+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   73678 (1988 TY) Classification: Main-belt Asteroid          SPK-ID: 2073678 [ 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 .2455109059864754 1.4108e-07   a 2.418841544336373 2.5424e-08 AU q 1.824989565348625 3.3299e-07 AU i 5.259742578756802 1.2958e-05 deg node 14.9140507842211 8.259e-05 deg peri 1.62752223288186 8.47e-05 deg M 188.2494330776514 2.6107e-05 deg tp 2457056.049112976607 (2015-Feb-02.54911298) 0.00010841 JED period 1374.072207739944 3.76 2.1664e-05 5.931e-08 d yr n .2619949650187041 4.1307e-09 deg/d Q 3.012693523324121 3.1666e-08 AU   Orbit Determination Parameters    # obs. used (total)      358      data-arc span      8960 days (24.53 yr)      first obs. used      1988-10-07      last obs. used      2013-04-19      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .51691      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 17:24:22   Additional Information  Earth MOID = .825879 AU   T_jup = 3.467  [ 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 15.65 mag .63294 1 autocmod 2.5c 73678 (1988 TY)          Discovered 1988-Oct-13 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1988 TY = 2003 SM16  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 01:10 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin