JPL planetary ephemeris items. More...

Detailed Description

Defines symbolic constants for native and derived JPL planetary ephemeris items. All items defined by DE438t/LE438t are currently supported.

JPLEphemerisItem::Unknown	Unknown ephemeris item.
JPLEphemerisItem::Mercury
JPLEphemerisItem::Venus
JPLEphemerisItem::EarthMoonBarycenter
JPLEphemerisItem::Mars
JPLEphemerisItem::Jupiter
JPLEphemerisItem::Saturn
JPLEphemerisItem::Uranus
JPLEphemerisItem::Neptune
JPLEphemerisItem::Pluto
JPLEphemerisItem::Moon	Geocentric Moon.
JPLEphemerisItem::Sun
JPLEphemerisItem::Nutations	Nutation angles dpsi and deps.
JPLEphemerisItem::LunarLibration	Lunar libration angles phi, theta and psi.
JPLEphemerisItem::LunarMantleVelocity	Lunar mantle velocity components omega_x, omega_y and omega_z.
JPLEphemerisItem::TT_TDB	Difference TT-TDB at the geocenter in seconds
JPLEphemerisItem::NumberOfNativeItems	Number of items directly available in JPL DE/LE ASCII files.
JPLEphemerisItem::NumberOfRequiredItems	Number of required items in a valid JPL DE/LE ASCII file.
JPLEphemerisItem::Earth	Geocenter relative to the solar system barycenter, synthesized from Earth-Moon barycenter and geocentric Moon.
JPLEphemerisItem::SSBMoon	Moon relative to the solar system barycenter, synthesized from Earth-Moon barycenter and geocentric Moon.