+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   187473 (2006 BJ103) Classification: Jupiter Trojan          SPK-ID: 2187473 [ 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 .006625259285188881 7.7788e-08   a 5.126434497473022 1.3529e-07 au q 5.092470539718727 4.237e-07 au i 9.812378432479452 7.1004e-06 deg node 149.5600846513927 4.4954e-05 deg peri 244.722761537558 0.00070213 deg M 208.3967370128985 0.00070776 deg tp 2460985.867372454587 (2025-Nov-06.36737245) 0.0083635 TDB period 4239.567417083465 11.61 0.00016783 4.595e-07 d yr n .08491432369948149 3.3615e-09 deg/d Q 5.160398455227319 1.3619e-07 au   Orbit Determination Parameters    # obs. used (total)      165      data-arc span      9193 days (25.17 yr)      first obs. used      1995-03-23      last obs. used      2020-05-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .6104      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:55:35   Additional Information  Earth MOID = 4.09651 au   Jupiter MOID = .106421 au   T_jup = 2.971  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.12   n/a E2021B55   187473 (2006 BJ103)          Discovered 2006-Jan-23 by Mt. Lemmon Survey at Mount Lemmon Reference: 20080520/Numbers.arc Last Updated: 2008-05-22 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 07:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin