3 |
|
{ |
4 |
|
Source distribution coordinates (degrees). |
5 |
|
|
6 |
< |
Theta is measured from the negative z-axis, |
7 |
< |
phi is measured from the positive x-axis |
8 |
< |
according to the right-hand rule. |
6 |
> |
Theta is measured from the negative z-axis. |
7 |
> |
Phi is measured from the positive x-axis (0 degrees) |
8 |
> |
towards the negative y-axis (90 degrees). |
9 |
|
|
10 |
|
srcB_vert and srcB_horiz are angles |
11 |
|
used in type B photometry. |
33 |
|
lboxcorr(v) = A1 * v / lboxprojection; { local box correction } |
34 |
|
|
35 |
|
src_theta = Acos(Dz) / DEGREE; { 0-180 } |
36 |
< |
src_phi = mod( atan2(Dy, Dx) / DEGREE, 360 ); { 0-360 } |
36 |
> |
src_phi = mod( atan2(Dy, -Dx) / DEGREE, 360 ); { 0-360 } |
37 |
|
{ bilateral symmetry } |
38 |
|
src_phi2 = tri( src_phi, 180 ); { 0-180 } |
39 |
|
{ quadrilateral symmetry } |