Where can I find the best values to use for standard gravitational parameters of solar system bodies for numerical simulation experiments?
Here are two sets I've put together. The first set is from Wikipedia, the second set is from the a JPL progress report listing the masses used for the calculation of the DE421 ephemeris.
In addition to the Sun and planets, I've included Earth's Moon, and the three largest asteroids. I am not sure how I should handle the masses of the larger moons of the large planets; I assume they are not counted here and I should deal with them separately.
Is there a significantly better "master table" than the DE430/431 values, or is that about as good as it gets?
NOTE: units are MKS Wikipedia: JPL: DE421 JPL: DE430/431 (1) unless (2) unless (6) unless otherwise noted otherwise noted otherwise noted ----------------- -------------------- -------------------- Sun 1.32712440018E+20 1.32712440040944E+20 1.32712440040944E+20 Mercury 2.2032E+13 2.203209E+13 2.203178E+13 Venus 3.24859E+14 3.24858592E+14 3.24858592E+14 Earth 3.986004418E+14 3.98600436233E+14 3.98600435436E+14 Moon 4.9048695E+12 4.902800076E+12 4.902800066E+12 Mars 4.282837E+13 4.2828375214E+13 4.2828375214E+13 Ceres 6.26325E+10 6.2178E+10 6.28093938E+10 Pallas 2.11E+20*G(4,5) 1.3402E+10 1.3923011E+10 Vesta 2.59076E+20*G(3,5) 1.7630E+10 1.7288009E+10 Jupiter 1.26686534E+17 1.267127648E+17 1.267127648E+17 Saturn 3.7931187E+16 3.79405852E+16 3.79405852E+16 Uranus 5.793939E+15 5.7945486E+15 5.7945486E+15 Neptune 6.836529E+15 6.836535E+15 6.83652719958E+15 G = 6.67408E-11 (5)
- (1) Wikipedia Standard Gravitational Parameter
- (2) The Planetary and Lunar Ephemeris DE 421, IPN Progress Report 42-178 (August 2009)
- (3) Wikipedia 4 Vesta
- (4) Wikipedia 2 Pallas
- (5) Wikipedia Gravitational Constant
- (6) The Planetary and Lunar Ephemeris DE 430 and 431, IPN Progress Report 42-196 (February 2014)