******************************************************************************* JPL/HORIZONS (2006 RH120) 2024-May-22 19:24:27 Rec #:50041873 (+COV) Soln.date: 2022-Dec-20_14:42:34 # obs: 133 (2006-2007) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2454101.5 ! 2007-Jan-01.00 (TDB) Residual RMS= .53055 EC= .03744067182298642 QR= .9603646059202628 TP= 2454167.6067880942 OM= 323.0881705631016 W= 206.3169504727512 IN= .3093522132878884 A= .9977199096279007 MA= 294.6211657400694 ADIST= 1.035075213335539 PER= .9966 N= .988988214 ANGMOM= .017170429 DAN= 1.03092 DDN= .96397 L= 169.4047892 B= -.1371466 MOID= .00306037 TP= 2007-Mar-08.1067880942 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= .04583 H= 29.5 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 1.382036413997E-10 A2= -5.072741303593E-11 A3= -1.298995921388E-11 Non-standard or simulated/proxy model: ALN= 1. NK= 0. NM= 2. NN= 0. R0= 1. ASTEROID comments: 1: soln ref.= JPL#53, OCC=1 radar( 0 delay, 3 Dop.) 2: source=ORB; Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Wed May 22 19:24:27 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2006 RH120) {source: JPL#53} Center body name: Earth (399) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2007-Sep-17 00:00:00.0000 TDB Stop time : A.D. 2007-Sep-18 00:00:00.0000 TDB Step-size : 1440 minutes ******************************************************************************* 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.240522.p240815 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-22. PREDICTS-> 2024-AUG-14 Reference frame : Ecliptic of J2000.0 ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2454101.5 ! 2007-Jan-01.00 (TDB) Residual RMS= .53055 EC= .03744067182298642 QR= .9603646059202628 TP= 2454167.6067880942 OM= 323.0881705631016 W= 206.3169504727512 IN= .3093522132878884 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.716343206734086E-01 Y= 8.868999199857666E-01 Z= 3.884674209749523E-01 VX=-1.708782257536563E-02 VY=-3.313193113386959E-03 VZ=-1.513976544398608E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= .04583 H= 29.5 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 1.382036413997E-10 A2= -5.072741303593E-11 A3= -1.298995921388E-11 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 ******************************************************************************* $$SOE 2454360.500000000 = A.D. 2007-Sep-17 00:00:00.0000 TDB EC= 9.358404388814539E-01 QR= 1.610015037093040E-02 IN= 4.210441595343547E+01 OM= 3.328351052950328E+02 W = 2.641749721643099E+02 Tp= 2454303.881986830384 N = 1.358827475290389E-02 MA= 7.693411189092532E-01 TA= 5.577421757379629E+01 A = 2.509392223114282E-01 AD= 4.857782942519260E-01 PR= 2.649342955941231E+04 2454361.500000000 = A.D. 2007-Sep-18 00:00:00.0000 TDB EC= 1.013158718703731E+00 QR= 1.655359061213073E-02 IN= 4.156756384576775E+01 OM= 3.335090045968302E+02 W = 2.680272368671583E+02 Tp= 2454308.228032562882 N = 1.210595987606982E-03 MA= 6.449083003149163E-02 TA= 5.215072698826249E+01 A =-1.257994109064482E+00 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 $$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 CENTER = '@399' COMMAND = '2006 RH120' OUT_UNITS = 'AU-D' START_TIME = '2007-Sep-17' STEP_SIZE = '1 day' STOP_TIME = '2007-Sep-18' TABLE_TYPE = 'ELEMENTS'