+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58687 (1998 BJ3) Classification: Main-belt Asteroid          SPK-ID: 2058687 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2279687961959961 2.6744e-08   a 2.332941655989677 7.7367e-09 au q 1.801103755078217 6.4596e-08 au i 2.744041686669908 3.1955e-06 deg node 301.8530403330969 9.8109e-05 deg peri 340.6621118220665 9.8674e-05 deg M 317.0109711292956 1.0745e-05 deg tp 2459155.920884851163 (2020-Nov-02.42088485) 3.891e-05 TDB period 1301.530181449333 3.56 6.4744e-06 1.773e-08 d yr n .276597504330724 1.3759e-09 deg/d Q 2.864779556901138 9.5004e-09 au   Orbit Determination Parameters    # obs. used (total)      965      data-arc span      10718 days (29.34 yr)      first obs. used      1991-02-19      last obs. used      2020-06-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53074      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:50:01   Additional Information  Earth MOID = .784928 au   Jupiter MOID = 2.29333 au   T_jup = 3.533  [ 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 15.89   n/a E2021B10   diameter diameter 1.495 km 0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.455   0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   58687 (1998 BJ3)          Discovered 1998-Jan-18 by Spacewatch at Kitt Peak Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 BJ3 = 1999 NL27  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 05:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin