******************************************************************************* JPL/HORIZONS 90377 Sedna (2003 VB12) 2024-Apr-27 23:48:21 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 Sat Apr 27 23:48:21 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. 1900-Jan-01 00:00:00.0000 TDB Stop time : A.D. 2500-Jan-01 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= 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 2415020.500000000 = A.D. 1900-Jan-01 00:00:00.0000 TDB EC= 8.495388100733219E-01 QR= 7.619182702691640E+01 IN= 1.192854575858782E+01 OM= 1.444017942668324E+02 W = 3.112840778231667E+02 Tp= 2479347.735167745501 N = 8.655046626017229E-05 MA= 3.544324478030039E+02 TA= 2.743011278517494E+02 A = 5.063885714584994E+02 AD= 9.365853158900824E+02 PR= 4.159422999730970E+06 2451544.500000000 = A.D. 2000-Jan-01 00:00:00.0000 TDB EC= 8.495441257258347E-01 QR= 7.619166552990866E+01 IN= 1.192852402200855E+01 OM= 1.444015533213333E+02 W = 3.112843776186506E+02 Tp= 2479347.656754461583 N = 8.654615484674871E-05 MA= 3.575937436903000E+02 TA= 3.103735565717600E+02 A = 5.064053889386201E+02 AD= 9.366191123473316E+02 PR= 4.159630206997280E+06 2488069.500000000 = A.D. 2100-Jan-01 00:00:00.0000 TDB EC= 8.495510049220533E-01 QR= 7.619151349170471E+01 IN= 1.192862549579007E+01 OM= 1.444005225840177E+02 W = 3.112873887218926E+02 Tp= 2479348.684961012565 N = 8.654047830745653E-05 MA= 7.547035047048184E-01 TA= 1.734159927375352E+01 A = 5.064275334789077E+02 AD= 9.366635534661107E+02 PR= 4.159903053932874E+06 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 8.495444832853031E-01 QR= 7.619165302423180E+01 IN= 1.192865024045042E+01 OM= 1.444004826254823E+02 W = 3.112874572948569E+02 Tp= 2479348.594314686488 N = 8.654586763832874E-05 MA= 3.915759618749799E+00 TA= 7.027237846717986E+01 A = 5.064065092987649E+02 AD= 9.366213655732979E+02 PR= 4.159644011016489E+06 2561117.500000000 = A.D. 2300-Jan-01 00:00:00.0000 TDB EC= 8.495426431423977E-01 QR= 7.619174116069429E+01 IN= 1.192863046230089E+01 OM= 1.444004124572486E+02 W = 3.112875497879122E+02 Tp= 2479348.522828298155 N = 8.654730521574537E-05 MA= 7.076884624458617E+00 TA= 9.571182629700768E+01 A = 5.064009015710990E+02 AD= 9.366100619815037E+02 PR= 4.159574918047314E+06 2597641.500000000 = A.D. 2400-Jan-01 00:00:00.0000 TDB EC= 8.495421436446168E-01 QR= 7.619176663025692E+01 IN= 1.192862276064394E+01 OM= 1.444003606372052E+02 W = 3.112875951319335E+02 Tp= 2479348.479896437377 N = 8.654769280680383E-05 MA= 1.023798796511222E+01 TA= 1.097365778358875E+02 A = 5.063993896755449E+02 AD= 9.366070127208329E+02 PR= 4.159556290005446E+06 2634166.500000000 = A.D. 2500-Jan-01 00:00:00.0000 TDB EC= 8.495419275373725E-01 QR= 7.619177233967241E+01 IN= 1.192861918287463E+01 OM= 1.444003220070212E+02 W = 3.112876237922634E+02 Tp= 2479348.451751828659 N = 8.654786954536580E-05 MA= 1.339917224305088E+01 TA= 1.187897355604704E+02 A = 5.063987002664673E+02 AD= 9.366056281932622E+02 PR= 4.159547795816034E+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 COMMAND = 'Sedna' TABLE_TYPE = 'ELEMENTS' START_TIME = '1900-01-01' STOP_TIME = '2500-01-01' STEP_SIZE = '100 years' CENTER = '@0' OUT_UNITS = 'AU-D'