+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   183800 (2004 BM40) Classification: Main-belt Asteroid          SPK-ID: 2183800 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0521508754132132 4.9311e-08   a 2.285297177335791 1.2374e-08 au q 2.166116928958384 1.1209e-07 au i 6.900465380243991 4.6665e-06 deg node 125.0946781343724 3.7967e-05 deg peri 16.28265636588834 6.2753e-05 deg M 252.4261905360179 5.2103e-05 deg tp 2459377.565240668064 (2021-Jun-12.06524067) 0.00018415 TDB period 1261.863713081136 3.45 1.0249e-05 2.806e-08 d yr n .2852922992142913 2.3171e-09 deg/d Q 2.404477425713198 1.3019e-08 au   Orbit Determination Parameters    # obs. used (total)      497      data-arc span      8318 days (22.77 yr)      first obs. used      1997-01-15      last obs. used      2019-10-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56439      source      ORB      producer      Otto Matic      solution date      2019-Nov-07 20:43:17   Additional Information  Earth MOID = 1.1802 au   Jupiter MOID = 2.59308 au   T_jup = 3.591  [ 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 16.4   n/a MPO494018   183800 (2004 BM40)          Discovered 2004-Jan-21 by LINEAR at Socorro Reference: 20080420/Numbers.arc Last Updated: 2008-04-23 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-27 01:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin