+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   14417 (1991 RN13) Classification: Main-belt Asteroid          SPK-ID: 2014417 [ 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 .1955282968962804 6.7532e-08   a 2.20354853459978 1.6941e-08 AU q 1.772692442501191 1.519e-07 AU i 4.245477419686603 6.9907e-06 deg node 273.6475458661386 0.00010406 deg peri 43.79873552945084 0.00010636 deg M 242.6668047388894 2.8285e-05 deg tp 2456789.904310536209 (2014-May-12.40431054) 9.7039e-05 JED period 1194.76463145037 3.27 1.3778e-05 3.772e-08 d yr n .3013145773849886 3.4748e-09 deg/d Q 2.634404626698369 2.0254e-08 AU   Orbit Determination Parameters    # obs. used (total)      682      data-arc span      7889 days (21.60 yr)      first obs. used      1991-09-13      last obs. used      2013-04-19      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .5881      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:55:47   Additional Information  Earth MOID = .761986 AU   T_jup = 3.634  [ 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 15.0 mag n/a PDS3 (MPC 39824)   14417 (1991 RN13)          Discovered 1991-Sep-13 by Holt, H. E. at Palomar (675) Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 RN13 = 1991 SO1 = 1994 NB12  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 00:48 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin