THIS SUBROUTINE COMPUTES FUNDAMENTAL ARGUMENTS (MEAN ELEMENTS) OF THE SUN AND MOON. SEE SIMON ET AL. (1994) ASTRONOMY AND ASTROPHYSICS 282, 663-683, ESPECIALLY SECTIONS 3.4-3.5.
T = TDB TIME IN JULIAN CENTURIES SINCE J2000.0 (IN)
EL = MEAN ANOMALY OF THE MOON IN RADIANS
AT DATE TJD (OUT)
ELP = MEAN ANOMALY OF THE SUN IN RADIANS
AT DATE TJD (OUT)
F = MEAN LONGITUDE OF THE MOON MINUS MEAN LONGITUDE
OF THE MOON'S ASCENDING NODE IN RADIANS
AT DATE TJD (OUT)
D = MEAN ELONGATION OF THE MOON FROM THE SUN IN
RADIANS AT DATE TJD (OUT)
OMEGA = MEAN LONGITUDE OF THE MOON'S ASCENDING NODE
IN RADIANS AT DATE TJD (OUT)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
real(kind=wp) | :: | t | ||||
real(kind=wp) | :: | el | ||||
real(kind=wp) | :: | elp | ||||
real(kind=wp) | :: | f | ||||
real(kind=wp) | :: | d | ||||
real(kind=wp) | :: | omega |