+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   230965 (2004 XA192) Classification: TransNeptunian Object          SPK-ID: 2230965 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2430363882228819 1.0752e-05   a 46.8507028955656 0.00079329 au q 35.46427727812402 9.8999e-05 au i 38.18534099213118 1.9242e-05 deg node 328.55238667 3.7903e-05 deg peri 132.0952420595261 0.0013585 deg M 2.269492558779113 0.00080193 deg tp 2458462.087813319125 (2018-Dec-09.58781332) 0.26078 TDB period 117131.2001781222 320.69 2.9749 0.008145 d yr n .003073476575434604 7.8061e-08 deg/d Q 58.23712851300717 0.00098608 au   Orbit Determination Parameters    # obs. used (total)      418      data-arc span      11461 days (31.38 yr)      first obs. used      1989-08-29      last obs. used      2021-01-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .39835      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:18:51   Additional Information  Earth MOID = 34.5901 au   Jupiter MOID = 30.744 au   T_jup = 4.687  [ hide covariance matrix ] Orbital Elements at Epoch 2457894.5 (2017-May-21.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .245662370727833 1.0766e-05   q 35.46568603681152 9.9484e-05 au tp 2458614.397435761614 (2019-May-10.89743576) 0.25785 TDB node 328.70716570021 3.8005e-05 deg peri 132.7695171507654 0.0013453 deg i 38.09855349101743 1.9198e-05 deg   Orbit Determination Parameters    # obs. used (total)      418      data-arc span      11461 days (31.38 yr)      first obs. used      1989-08-29      last obs. used      2021-01-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .39835      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:18:51   Additional Information  Jupiter MOID = 30.744 au   T_jup = 4.687  Orbit Covariance (6×6)   e q tp node peri i e 1.159083424809837E-10 1.035655526885391E-9 -3.192880823923163E-8 3.474335789381089E-12 -1.680760895096322E-10 1.713275148937944E-11 q 1.035655526885391E-9 9.896979922013418E-9 -6.029580328658329E-6 1.027264058900851E-10 -3.148956411058977E-8 1.242185441141723E-10 tp -3.192880823923163E-8 -6.029580328658329E-6 .06648682877245075 -8.162494372253832E-7 .000346808310361421 3.524055728923442E-7 node 3.474335789381089E-12 1.027264058900851E-10 -8.162494372253832E-7 1.444390504937292E-9 -5.386663855777528E-9 -7.106354554924474E-10 peri -1.680760895096322E-10 -3.148956411058977E-8 .000346808310361421 -5.386663855777528E-9 1.809921808619616E-6 2.393860742334924E-9 i 1.713275148937944E-11 1.242185441141723E-10 3.524055728923442E-7 -7.106354554924474E-10 2.393860742334924E-9 3.685487219609046E-10 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 4.34   n/a E2021B55   rotation period rot_per 7.88 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 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) Mon. Not. Royal Ast. Soc. 424, 3156-3177.] 230965 (2004 XA192)          Discovered 2004-Dec-12 by Palomar at Palomar Reference: 20100130/Numbers.arc Last Updated: 2010-02-01 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-02 18:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin