******************************************************************************* JPL/HORIZONS 90377 Sedna (2003 VB12) 2025-Dec-12 21:15:13 Rec #: 90377 (+COV) Soln.date: 2025-Nov-27_17:30:19 # obs: 637 (1990-2025) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458328.5 ! 2018-Jul-29.00 (TDB) Residual RMS= .094813 EC= .8414696730157953 QR= 76.1093494569478 TP= 2479541.0357321822 OM= 144.3871608549184 W= 311.5806110275184 IN= 11.92939822998816 A= 480.093310250543 MA= 358.0124952322913 ADIST= 884.0772710441381 PER= 10519.53842 N= 9.3695E-5 ANGMOM= .203649211 DAN= 89.93044 DDN= 317.41929 L= 96.58956670000001 B= -8.8948135 MOID= 75.13939667 TP= 2076-Aug-25.5357321822 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 10.273 H= 1.49 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#49, OCC=1 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 21:15:13 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: 90377 Sedna (2003 VB12) {source: JPL#49} 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 : 50 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= 2458328.5 ! 2018-Jul-29.00 (TDB) Residual RMS= .094813 EC= .8414696730157953 QR= 76.1093494569478 TP= 2479541.0357321822 OM= 144.3871608549184 W= 311.5806110275184 IN= 11.92939822998816 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 4.604567922894311E+01 Y= 7.056430371298931E+01 Z= 1.144700862982662E+01 VX=-2.414853542542624E-03 VY= 5.650839325810575E-04 VZ= 4.390461018983610E-04 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 10.273 H= 1.49 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 2415020.500000000 = A.D. 1900-Jan-01 00:00:00.0000 TDB EC= 8.495481118168762E-01 QR= 7.619165302363807E+01 IN= 1.192854575823553E+01 OM= 1.444019306494394E+02 W = 3.112843129158114E+02 Tp= 2479347.847876097076 N = 8.654273682173999E-05 MA= 3.544329352623184E+02 TA= 2.743009438673475E+02 A = 5.064187225812724E+02 AD= 9.366457921389068E+02 PR= 4.159794492535231E+06 2433282.500000000 = A.D. 1950-Jan-01 00:00:00.0000 TDB EC= 8.495486280230622E-01 QR= 7.619154517949210E+01 IN= 1.192853718417786E+01 OM= 1.444018711642884E+02 W = 3.112844756052712E+02 Tp= 2479347.862408689689 N = 8.654247516744874E-05 MA= 3.560133895176664E+02 TA= 2.889335050046959E+02 A = 5.064197433252474E+02 AD= 9.366479414710028E+02 PR= 4.159807069343065E+06 2451544.500000000 = A.D. 2000-Jan-01 00:00:00.0000 TDB EC= 8.495534274017770E-01 QR= 7.619149152990494E+01 IN= 1.192852402184532E+01 OM= 1.444016897065225E+02 W = 3.112846127055583E+02 Tp= 2479347.769462644123 N = 8.653842556319587E-05 MA= 3.575939488351935E+02 TA= 3.103731943704254E+02 A = 5.064355419606599E+02 AD= 9.366795923914146E+02 PR= 4.160001729371712E+06 2469807.500000000 = A.D. 2050-Jan-01 00:00:00.0000 TDB EC= 8.495471898730067E-01 QR= 7.619140025221442E+01 IN= 1.192854136629197E+01 OM= 1.444012527761640E+02 W = 3.112854553506272E+02 Tp= 2479347.994999648072 N = 8.654396297556961E-05 MA= 3.591743277539819E+02 TA= 3.410798222316789E+02 A = 5.064139392803850E+02 AD= 9.366364783085555E+02 PR= 4.159735556616744E+06 2488069.500000000 = A.D. 2100-Jan-01 00:00:00.0000 TDB EC= 8.495603067817833E-01 QR= 7.619133948622655E+01 IN= 1.192862549614548E+01 OM= 1.444006589647076E+02 W = 3.112876238159583E+02 Tp= 2479348.797664314043 