TM 5-6675-250-20
2-16. DETERMINATION OF AZIMUTH VALUE FOR REFERENCE MIRROR (Continued)
L O C A T I O N / I T EM
A C T I ON
R E M A R K S
ar.
Obtain the mirror reading (42) by doing the
f o l l o w i n g :
(1) Add 3200.00 to the reverse
r e a d i n g.
(2) Add the direct and reverse
r e a d i n g s.
( 3 ) D i v i d e t h e r e s u l t s o f s t e p
(2) by 2 to obtain the mean
mirror reading.
2-89
