******************************************************************************* JPL/HORIZONS (2023 BU) 2024-May-06 00:23:40 Rec #:50653470 (+COV) Soln.date: 2024-Jan-14_06:22:19 # obs: 250 (10 days) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2459969.5 ! 2023-Jan-25.00 (TDB) Residual RMS= .62744 EC= .07135850720403294 QR= .9153635731512324 TP= 2460056.4022315005 OM= 306.5318106295966 W= 273.6017504988679 IN= 2.589558956781403 A= .9857017807757465 MA= 272.4781093570007 ADIST= 1.056039988400261 PER= .97865 N= 1.007130532 ANGMOM= .017035138 DAN= .97631 DDN= .9851 L= 220.1372332 B= -2.5844406 MOID= .00018829 TP= 2023-Apr-21.9022315005 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 29.7 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#22, OCC=1 radar( 2 delay, 0 Dop.) 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Mon May 6 00:23:40 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2023 BU) {source: JPL#22} Center body name: Sun (10) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2022-Oct-25 00:00:00.0000 TDB Stop time : A.D. 2023-Feb-25 00:00:00.0000 TDB Step-size : 4 calendar months ******************************************************************************* 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 : 695700.0, 695700.0, 695700.0 km {Equator_a, b, pole_c} Keplerian GM : 2.9591220828411951E-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= 2459969.5 ! 2023-Jan-25.00 (TDB) Residual RMS= .62744 EC= .07135850720403294 QR= .9153635731512324 TP= 2460056.4022315005 OM= 306.5318106295966 W= 273.6017504988679 IN= 2.589558956781403 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-5.585807332433314E-01 Y= 7.466856041216416E-01 Z= 3.255044782143706E-01 VX=-1.351305348446538E-02 VY=-9.562138899838682E-03 VZ=-4.996700265931551E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 29.7 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 ******************************************************************************* $$SOE 2459877.500000000 = A.D. 2022-Oct-25 00:00:00.0000 TDB EC= 6.298285568226158E-02 QR= 9.260495547886628E-01 IN= 2.349310885174027E+00 OM= 3.073527245412672E+02 W = 2.710451185496604E+02 Tp= 2460055.965759841725 N = 1.003168851129377E+00 MA= 1.809687087335264E+02 TA= 1.808556177067570E+02 A = 9.882952093293219E-01 AD= 1.050540863869981E+00 PR= 3.588628171565621E+02 2460000.500000000 = A.D. 2023-Feb-25 00:00:00.0000 TDB EC= 1.110841611045676E-01 QR= 9.840363892537696E-01 IN= 3.749019146046146E+00 OM= 1.254852637167600E+02 W = 3.557470284755896E+02 Tp= 2459966.551620246377 N = 8.462102911766273E-01 MA= 2.872746831645507E+01 TA= 3.567124572056156E+01 A = 1.107007374822496E+00 AD= 1.229978360391224E+00 PR= 4.254261662304201E+02 $$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 = '2023 BU' TABLE_TYPE = 'ELEMENTS' START_TIME = '2022-10-25' STOP_TIME = '2023-02-25' STEP_SIZE = '4 months' CENTER = '@Sun' OUT_UNITS = 'AU-D'