+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102809 (1999 VT173) Classification: Main-belt Asteroid          SPK-ID: 2102809 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07428837571109116 6.875e-08   a 2.690479616383285 2.7218e-08 au q 2.490608255798371 1.9905e-07 au i 6.485335052553363 5.2769e-06 deg node 70.49775285666981 5.3775e-05 deg peri 302.6419810208258 6.3397e-05 deg M 312.7696039564675 3.8156e-05 deg tp 2459411.976479771374 (2021-Jul-16.47647977) 0.00017282 TDB period 1611.91815219004 4.41 2.446e-05 6.697e-08 d yr n .2233364017340982 3.389e-09 deg/d Q 2.890350976968199 2.924e-08 au   Orbit Determination Parameters    # obs. used (total)      316      data-arc span      7529 days (20.61 yr)      first obs. used      1999-10-10      last obs. used      2020-05-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58058      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:52:33   Additional Information  Earth MOID = 1.49752 au   Jupiter MOID = 2.47223 au   T_jup = 3.359  [ 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 15.82   n/a E2021B55   102809 (1999 VT173)          Discovered 1999-Nov-15 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-08 19:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin