+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1772546504734497 6.6552e-08   a 3.14424585820639 3.1364e-08 au q 2.586913657607425 2.021e-07 au i 26.93591338226495 6.3418e-06 deg node 82.1050870368387 1.4133e-05 deg peri 106.9003469035752 2.21e-05 deg M 111.6779888800243 1.5201e-05 deg tp 2458568.760173416924 (2019-Mar-26.26017342) 8.5983e-05 TDB period 2036.447287873634 5.58 3.0471e-05 8.343e-08 d yr n .176778452427264 2.6451e-09 deg/d Q 3.701578058805356 3.6924e-08 au   Orbit Determination Parameters    # obs. used (total)      649      data-arc span      7172 days (19.64 yr)      first obs. used      2000-11-27      last obs. used      2020-07-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52528      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:00:24   Additional Information  Earth MOID = 1.7088 au   Jupiter MOID = 1.73294 au   T_jup = 3.019  [ 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 14.46   n/a E2021B55   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-Apr-16 15:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin