Moon librations
implements
the Moon libration angles for angles
= moonLibration(ephemerisTime
)ephemerisTime
,
expressed in Julian days.
The function uses the Chebyshev coefficients that the NASA Jet Propulsion Laboratory provides.
This function requires that you download ephemeris data with
the Add-On Explorer. For more information, see aeroDataPackage
.
uses
the angles
= moonLibration(ephemerisTime
,ephemerisModel
)ephemerisModel
coefficients to implement
these values.
uses angles
= moonLibration(ephemerisTime
,ephemerisModel
,action
)action
to determine error reporting.
[1] Folkner, W. M., J. G. Williams, D. H. Boggs, “The Planetary and Lunar Ephemeris DE 421,” JPL Interplanetary Network Progress Report 24-178, 2009.
[2] Vallado, D. A., Fundamentals of Astrodynamics and Applications, McGraw-Hill, New York, 1997.
[3] Folkner, W. M. "Recent Developments in Planetary Ephemeris Observations." California Institute of Technology, Pasadena, California, 2010.