******************************************************************************* Revised: April 12, 2021 Earth 399 GEOPHYSICAL PROPERTIES (revised May 9, 2022): Vol. Mean Radius (km) = 6371.01+-0.02 Mass x10^24 (kg)= 5.97219+-0.0006 Equ. radius, km = 6378.137 Mass layers: Polar axis, km = 6356.752 Atmos = 5.1 x 10^18 kg Flattening = 1/298.257223563 oceans = 1.4 x 10^21 kg Density, g/cm^3 = 5.51 crust = 2.6 x 10^22 kg J2 (IERS 2010) = 0.00108262545 mantle = 4.043 x 10^24 kg g_p, m/s^2 (polar) = 9.8321863685 outer core = 1.835 x 10^24 kg g_e, m/s^2 (equatorial) = 9.7803267715 inner core = 9.675 x 10^22 kg g_o, m/s^2 = 9.82022 Fluid core rad = 3480 km GM, km^3/s^2 = 398600.435436 Inner core rad = 1215 km GM 1-sigma, km^3/s^2 = 0.0014 Escape velocity = 11.186 km/s Rot. Rate (rad/s) = 0.00007292115 Surface area: Mean sidereal day, hr = 23.9344695944 land = 1.48 x 10^8 km Mean solar day 2000.0, s = 86400.002 sea = 3.62 x 10^8 km Mean solar day 1820.0, s = 86400.0 Love no., k2 = 0.299 Moment of inertia = 0.3308 Atm. pressure = 1.0 bar Mean surface temp (Ts), K= 287.6 Volume, km^3 = 1.08321 x 10^12 Mean effect. temp (Te), K= 255 Magnetic moment = 0.61 gauss Rp^3 Geometric albedo = 0.367 Vis. mag. V(1,0)= -3.86 Solar Constant (W/m^2) = 1367.6 (mean), 1414 (perihelion), 1322 (aphelion) HELIOCENTRIC ORBIT CHARACTERISTICS: Obliquity to orbit, deg = 23.4392911 Sidereal orb period = 1.0000174 y Orbital speed, km/s = 29.79 Sidereal orb period = 365.25636 d Mean daily motion, deg/d = 0.9856474 Hill's sphere radius = 234.9 ******************************************************************************* Only TDB is allowed for osculating element TIME_TYPE !$$SOF COMMAND = '399' CENTER = '@Sun' OBJ_DATA = 'yes' MAKE_EPHEM = 'yes' TABLE_TYPE = 'ELEMENTS' REF_PLANE = 'ECLIPTIC' COORD_TYPE = 'GEODETIC' START_TIME = '2021/1/4 9:44:19' STOP_TIME = '2021/1/5 9:44:19' STEP_SIZE = '1h' QUANTITIES = '1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46' FIXED_QUANTITIES = 'A' REF_SYSTEM = 'J2000' OUT_UNITS = 'KM-S' VECT_TABLE = '3' VECT_CORR = 'NONE' CAL_FORMAT = 'CAL' ANG_FORMAT = 'DEG' APPARENT = 'AIRLESS' TIME_TYPE = 'UTC' TIME_DIGITS = 'MINUTES' RANGE_UNITS = 'AU' SUPPRESS_RANGE_RATE = 'no' SKIP_DAYLT = 'no' EXTRA_PREC = 'yes' CSV_FORMAT = 'yes' VEC_LABELS = 'yes' ELM_LABELS = 'yes' TP_TYPE = 'ABSOLUTE' R_T_S_ONLY = 'NO' CA_TABLE_TYPE = 'STANDARD'