*BEGIN 0122_1978_BHP
;Approx declination for 1978
;*CALIBRATE DECLINATION 6
; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; 11/12/13 - Adjust magnetic declination so centre line
; surveys are aligned to Eur 79 grid rather than True North.
; Applying correction of -0.4 to original magnetic readings in
; Survex aligns to Eur79 grid.
; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

*CALIBRATE DECLINATION 5.88; (6.28-0.4)
2	1	11.4	189	0
3	2	13.2	228	0
4	3	8.4	221	-1
5	4	9.9	213	-4
6	5	15.8	206	-6
7	6	22.7	201	2
8	7	11.8	196	-6
9	8	19.9	221	0
10	9	7.8	184	10
11	10	19.7	212	-10
12	11	24.5	227	-7
13	12	10.2	135	-8
14	13	10.6	157	28
15	14	6.8	195	53
16	15	8.7	98	6
17	16	8.9	222	-5

18	12	11.9	123	-28
19	18	2.2	84	-17


;19 end of other survey

*END 0122_1978_BHP