******************************************************************************* JPL/HORIZONS 90377 Sedna (2003 VB12) 2024-May-02 23:23:39 Rec #: 90377 (+COV) Soln.date: 2024-Apr-16_07:52:35 # obs: 539 (1990-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457983.5 ! 2017-Aug-18.00 (TDB) Residual RMS= .093867 EC= .8438779805311616 QR= 76.0597257185749 TP= 2479559.4597022175 OM= 144.4607791912206 W= 311.5900355154116 IN= 11.92895319676847 A= 487.1812828026878 MA= 358.0224006791369 ADIST= 898.3028398868007 PER= 10753.35774 N= 9.1658E-5 ANGMOM= .203715891 DAN= 89.89116 DDN= 318.85639 L= 96.672585 B= -8.893175100000001 MOID= 75.08709717 TP= 2076-Sep-12.9597022175 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 10.273 H= 1.5 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#42, OCC=1 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu May 2 23:23:39 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 90377 Sedna (2003 VB12) {source: JPL#42} Center body name: Solar System Barycenter (0) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2016-Jan-01 00:00:00.0000 TDB Stop time : A.D. 2020-Jan-01 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= 2457983.5 ! 2017-Aug-18.00 (TDB) Residual RMS= .093867 EC= .8438779805311616 QR= 76.0597257185749 TP= 2479559.4597022175 OM= 144.4607791912206 W= 311.5900355154116 IN= 11.92895319676847 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 4.687788227372414E+01 Y= 7.036772893745980E+01 Z= 1.129538098354908E+01 VX=-2.409714482710369E-03 VY= 5.745274591925052E-04 VZ= 4.400467165865281E-04 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 10.273 H= 1.5 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 ******************************************************************************* $$SOE 2457388.500000000 = A.D. 2016-Jan-01 00:00:00.0000 TDB EC= 8.495436089609510E-01 QR= 7.619168691703661E+01 IN= 1.192852322011801E+01 OM= 1.444014941216338E+02 W = 3.112844028135790E+02 Tp= 2479347.647201731335 N = 8.654656429150103E-05 MA= 3.580995112549189E+02 TA= 3.191611187252491E+02 A = 5.064037917622391E+02 AD= 9.366158966074416E+02 PR= 4.159610528125290E+06 2457754.500000000 = A.D. 2017-Jan-01 00:00:00.0000 TDB EC= 8.495434788111146E-01 QR= 7.619168472764036E+01 IN= 1.192852323609140E+01 OM= 1.444014882203632E+02 W = 3.112844152520070E+02 Tp= 2479347.651049700100 N = 8.654668032048321E-05 MA= 3.581311844589897E+02 TA= 3.197454126795788E+02 A = 5.064033391546255E+02 AD= 9.366149935816105E+02 PR= 4.159604951535014E+06 2458119.500000000 = A.D. 2018-Jan-01 00:00:00.0000 TDB EC= 8.495434066934570E-01 QR= 7.619168119754778E+01 IN= 1.192852327189892E+01 OM= 1.444014807697811E+02 W = 3.112844315345500E+02 Tp= 2479347.655493243132 N = 8.654674856133632E-05 MA= 3.581627721641054E+02 TA= 3.203320874546052E+02 A = 5.064030729601430E+02 AD= 9.366144647227383E+02 PR= 4.159601671746979E+06 2458484.500000000 = A.D. 2019-Jan-01 00:00:00.0000 TDB EC= 8.495434227537980E-01 QR= 7.619167798606013E+01 IN= 1.192852332905505E+01 OM= 1.444014724884572E+02 W = 3.112844468492808E+02 Tp= 2479347.658546269871 N = 8.654674017574632E-05 MA= 3.581943616380506E+02 TA= 3.209227299514220E+02 A = 5.064031056707028E+02 AD= 9.366145333553454E+02 PR= 4.159602074774454E+06 2458849.500000000 = A.D. 2020-Jan-01 00:00:00.0000 TDB EC= 8.495434862617285E-01 QR= 7.619167677104201E+01 IN= 1.192852339849068E+01 OM= 1.444014647820284E+02 W = 3.112844564207104E+02 Tp= 2479347.659008733928 N = 8.654668744872569E-05 MA= 3.582259522389969E+02 TA= 3.215173336704272E+02 A = 5.064033113487021E+02 AD= 9.366149459263621E+02 PR= 4.159604608937584E+06 $$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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF TABLE_TYPE = ELEMENTS OUT_UNITS = AU-D COMMAND = "Sedna" CENTER = '0' START_TIME = 2016-01-01 STOP_TIME = 2020-01-01 STEP_SIZE = 1Y