******************************************************************************* JPL/HORIZONS (2020 CD3) 2024-May-03 00:24:44 Rec #:50539946 (+COV) Soln.date: 2021-Jun-25_15:07:42 # obs: 128 (2018-2020) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458914.5 ! 2020-Mar-06.00 (TDB) Residual RMS= .078773 EC= .03494529757096312 QR= .9863971818171792 TP= 2458866.3996462021 OM= 134.7432090092998 W= 342.2597100247675 IN= .7388576324362984 A= 1.022115305313184 MA= 45.87779192987005 ADIST= 1.057833428809189 PER= 1.03338 N= .953793232 ANGMOM= .017380651 DAN= .98798 DDN= 1.05602 L= 117.0043016 B= -.2251264 MOID= .00224417 TP= 2020-Jan-17.8996462021 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 31.74 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. Non-default Earth gravity model (EOBL_LIM= au): EOBL_LIM= 0.100 EOBL_MOD = 4x4 Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 1.356929074973E-10 A2= 0. A3= 0. Non-standard or simulated/proxy model: ALN= 1. NK= 0. NM= 2. NN= 0. R0= 1. ASTEROID comments: 1: soln ref.= JPL#27, OCC=0 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri May 3 00:24:44 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2020 CD3) {source: JPL#27} Center body name: Earth (399) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2022-Aug-09 00:00:00.0000 TDB Stop time : A.D. 2100-Jan-01 00:00:00.0000 TDB Step-size : 100 calendar years ******************************************************************************* Center geodetic : 0.0, 0.0, 0.0 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c} Keplerian GM : 8.8876924467071033E-10 au^3/d^2 Small perturbers: Yes {source: SB441-N16} Output units : AU-D, deg, Julian Day Number (Tp) Calendar mode : Mixed Julian/Gregorian Output type : GEOMETRIC osculating elements Output format : 10 EOP file : eop.240502.p240726 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-02. PREDICTS-> 2024-JUL-25 Reference frame : Ecliptic of J2000.0 ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2458914.5 ! 2020-Mar-06.00 (TDB) Residual RMS= .078773 EC= .03494529757096312 QR= .9863971818171792 TP= 2458866.3996462021 OM= 134.7432090092998 W= 342.2597100247675 IN= .7388576324362984 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-9.675822914533228E-01 Y= 2.212974108216997E-01 Z= 1.031890496759188E-01 VX=-4.692966798948430E-03 VY=-1.547085528646655E-02 VZ=-6.494577482405959E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 31.74 G= .150 B-V= n.a. Non-default Earth gravity model (EOBL_LIM= au): EOBL_LIM= 0.100 EOBL_MOD = 4x4 Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 1.356929074973E-10 A2= 0. A3= 0. Non-standard or simulated/proxy model: ALN= 1. NK= 0. NM= 2. NN= 0. R0= 1. ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2459800.500000000 = A.D. 2022-Aug-09 00:00:00.0000 TDB EC= 5.890138037498426E+04 QR= 5.684869159846978E-01 IN= 1.094974136460019E+00 OM= 9.324877591341188E+00 W = 1.997407015369157E+02 Tp= 2459796.863574045245 N = 5.696571856984191E+04 MA= 2.071516175478698E+05 TA= 3.512635028048775E+00 A =-9.651667992048165E-06 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 $$EOE ******************************************************************************* TIME Barycentric Dynamical Time ("TDB" or T_eph) output was requested. This continuous coordinate time is equivalent to the relativistic proper time of a clock at rest in a reference frame co-moving with the solar system barycenter but outside the system's gravity well. It is the independent variable in the solar system relativistic equations of motion. TDB runs at a uniform rate of one SI second per second and is independent of irregularities in Earth's rotation. CALENDAR SYSTEM Mixed calendar mode was active such that calendar dates after AD 1582-Oct-15 (if any) are in the modern Gregorian system. Dates prior to 1582-Oct-5 (if any) are in the Julian calendar system, which is automatically extended for dates prior to its adoption on 45-Jan-1 BC. The Julian calendar is useful for matching historical dates. The Gregorian calendar more accurately corresponds to the Earth's orbital motion and seasons. A "Gregorian-only" calendar mode is available if such physical events are the primary interest. REFERENCE FRAME AND COORDINATES Ecliptic at the standard reference epoch Reference epoch: J2000.0 X-Y plane: adopted Earth orbital plane at the reference epoch Note: IAU76 obliquity of 84381.448 arcseconds wrt ICRF X-Y plane X-axis : ICRF Z-axis : perpendicular to the X-Y plane in the directional (+ or -) sense of Earth's north pole at the reference epoch. Symbol meaning [1 au= 149597870.700 km, 1 day= 86400.0 s]: JDTDB Julian Day Number, Barycentric Dynamical Time EC Eccentricity, e QR Periapsis distance, q (au) IN Inclination w.r.t X-Y plane, i (degrees) OM Longitude of Ascending Node, OMEGA, (degrees) W Argument of Perifocus, w (degrees) Tp Time of periapsis (Julian Day Number) N Mean motion, n (degrees/day) MA Mean anomaly, M (degrees) TA True anomaly, nu (degrees) A Semi-major axis, a (au) AD Apoapsis distance (au) PR Sidereal orbit period (day) ABERRATIONS AND CORRECTIONS Geometric osculating elements have NO corrections or aberrations applied. Computations by ... Solar System Dynamics Group, Horizons On-Line Ephemeris System 4800 Oak Grove Drive, Jet Propulsion Laboratory Pasadena, CA 91109 USA General site: https://ssd.jpl.nasa.gov/ Mailing list: https://ssd.jpl.nasa.gov/email_list.html System news : https://ssd.jpl.nasa.gov/horizons/news.html User Guide : https://ssd.jpl.nasa.gov/horizons/manual.html Connect : browser https://ssd.jpl.nasa.gov/horizons/app.html#/x API https://ssd-api.jpl.nasa.gov/doc/horizons.html command-line telnet ssd.jpl.nasa.gov 6775 e-mail/batch https://ssd.jpl.nasa.gov/ftp/ssd/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '2020 CD3' TABLE_TYPE = 'ELEMENTS' START_TIME = '2022-Aug-09' STOP_TIME = '2100-01-01' STEP_SIZE = '100 years' CENTER = '@399' OUT_UNITS = 'AU-D'