+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   103032 (1999 XJ116) Classification: Main-belt Asteroid          SPK-ID: 2103032 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07098375324625443 4.2274e-08   a 2.620147063771061 1.1746e-08 au q 2.434159191127438 1.1464e-07 au i 14.14032262819601 7.1471e-06 deg node 38.55869110801228 1.5243e-05 deg peri 53.35832031239223 5.1687e-05 deg M 311.3918159129342 4.8706e-05 deg tp 2459409.667316746631 (2021-Jul-14.16731675) 0.00020973 TDB period 1549.126663401194 4.24 1.0417e-05 2.852e-08 d yr n .2323890024651696 1.5627e-09 deg/d Q 2.806134936414684 1.258e-08 au   Orbit Determination Parameters    # obs. used (total)      1093      data-arc span      7794 days (21.34 yr)      first obs. used      1999-10-10      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50414      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:44:47   Additional Information  Earth MOID = 1.47299 au   Jupiter MOID = 2.39177 au   T_jup = 3.359  [ hide covariance matrix ] Orbital Elements at Epoch 2457406.5 (2016-Jan-19.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07035795080955801 4.2849e-08   q 2.436751083923354 1.162e-07 au tp 2457852.248512906814 (2017-Apr-08.74851291) 0.00021048 TDB node 38.62899371592018 1.5216e-05 deg peri 51.60462505303311 5.2059e-05 deg i 14.15461766881126 7.153e-06 deg   Orbit Determination Parameters    # obs. used (total)      1093      data-arc span      7794 days (21.34 yr)      first obs. used      1999-10-10      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50414      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:44:47   Additional Information  Jupiter MOID = 2.39177 au   T_jup = 3.359  Orbit Covariance (6×6)   e q tp node peri i e 1.836051365786455E-15 -4.959228052919567E-15 -4.107617833032095E-12 4.049786628479833E-15 -9.087257476641709E-13 -5.63896762948298E-15 q -4.959228052919567E-15 1.350305209318669E-14 1.09612588979609E-11 -1.260026754443051E-14 2.415951393402941E-12 1.601283205653402E-14 tp -4.107617833032095E-12 1.09612588979609E-11 4.430139814137197E-8 -1.696791065507433E-11 1.048146531563919E-8 3.615125321574433E-11 node 4.049786628479833E-15 -1.260026754443051E-14 -1.696791065507433E-11 2.315156413641171E-10 -2.276342923019341E-10 -2.813473163906849E-11 peri -9.087257476641709E-13 2.415951393402941E-12 1.048146531563919E-8 -2.276342923019341E-10 2.710113867277951E-9 3.57077853248213E-11 i -5.63896762948298E-15 1.601283205653402E-14 3.615125321574433E-11 -2.813473163906849E-11 3.57077853248213E-11 5.116482775924059E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.86   n/a E2021B55   diameter diameter 3.202 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.227   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   103032 (1999 XJ116)          Discovered 1999-Dec-05 by CSS at Catalina Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 07:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin