+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   13944 (1990 OX1) Classification: Main-belt Asteroid          SPK-ID: 2013944 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO236470 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1182729 n/a   a 2.3971397 n/a AU q 2.1136230 n/a AU i 5.72757 n/a deg node 86.87281 n/a deg peri 280.77985 n/a deg M 6.71613 n/a deg tp 2456375.2096381 (2013-Mar-23.70963810) n/a JED period 1355.6215082 3.71 n/a n/a d yr n 0.26556085 n/a deg/d Q 2.6806564 n/a AU   Orbit Determination Parameters    # obs. used (total)      963      first obs. used      1989-??-??      last obs. used      2012-08-11      # oppositions      14      planetary ephem.      DE403      condition code      0      fit RMS      0.55      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.512  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.4 mag n/a PDS3 (MPC 39035)   13944 (1990 OX1)          Discovered 1990-Jul-29 by Holt, H. E. at Palomar (675) Reference: 20000320/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 OX1 = 1996 CR  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-19 20:43 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin