9	201363.0
412319.2	205407.0
417319.2	205407.0
422319.2	205407.0
426760.4	205426.0
432319.2	205407.0
437319.2	205407.0
442319.2	205407.0
446936.9	205563.1
457273.2	205634.0
463073.3	205835.6
467319.2	205407.0
472993.9	205010.1
477319.2	205407.0
481061.3	206438.4
486325.5	203960.5
412319.2	210407.0
417319.2	210407.0
422319.2	210407.0
427238.8	210316.0
432083.4	210597.5
438076.7	210542.5
442319.2	210407.0
447319.2	210407.0
452583.8	210457.3
457319.2	210407.0
462319.2	210407.0
467319.2	210407.0
472428.7	210446.7
477319.2	210407.0
481048.8	209463.6
488841.2	209891.3
412319.2	215407.0
417319.2	215407.0
422319.2	215407.0
427319.2	215407.0
432697.0	215316.0
437342.5	215334.0
442319.2	215407.0
446016.1	214084.1
452319.2	215407.0
457319.2	215407.0
462319.2	215407.0
467148.8	215458.4
472319.2	215407.0
477319.2	215407.0
483286.3	216214.2
488099.1	216438.4
411853.8	220394.4
417306.6	219488.8
422319.2	220759.2
427319.2	220407.0
432319.2	220407.0
437319.2	220407.0
442319.2	220407.0
447319.2	220407.0
452319.2	220407.0
457445.0	218784.4
462608.5	221413.3
467319.2	220407.0
472234.8	220318.6
477319.2	220407.0
482319.2	220407.0
487319.2	220407.0
411916.7	225142.8
416728.0	225407.0
422319.2	225407.0
427319.2	225407.0
432319.2	225407.0
437319.2	225407.0
442319.2	225407.0
447319.2	225407.0
452319.2	225407.0
457319.2	225407.0
462319.2	225407.0
466526.7	225583.1
472319.2	225407.0
477319.2	225407.0
482319.2	225407.0
487319.2	225407.0