+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   11742 (1999 JZ5) Classification: Main-belt Asteroid          SPK-ID: 2011742 [ 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 .01640157417992429 7.7848e-08   a 2.79366032779945 3.0598e-08 AU q 2.747839900699536 2.2527e-07 AU i 5.588282333034892 7.5147e-06 deg node 104.068431862591 9.1945e-05 deg peri 134.7523056862557 0.00029625 deg M 343.4651139102416 0.00028334 deg tp 2456478.835304196242 (2013-Jul-05.33530420) 0.0013425 JED period 1705.527897656002 4.67 2.802e-05 7.671e-08 d yr n .2110783414887362 3.4678e-09 deg/d Q 2.839480754899364 3.11e-08 AU   Orbit Determination Parameters    # obs. used (total)      655      data-arc span      22359 days (61.22 yr)      first obs. used      1952-01-30      last obs. used      2013-04-18      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .53379      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:45:55   Additional Information  Earth MOID = 1.73691 AU   T_jup = 3.321  [ 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 (MPC 35896)   11742 (1999 JZ5)          Discovered 1999-May-07 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905) Reference: 19990928/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 09:30 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin