+ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1764101066684425 6.6568e-08   a 3.145596713438017 3.1177e-08 au q 2.590681661684515 2.0115e-07 au i 26.96364506399223 6.466e-06 deg node 82.15806710295951 1.4193e-05 deg peri 106.9805230620843 2.2383e-05 deg M 76.29004304021403 1.5713e-05 deg tp 2458568.664492051792 (2019-Mar-26.16449205) 8.8756e-05 TDB period 2037.759800180062 5.58 3.0295e-05 8.294e-08 d yr n .1766645901878079 2.6265e-09 deg/d Q 3.70051176519152 3.6677e-08 au   Orbit Determination Parameters    # obs. used (total)      641      data-arc span      7172 days (19.64 yr)      first obs. used      2000-11-27      last obs. used      2020-07-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52143      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 14:29:24   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 ] 2021-Jan-25 15:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin