******************************************************************************* JPL/HORIZONS (2023 DZ2) 2024-May-04 09:22:30 Rec #:50654041 (+COV) Soln.date: 2023-Nov-27_08:32:39 # obs: 643 (72 days) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460023.5 ! 2023-Mar-20.00 (TDB) Residual RMS= .15616 EC= .5397615362638187 QR= .993845040789782 TP= 2460036.8616714543 OM= 187.8839082141277 W= 5.990171732774039 IN= .08157304056690141 A= 2.159413258774207 MA= 355.849874621235 ADIST= 3.324981476758632 PER= 3.17331 N= .310599268 ANGMOM= .021279799 DAN= .99575 DDN= 3.30382 L= 193.8740739 B= .008512799999999999 MOID= 6.897E-5 TP= 2023-Apr-02.3616714543 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 24.27 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#26, OCC=1 radar( 4 delay, 1 Dop.) 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sat May 4 09:22:30 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2023 DZ2) {source: JPL#26} Center body name: Sun (10) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2023-Apr-25 00:00:00.0000 TDB Stop time : A.D. 2023-May-25 00:00:00.0000 TDB Step-size : 2 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= 2460023.5 ! 2023-Mar-20.00 (TDB) Residual RMS= .15616 EC= .5397615362638187 QR= .993845040789782 TP= 2460036.8616714543 OM= 187.8839082141277 W= 5.990171732774039 IN= .08157304056690141 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.007182372404682E+00 Y= 3.984840181053018E-02 Z= 1.699542936794407E-02 VX= 1.202244981603124E-03 VY=-1.944400444405408E-02 VZ=-8.397196349846590E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 24.27 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 ******************************************************************************* $$SOE 2460059.500000000 = A.D. 2023-Apr-25 00:00:00.0000 TDB EC= 5.243917539793136E-01 QR= 9.909047670846400E-01 IN= 1.492096486768129E-01 OM= 1.863381071705930E+02 W = 1.018111550166416E+01 Tp= 2460039.020326639060 N = 3.277406124186576E-01 MA= 6.712020689461802E+00 TA= 2.472693551263677E+01 A = 2.083447407346973E+00 AD= 3.175990047609305E+00 PR= 1.098429631113687E+03 $$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 DZ2' TABLE_TYPE = 'ELEMENTS' START_TIME = '2023-04-25' STOP_TIME = '2023-05-25' STEP_SIZE = '2 months' CENTER = '@Sun' OUT_UNITS = 'AU-D'