Open Access
Table A.1
Comparison of DE430, DE440, and DE441
| DE430 | DE440 | DE441 | |
|---|---|---|---|
| Time Spans | 1550 to 2650 | 1550 to 2650 | −13 200 to +17 191 |
| Gravitational Bodies | Sun, 8 planets, Moon Pluto 343 main belt asteroids | Sun, 8 planets, Moon Pluto 343 main belt asteroids 30 Kuiper belt objects and a ring | same as DE440 |
| Point-mass Interaction | all gravitational bodies | all gravitational bodies | same as DE440 |
| Nonspherical Interaction | up to the second-degree zonal harmonic of the Sun up to the fourth-degree zonal harmonic of the Earth up to the sixth-degree zonal and tesseral harmonic of the Moon | up to the second-degree zonal harmonic of the Sun up to the fifth-degree zonal harmonic of the Earth up to the sixth-degree zonal and tesseral harmonic of the Moon | same as DE440 |
| Other Effects | effects on the Moon’s motion by Earth tides | effects on the Moon’s motion by Earth tides Lense-Thirring effect from the Sun’s angular momentum solar radiation pressure force on the Earth and Moon | same as DE440, but without damping between the lunar liquid core and solid mantle |
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