+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   180416 (2004 BT50) Classification: Main-belt Asteroid          SPK-ID: 2180416 [ 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 .2356199915904052 4.8306e-08   a 2.418955694518937 1.5061e-08 au q 1.849001374118822 1.1317e-07 au i 13.91425631783082 6.3792e-06 deg node 132.6980568411736 1.8516e-05 deg peri 85.31033263931467 2.3633e-05 deg M 112.9084624525378 1.7235e-05 deg tp 2458769.512881152565 (2019-Oct-13.01288115) 6.3194e-05 TDB period 1374.169476891936 3.76 1.2834e-05 3.514e-08 d yr n .2619764199785891 2.4468e-09 deg/d Q 2.988910014919051 1.861e-08 au   Orbit Determination Parameters    # obs. used (total)      283      data-arc span      7003 days (19.17 yr)      first obs. used      2001-07-13      last obs. used      2020-09-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54723      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:26:26   Additional Information  Earth MOID = .90316 au   Jupiter MOID = 2.14709 au   T_jup = 3.437  [ 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 16.5   n/a MPO469942   180416 (2004 BT50)          Discovered 2004-Jan-21 by LINEAR at Socorro Reference: 20080321/Numbers.arc Last Updated: 2008-03-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-17 18:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin