+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102728 (1999 VS101) Classification: Main-belt Asteroid          SPK-ID: 2102728 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06337585805391895 3.8279e-08   a 2.647815374315388 1.4747e-08 au q 2.480007802999792 1.0839e-07 au i 2.425901653416489 4.4742e-06 deg node 225.6024952231371 0.0001008 deg peri 205.9307749152985 0.00010906 deg M 304.5887989649103 4.304e-05 deg tp 2459442.728387979995 (2021-Aug-16.22838798) 0.00018897 TDB period 1573.729102489164 4.31 1.3147e-05 3.599e-08 d yr n .2287560161596991 1.9111e-09 deg/d Q 2.815622945630984 1.5682e-08 au   Orbit Determination Parameters    # obs. used (total)      591      data-arc span      7718 days (21.13 yr)      first obs. used      1999-11-09      last obs. used      2020-12-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60968      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:32:13   Additional Information  Earth MOID = 1.49413 au   Jupiter MOID = 2.35241 au   T_jup = 3.388  [ 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 15.90   n/a E2021B55   102728 (1999 VS101)          Discovered 1999-Nov-09 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 19:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin