./
sam_ll_to_ab.pro
top source sam_ll_to_ab
utility
sam_ll_to_ab, jd, lat_, lon_, alpha=alpha, beta=beta
Given a time, heliocentric latitude and longitude of point on Sun, calculate the corresponding alpha angle, and beta angle from the center of the solar disk. Both take into account B0 "nodding" of Sun
Parameters
- jd in required
Julian Date of observation, UTC, TAI, TT, doesn't matter. This function is not accurate enough to differentiate.
- lat_ in required
Heliocentric latitude in degrees
- lon_ in required
Heliocentric longitude in degrees, 0deg through sub-earth point
Keywords
- alpha out required
Horizontal angle from center of solar disk, arcmin, positive east "left" on published sam images
- beta out required
Vertical angle from center of solar disk, arcmin, positive north "up" on published sam images
File attributes
Modification date: | Tue Sep 11 20:48:09 2012 |
Lines: | 49 |
Docformat: | rst rst |