+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120049 (2003 BT29) Classification: Main-belt Asteroid          SPK-ID: 2120049 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09480466664730904 5.748e-08   a 3.044683105481671 2.6211e-08 au q 2.756032938619787 1.8435e-07 au i 3.283599447571933 4.6011e-06 deg node 292.4271395853463 9.6627e-05 deg peri 305.6063251999304 0.00010155 deg M 28.37781049203272 2.7221e-05 deg tp 2459047.536449251419 (2020-Jul-17.03644925) 0.00014742 TDB period 1940.490732537298 5.31 2.5057e-05 6.86e-08 d yr n .1855200820924717 2.3956e-09 deg/d Q 3.333333272343554 2.8695e-08 au   Orbit Determination Parameters    # obs. used (total)      403      data-arc span      6807 days (18.64 yr)      first obs. used      2001-10-26      last obs. used      2020-06-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58497      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 17:59:53   Additional Information  Earth MOID = 1.74413 au   Jupiter MOID = 1.68929 au   T_jup = 3.229  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.30   n/a E2021B55   diameter diameter 3.726 km 0.698 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.106   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120049 (2003 BT29)          Discovered 2003-Jan-27 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  2003 BT29 = 2004 HP44  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-02 19:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin