+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160639 (1999 VJ122) Classification: Main-belt Asteroid          SPK-ID: 2160639 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1471508830635896 5.9187e-08   a 2.643186102067228 1.1555e-08 au q 2.254238933046628 1.6039e-07 au i 3.199661367113749 3.6147e-06 deg node 88.88628669202625 0.00010352 deg peri 263.3638745013405 0.00010469 deg M 15.02800688404966 1.356e-05 deg tp 2459134.977731570394 (2020-Oct-12.47773157) 5.9179e-05 TDB period 1569.603794878078 4.30 1.0292e-05 2.818e-08 d yr n .2293572436399236 1.504e-09 deg/d Q 3.032133271087828 1.3255e-08 au   Orbit Determination Parameters    # obs. used (total)      321      data-arc span      21997 days (60.22 yr)      first obs. used      1960-09-24      last obs. used      2020-12-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49519      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 11:02:11   Additional Information  Earth MOID = 1.24972 au   Jupiter MOID = 2.39695 au   T_jup = 3.376  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.79   n/a E2021B55   160639 (1999 VJ122)          Discovered 1999-Nov-04 by Spacewatch at Kitt Peak Reference: 20070828/Numbers.arc Last Updated: 2007-08-30 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 20:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin