+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   16885 (1998 BX25) Classification: Main-belt Asteroid          SPK-ID: 2016885 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07592036203688306 6.8933e-08   a 2.889826892574943 3.5378e-08 AU q 2.670430188666733 1.9916e-07 AU i 11.60585071496239 8.6388e-06 deg node 294.2680668292387 3.5301e-05 deg peri 155.7121648142127 6.8128e-05 deg M 68.20198049726507 5.9166e-05 deg tp 2456060.561264414881 (2012-May-13.06126441) 0.00029357 JED period 1794.345910754749 4.91 3.295e-05 9.021e-08 d yr n .2006302117346898 3.6842e-09 deg/d Q 3.109223596483153 3.8064e-08 AU   Orbit Determination Parameters    # obs. used (total)      835      data-arc span      8254 days (22.60 yr)      first obs. used      1990-09-09      last obs. used      2013-04-15      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .5112      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:12:39   Additional Information  Earth MOID = 1.69073 AU   T_jup = 3.256  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.3 mag n/a PDS3 (MPO 2963)   16885 (1998 BX25)          Discovered 1998-Jan-25 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905) Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1998 BX25 = 1990 RB18  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-26 03:57 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin