+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102643 (1999 VQ43) Classification: Main-belt Asteroid          SPK-ID: 2102643 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2589594266310523 5.4525e-08   a 2.665124778892002 1.6849e-08 au q 1.974965594249919 1.5253e-07 au i .4994122508727892 5.3888e-06 deg node 348.8891231483418 0.00059405 deg peri 356.7616024168957 0.00059412 deg M 332.5043762589953 1.2594e-05 deg tp 2459321.876838978880 (2021-Apr-17.37683898) 5.6383e-05 TDB period 1589.186062625398 4.35 1.507e-05 4.126e-08 d yr n .2265310579211007 2.1482e-09 deg/d Q 3.355283963534084 2.1212e-08 au   Orbit Determination Parameters    # obs. used (total)      446      data-arc span      7570 days (20.73 yr)      first obs. used      1999-10-01      last obs. used      2020-06-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57311      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:53:30   Additional Information  Earth MOID = .966009 au   Jupiter MOID = 2.06897 au   T_jup = 3.335  [ 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 15.91   n/a E2021B55   102643 (1999 VQ43)          Discovered 1999-Nov-01 by CSS at Catalina Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-07 09:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin