API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Sep 28, 2012 Phobos / (Mars) 401 SATELLITE PHYSICAL PROPERTIES: Radius (km) = 13.1 x11.1 x9.3 Density (g cm^-3) = 1.90 +- 0.08 Mass (10^20 kg ) = 1.08 (10^-4) Geometric Albedo = 0.06 (+- 0.1) V(1,0) = +11.8 SATELLITE ORBITAL DATA: Semi-major axis, a (km) = 9.3772(10^3) Orbital period = 0.319 d Eccentricity, e = 0.0151 Rotational period = Synchronous Inclination, i (deg) = 1.082 *******************************************************************************