+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   23690 (1997 JD14) Classification: Main-belt Asteroid          SPK-ID: 2023690 [ 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 .0156476974871409 1.1883e-07   a 2.545537738233948 3.125e-08 AU q 2.505705933763962 3.0213e-07 AU i 14.06514907223924 1.1011e-05 deg node 208.6184003826963 2.9455e-05 deg peri 160.5773074823752 0.00024933 deg M 199.7951163858051 0.00025073 deg tp 2457060.647505891049 (2015-Feb-07.14750589) 0.0010366 JED period 1483.432319660701 4.06 2.7317e-05 7.479e-08 d yr n .2426804345764432 4.4688e-09 deg/d Q 2.585369542703934 3.1739e-08 AU   Orbit Determination Parameters    # obs. used (total)      702      data-arc span      5826 days (15.95 yr)      first obs. used      1997-05-09      last obs. used      2013-04-21      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .51149      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:36:22   Additional Information  Earth MOID = 1.5095 AU   T_jup = 3.401  [ 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 13.8 mag n/a PDS3 (MPO 11165)   23690 (1997 JD14)          Discovered 1997-May-09 by Beijing Schmidt CCD Asteroid Program at Xinglong (327) Reference: 20010408/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1997 JD14 = 1998 QG77  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 05:15 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin