+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   146261 (2001 BA10) Classification: Main-belt Asteroid          SPK-ID: 2146261 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1764101385305174 8.1336e-08   a 3.145596701536372 3.2982e-08 au q 2.590681551657202 2.5267e-07 au i 26.96365140913222 7.2281e-06 deg node 82.15806877698148 1.6676e-05 deg peri 106.98052813 2.5739e-05 deg M 76.29003810486945 1.7726e-05 deg tp 2458568.664522438865 (2019-Mar-26.16452244) 9.9959e-05 TDB period 2037.759788614994 5.58 3.2049e-05 8.775e-08 d yr n .1766645911904472 2.7785e-09 deg/d Q 3.700511851415542 3.88e-08 au   Orbit Determination Parameters    # obs. used (total)      520      data-arc span      6741 days (18.46 yr)      first obs. used      2000-11-27      last obs. used      2019-05-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53494      source      ORB      producer      Otto Matic      solution date      2019-May-30 07:22:04   Additional Information  Earth MOID = 1.7132 au   Jupiter MOID = 1.73326 au   T_jup = 3.018  [ 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 14.5   n/a MPO475267   diameter diameter 8.008 km 0.851 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.052   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   146261 (2001 BA10)          Discovered 2001-Jan-19 by Spacewatch at Kitt Peak Reference: 20070106/Numbers.arc Last Updated: 2007-01-09 [ show close-approach data ] Alternate Designations  2001 BA10 = 2002 DF2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-26 19:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin