******************************************************************************* JPL/HORIZONS 55636 (2002 TX300) 2025-Dec-12 17:48:58 Rec #: 55636 (+COV) Soln.date: 2025-Nov-27_13:52:32 # obs: 1696 (1954-2025) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458374.5 ! 2018-Sep-13.00 (TDB) Residual RMS= .097732 EC= .1246806132975114 QR= 37.72574651941508 TP= 2436174.589702155 OM= 324.5268406111056 W= 338.588125647703 IN= 25.8490412853701 A= 43.09940701934624 MA= 77.33006069311897 ADIST= 48.47306751927739 PER= 282.95355 N= .00348335 ANGMOM= .112050801 DAN= 38.01663 DDN= 48.00116 L= 305.0888976 B= -9.1587797 MOID= 36.72280121 TP= 1957-Dec-02.0897021550 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 8.12 H= 3.5 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#54, OCC=0 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 17:48:59 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: 55636 (2002 TX300) {source: JPL#54} Center body name: Solar System Barycenter (0) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2025-May-05 00:00:00.0000 TDB Stop time : A.D. 2025-May-06 00:00:00.0000 TDB Step-size : 1 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 : (undefined) Keplerian GM : 2.9630927493968080E-04 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 Reference frame : Ecliptic of J2000.0 ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2458374.5 ! 2018-Sep-13.00 (TDB) Residual RMS= .097732 EC= .1246806132975114 QR= 37.72574651941508 TP= 2436174.589702155 OM= 324.5268406111056 W= 338.588125647703 IN= 25.8490412853701 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 3.266826676685630E+01 Y= 1.231136755800888E+01 Z= 2.437553425697227E+01 VX=-1.298380077512846E-03 VY= 1.858306274596464E-03 VZ= 1.376450937610269E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 8.12 H= 3.5 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2460800.500000000 = A.D. 2025-May-05 00:00:00.0000 TDB EC= 1.233144933308326E-01 QR= 3.791921464769992E+01 IN= 2.585340775305008E+01 OM= 3.245784173517403E+02 W = 3.403019591964191E+02 Tp= 2436521.396538525820 N = 3.467144919198133E-03 MA= 8.417917020913549E+01 TA= 9.831520513588697E+01 A = 4.325292748567064E+01 AD= 4.858664032364135E+01 PR= 1.038318294705891E+05 $$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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF CENTER = '@0' COMMAND = '55636' OUT_UNITS = 'AU-D' START_TIME = 'JD2460800.5' STEP_SIZE = '1y' STOP_TIME = 'JD2460801.5' TABLE_TYPE = 'ELEMENTS'