Quick Mean-Appt, no PM etc.
CALL sla_MAPQKZ (RM, DM, AMPRMS, RA, DA)
RM,DM | D | mean $\left[\phantom{\rule{0.3em}{0ex}}\alpha ,\delta \phantom{\rule{0.3em}{0ex}}\right]$ (radians) |
| ||
AMPRMS | D(21) | star-independent mean-to-apparent parameters: |
| ||
(1) |
| time interval for proper motion (Julian years) |
(2-4) |
| barycentric position of the Earth (AU) |
(5-7) |
| heliocentric direction of the Earth (unit vector) |
(8) |
| (gravitational radius of Sun)$\times 2/$(Sun-Earth distance) |
(9-11) |
| v: barycentric Earth velocity in units of c |
(12) |
| $\sqrt{1-{\left|\text{v}\right|}^{2}}$ |
(13-21) |
| precession-nutation $3\times 3$ matrix |
RA,DA | D | apparent $\left[\phantom{\rule{0.3em}{0ex}}\alpha ,\delta \phantom{\rule{0.3em}{0ex}}\right]$ (radians) |