+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   243555 (1991 VB8) Classification: Main-belt Asteroid          SPK-ID: 2243555 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1276762632113835 5.8085e-08   a 2.972784255110368 2.2593e-08 au q 2.59323027008424 1.7695e-07 au i 9.836575672695414 5.5517e-06 deg node 212.5224583315862 2.8098e-05 deg peri 149.3686574160884 3.5724e-05 deg M 234.8658274259714 2.3883e-05 deg tp 2459651.254141327345 (2022-Mar-12.75414133) 0.00012913 TDB period 1872.162384253994 5.13 2.1342e-05 5.843e-08 d yr n .1922910122689226 2.1921e-09 deg/d Q 3.352338240136496 2.5477e-08 au   Orbit Determination Parameters    # obs. used (total)      277      data-arc span      10460 days (28.64 yr)      first obs. used      1991-11-04      last obs. used      2020-06-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60318      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 00:55:45   Additional Information  Earth MOID = 1.59712 au   Jupiter MOID = 2.14657 au   T_jup = 3.228  [ 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 15.8   n/a MPO433596   243555 (1991 VB8)          Discovered 1991-Nov-04 by Spacewatch at Kitt Peak Reference: 20100726/Numbers.arc Last Updated: 2010-07-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-29 14:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin