******************************************************************************* JPL/HORIZONS (2017 OF201) 2025-Dec-12 17:54:06 Rec #:50310440 (+COV) Soln.date: 2025-Jul-03_00:00:08 # obs: 25 (2004-2018) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2455831.5 ! 2011-Sep-27.00 (TDB) Residual RMS= .046134 EC= .9505930959457484 QR= 45.16043239342015 TP= 2426354.9834308983 OM= 328.5292634453194 W= 338.2681282911799 IN= 16.19594737230442 A= 914.0510472753239 MA= 1.051294898221775 ADIST= 1782.941662157227 PER= 27635.28057 N= 3.5666E-5 ANGMOM= .161452148 DAN= 46.78075 DDN= 753.10463 L= 307.5837146 B= -5.927796 MOID= 44.15039825 TP= 1931-Jan-13.4834308983 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 3.49 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#2, OCC=2 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 17:54:06 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2017 OF201) {source: JPL#2} 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. 2050-May-05 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 : (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= 2455831.5 ! 2011-Sep-27.00 (TDB) Residual RMS= .046134 EC= .9505930959457484 QR= 45.16043239342015 TP= 2426354.9834308983 OM= 328.5292634453194 W= 338.2681282911799 IN= 16.19594737230442 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 6.775844613404512E+01 Y= 2.968361147021817E+01 Z= 3.520217657915301E+01 VX= 3.666028001044503E-04 VY= 2.034501695175812E-03 VZ= 1.620724494420167E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 3.49 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 ******************************************************************************* $$SOE 2460800.500000000 = A.D. 2025-May-05 00:00:00.0000 TDB EC= 9.457802182843569E-01 QR= 4.492218858112028E+01 IN= 1.620513845787450E+01 OM= 3.285917362641289E+02 W = 3.377299166975697E+02 Tp= 2426273.686331838835 N = 4.135619196355929E-05 MA= 1.427897533950520E+00 TA= 9.211372272111682E+01 A = 8.285202772802661E+02 AD= 1.612118365979412E+03 PR= 8.704863356790958E+06 $$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 = '2017 OF201' OUT_UNITS = 'AU-D' START_TIME = '2025-05-05' STEP_SIZE = '100 years' STOP_TIME = '2050-05-05' TABLE_TYPE = 'ELEMENTS'