+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102854 (1999 VN220) Classification: Main-belt Asteroid          SPK-ID: 2102854 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .231404542474175 3.3872e-08   a 2.35426023051353 1.1765e-08 au q 1.8094737190064 8.1152e-08 au i 8.494768453014087 3.6866e-06 deg node 263.8233752229774 3.2472e-05 deg peri 28.15333125792887 3.3898e-05 deg M 32.59392144812883 1.0987e-05 deg tp 2459081.042274848969 (2020-Aug-19.54227485) 3.9969e-05 TDB period 1319.411078621226 3.61 9.8904e-06 2.708e-08 d yr n .2728490050092631 2.0453e-09 deg/d Q 2.899046742020659 1.4488e-08 au   Orbit Determination Parameters    # obs. used (total)      637      data-arc span      8303 days (22.73 yr)      first obs. used      1998-04-01      last obs. used      2020-12-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52013      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:32:35   Additional Information  Earth MOID = .796221 au   Jupiter MOID = 2.29671 au   T_jup = 3.505  [ 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 15.98   n/a E2021B55   102854 (1999 VN220)          Discovered 1999-Nov-03 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-04 23:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin