******************************************************************************* JPL/HORIZONS 307261 (2002 MS4) 2024-May-02 11:49:07 Rec #: 307261 (+COV) Soln.date: 2024-Feb-21_20:34:32 # obs: 485 (1954-2022) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458267.5 ! 2018-May-29.00 (TDB) Residual RMS= .070926 EC= .1397250139993081 QR= 36.08141317030623 TP= 2496593.826328489 OM= 215.904094404325 W= 214.0813529296298 IN= 17.66789422260964 A= 41.94172067938891 MA= 220.9304973470544 ADIST= 47.80202818847159 PER= 271.6299 N= .003628563 ANGMOM= .110312125 DAN= 46.5047 DDN= 36.85751 L= 68.71248900000001 B= -9.791986700000001 MOID= 35.11130142 TP= 2123-May-05.3263284890 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 3.62 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#22, OCC=1 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu May 2 11:49:07 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 307261 (2002 MS4) {source: JPL#22} Center body name: Solar System Barycenter (0) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2023-Feb-25 00:00:00.0000 TDB Stop time : A.D. 2023-Sep-13 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= 2458267.5 ! 2018-May-29.00 (TDB) Residual RMS= .070926 EC= .1397250139993081 QR= 36.08141317030623 TP= 2496593.826328489 OM= 215.904094404325 W= 214.0813529296298 IN= 17.66789422260964 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 8.281125157266370E+00 Y=-4.557752351152149E+01 Z=-5.679796262599059E+00 VX= 2.252813724483336E-03 VY= 5.488348116283405E-04 VZ= 4.991658551459920E-04 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 3.62 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 ******************************************************************************* $$SOE 2460000.500000000 = A.D. 2023-Feb-25 00:00:00.0000 TDB EC= 1.452757213502747E-01 QR= 3.567398630400999E+01 IN= 1.769307120346371E+01 OM= 2.160737416789778E+02 W = 2.145788649429892E+02 Tp= 2496405.067193297669 N = 3.657689654953395E-03 MA= 2.268433911840196E+02 TA= 2.161079439335334E+02 A = 4.173742011911370E+01 AD= 4.780085393421741E+01 PR= 9.842278431481277E+04 $$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 = '307261' TABLE_TYPE = 'ELEMENTS' START_TIME = 'JD2460000.5' STOP_TIME = 'JD2460200.5' STEP_SIZE = '1y' CENTER = '@0' OUT_UNITS = 'AU-D'