N = 8.653274901526790E-05 MA= 7.546263464507742E-01 TA= 1.734148009800347E+01 A = 5.064576898312929E+02 AD= 9.367240401763593E+02 PR= 4.160274625465571E+06 2506331.500000000 = A.D. 2150-Jan-01 00:00:00.0000 TDB EC= 8.495595658701572E-01 QR= 7.619132668981155E+01 IN= 1.192864930082779E+01 OM= 1.444006275265610E+02 W = 3.112875841300753E+02 Tp= 2479348.753644427285 N = 8.653341007346948E-05 MA= 2.334909055295194E+00 TA= 4.845441354668143E+01 A = 5.064551104927801E+02 AD= 9.367188942957487E+02 PR= 4.160242843710298E+06 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 8.495537852201757E-01 QR= 7.619147901840726E+01 IN= 1.192865024008345E+01 OM= 1.444006190071070E+02 W = 3.112876923892777E+02 Tp= 2479348.707019232679 N = 8.653813814790889E-05 MA= 3.915400145443193E+00 TA= 7.027244639239598E+01 A = 5.064366632946688E+02 AD= 9.366818475709304E+02 PR= 4.160015545801282E+06 2542855.500000000 = A.D. 2250-Jan-01 00:00:00.0000 TDB EC= 8.495535839551743E-01 QR= 7.619152060929409E+01 IN= 1.192864091274693E+01 OM= 1.444005959366995E+02 W = 3.112877596947686E+02 Tp= 2479348.714565564413 N = 8.653824094400089E-05 MA= 5.495765499504165E+00 TA= 8.514756342024126E+01 A = 5.064362622409876E+02 AD= 9.366810038726810E+02 PR= 4.160010604247860E+06 2561117.500000000 = A.D. 2300-Jan-01 00:00:00.0000 TDB EC= 8.495519451051194E-01 QR= 7.619156715438396E+01 IN= 1.192863046192071E+01 OM= 1.444005488384912E+02 W = 3.112877848838238E+02 Tp= 2479348.635534707922 N = 8.653957567155127E-05 MA= 7.076242833970971E+00 TA= 9.571181263372505E+01 A = 5.064310549419835E+02 AD= 9.366705427295831E+02 PR= 4.159946443073966E+06 2579379.500000000 = A.D. 2350-Jan-01 00:00:00.0000 TDB EC= 8.495517879019264E-01 QR= 7.619156265154542E+01 IN= 1.192862653000493E+01 OM= 1.444005261397668E+02 W = 3.112877974493108E+02 Tp= 2479348.624410803895 N = 8.653971898101232E-05 MA= 8.656643862913649E+00 TA= 1.035956921451729E+02 A = 5.064304958431679E+02 AD= 9.366694290347904E+02 PR= 4.159939554217730E+06 2597641.500000000 = A.D. 2400-Jan-01 00:00:00.0000 TDB EC= 8.495514456160427E-01 QR= 7.619159263154155E+01 IN= 1.192862276009322E+01 OM= 1.444004970165105E+02 W = 3.112878302357757E+02 Tp= 2479348.592603750527 N = 8.653996323408943E-05 MA= 1.023706385692498E+01 TA= 1.097364647818973E+02 A = 5.064295429326241E+02 AD= 9.366674932337065E+02 PR= 4.159927813075270E+06 2615904.500000000 = A.D. 2450-Jan-01 00:00:00.0000 TDB EC= 8.495513264735769E-01 QR= 7.619158089781433E+01 IN= 1.192862090380760E+01 OM= 1.444004785975927E+02 W = 3.112878339584435E+02 Tp= 2479348.579311014153 N = 8.654008602368845E-05 MA= 1.181756112346880E+01 TA= 1.146873678026322E+02 A = 5.064290638922313E+02 AD= 9.366665468866482E+02 PR= 4.159921910656039E+06 2634166.500000000 = A.D. 2500-Jan-01 00:00:00.0000 TDB EC= 8.495512295528668E-01 QR= 7.619159835571551E+01 IN= 1.192861918172297E+01 OM= 1.444004583798306E+02 W = 3.112878589145968E+02 Tp= 2479348.564463234972 N = 8.654013990520535E-05 MA= 1.339796580118671E+01 TA= 1.187895365715778E+02 A = 5.064288536840432E+02 AD= 9.366661090123711E+02 PR= 4.159919320610506E+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 = 'Sedna' OUT_UNITS = 'AU-D' START_TIME = '1900-01-01' STEP_SIZE = '50 years' STOP_TIME = '2500-01-01' TABLE_TYPE = 'ELEMENTS'