+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   29139 (1988 CP) Classification: Main-belt Asteroid          SPK-ID: 2029139 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO240439 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1979922 n/a   a 2.4119876 n/a AU q 1.9344329 n/a AU i 12.52437 n/a deg node 340.93752 n/a deg peri 177.86528 n/a deg M 245.92137 n/a deg tp 2456834.0736019 (2014-Jun-25.57360190) n/a JED period 1368.2360727 3.75 n/a n/a d yr n 0.26311249 n/a deg/d Q 2.8895423 n/a AU   Orbit Determination Parameters    # obs. used (total)      592      first obs. used      1973-??-??      last obs. used      2012-10-15      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.53      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.460  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.9 mag n/a PDS3 (MPO 16191)   29139 (1988 CP)          Discovered 1988-Feb-15 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20011002/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1988 CP = 1973 DD = 1999 BT15  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 12:32 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin