Tenum CALITOO, User Manual

Page: 30 / 59

30
October 2016
...then, the measurement logarithm is proportional to relative air mass (AM)
By fitting a line through the data (linear regression), the intersection of said line
with the y-axis, where m = 0, is the logarithm of the measurement that the
instrument would produce if it were no atmosphere Ln (No).
0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5 4,0 4,5 5,0
0,70
0,60
0,50
0,40
0,30
0,20
0,10
0,00
ln(N)
Relative Air Mass
0,0 0,5 1,0 1,5 2,0 2,5 3,0 3,5 4,0 4,5 5,0
0,70
0,60
0,50
0,40
0,30
0,20
0,10
0,00
ln(N)
Relative Air Mass
Ln(No)
θ
AM
=
1
sin
(θ)