+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   230965 (2004 XA192) Classification: TransNeptunian Object          SPK-ID: 2230965 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO214877 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2528330 n/a   a 47.4846094 n/a AU q 35.4789332 n/a AU i 38.09523 n/a deg node 328.70515 n/a deg peri 131.90201 n/a deg M 353.84305 n/a deg tp 2458444.5450975 (2018-Nov-22.04509750) n/a JED period 119516.3571414 327.22 n/a n/a d yr n 0.00301214 n/a deg/d Q 59.4902856 n/a AU   Orbit Determination Parameters    # obs. used (total)      28      first obs. used      1989-??-??      last obs. used      2011-11-22      # oppositions      7      planetary ephem.      DE403      condition code      2      fit RMS      0.42      data source      MPC:mpu      producer      MPCLINUX   Additional Information  T_jup = 4.710   MPC Centaur  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 4.0 mag n/a MPO214877   rotation period rot_per 7.88 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on fragmentary lightcurve(s), may be completely wrong. Published Reference List: [Thirouin, A.; Ortiz, J.L.; Campo Bagatin, A.; Pravec, P.; et al. (2012) MNRAS 424, 3156-3177.] 230965 (2004 XA192)          Discovered 2004-Dec-12 by Palomar at Palomar (644) Reference: 20100130/Numbers.arc Last Updated: 2010-02-01 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-18 21:08 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin