+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9868 (1991 VP1) Classification: Main-belt Asteroid          SPK-ID: 2009868 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1288570826351522 5.0231e-08   a 2.254988981306358 1.5404e-08 AU q 1.964417679800807 1.1317e-07 AU i 4.92420863404741 6.501e-06 deg node 123.033163147173 7.408e-05 deg peri 317.209293533368 8.1262e-05 deg M 88.69121674472052 3.3898e-05 deg tp 2456095.785461845269 (2012-Jun-17.28546185) 0.00011521 JED period 1236.844388452176 3.39 1.2673e-05 3.47e-08 d yr n .2910632924894576 2.9824e-09 deg/d Q 2.545560282811909 1.7389e-08 AU   Orbit Determination Parameters    # obs. used (total)      946      data-arc span      8861 days (24.26 yr)      first obs. used      1989-01-08      last obs. used      2013-04-13      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .5494      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:37:33   Additional Information  Earth MOID = .982838 AU   T_jup = 3.608  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.5 mag n/a PDS3 (MPC 33461)   9868 (1991 VP1)          Discovered 1991-Nov-04 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 19990106/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 VP1 = 1994 PQ27  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 11:14 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin