+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   13514 (1990 MR) Classification: Main-belt Asteroid          SPK-ID: 2013514 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253459 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2165446 n/a   a 2.3436268 n/a AU q 1.8361271 n/a AU i 6.88529 n/a deg node 248.34455 n/a deg peri 7.04846 n/a deg M 152.71143 n/a deg tp 2455844.5955609 (2011-Oct-10.09556090) n/a JED period 1310.4821169 3.59 n/a n/a d yr n 0.27470806 n/a deg/d Q 2.8511265 n/a AU   Orbit Determination Parameters    # obs. used (total)      848      first obs. used      1980-??-??      last obs. used      2013-02-10      # oppositions      15      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.521  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.2 mag n/a PDS3 (MPC 38319)   13514 (1990 MR)          Discovered 1990-Jun-18 by Holt, H. E. at Palomar (675) Reference: 20000222/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 MR = 1980 VM4 = 1983 RH5 = 1990 OF4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 03:52 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin