Azimuth
* From: N. Bowditch, American Practical Navigator,
U.S. Navy Hydrographic Office, 1966 Ed.
Transverse Mercator SRF
- in geodetic coordinates the origin is at (0, -p/2, 0)
- the longitude of the, origin is shown as -?/2 (90º W).
The projected meridians are curved in this system, and the direction of North is not the same as the Y direction.
The orange arrows depict the direction of North at several points along the projected meridian.