name & dimensionality |
kind |
in/out |
description |
|
|
|
|
iepoch |
DP |
IN |
epoch of the input astronomical coordinate system. |
oepoch |
DP |
IN |
epoch of the output astronomical coordinate system. |
isys(len=*) |
CHR |
IN |
input coordinate system, should be one of 'E'=Ecliptic, 'G'=Galactic, 'C'/'Q'=Celestial/eQuatorial. |
osys(len=*) |
CHR |
IN |
output coordinate system, same choice as above. |
psi |
DP |
OUT |
first Euler angle: rotation about the z-axis. |
theta |
DP |
OUT |
second Euler angle: rotation about the original
(unrotated) y-axis; |
phi |
DP |
OUT |
third Euler angle: rotation about the original (unrotated) z-axis; |