+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70855 (1999 VS117) Classification: Main-belt Asteroid          SPK-ID: 2070855 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06497145484583061 5.2684e-08   a 2.591458027761851 1.7076e-08 au q 2.423087229526256 1.2878e-07 au i 3.448070381417692 7.7617e-06 deg node 30.19870882432805 7.8259e-05 deg peri 264.6824104805859 0.00010503 deg M 101.1195139007588 7.409e-05 deg tp 2458772.496650098509 (2019-Oct-15.99665010) 0.00031189 TDB period 1523.753428203343 4.17 1.5061e-05 4.123e-08 d yr n .2362586973303651 2.3352e-09 deg/d Q 2.759828825997445 1.8185e-08 au   Orbit Determination Parameters    # obs. used (total)      384      data-arc span      8743 days (23.94 yr)      first obs. used      1997-02-02      last obs. used      2021-01-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5181      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:26:16   Additional Information  Earth MOID = 1.4082 au   Jupiter MOID = 2.34921 au   T_jup = 3.414  [ hide covariance matrix ] Orbital Elements at Epoch 2457325.5 (2015-Oct-30.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06541976769226061 5.2992e-08   q 2.422574861657703 1.2975e-07 au tp 2457253.454636940369 (2015-Aug-18.95463694) 0.00030425 TDB node 30.25925933871681 7.8145e-05 deg peri 265.9092229390903 0.00010458 deg i 3.451031468841677 7.7659e-06 deg   Orbit Determination Parameters    # obs. used (total)      384      data-arc span      8743 days (23.94 yr)      first obs. used      1997-02-02      last obs. used      2021-01-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5181      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:26:16   Additional Information  Jupiter MOID = 2.34921 au   T_jup = 3.414  Orbit Covariance (6×6)   e q tp node peri i e 2.808143240906855E-15 -6.838565217327393E-15 5.981704197192307E-12 6.819718249205287E-15 1.282476874683694E-12 1.261429244512007E-15 q -6.838565217327393E-15 1.683576531843305E-14 -1.392650084970434E-11 -1.880520860121286E-14 -2.973060099980828E-12 -2.47373071237175E-15 tp 5.981704197192307E-12 -1.392650084970434E-11 9.256848357859584E-8 7.048064133945993E-12 2.115414309021647E-8 7.460784708387736E-12 node 6.819718249205287E-15 -1.880520860121286E-14 7.048064133945993E-12 6.106572179834072E-9 -6.093529632890028E-9 -1.086146295293151E-10 peri 1.282476874683694E-12 -2.973060099980828E-12 2.115414309021647E-8 -6.093529632890028E-9 1.093685372005952E-8 1.101679316062395E-10 i 1.261429244512007E-15 -2.47373071237175E-15 7.460784708387736E-12 -1.086146295293151E-10 1.101679316062395E-10 6.030941667419636E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.3   n/a MPO439541   70855 (1999 VS117)          Discovered 1999-Nov-09 by Spacewatch at Kitt Peak Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 VS117 = 1999 VO218 = 1999 VP228 = 2002 JH18  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 23:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin