+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06507989267225238 6.0909e-08   a 2.591342797170945 2.2348e-08 au q 2.422698486054046 1.5498e-07 au i 3.448166462993939 9.084e-06 deg node 30.19880837658431 0.00010923 deg peri 264.6194310991694 0.00013293 deg M 53.91558041264869 8.137e-05 deg tp 2458772.309524968217 (2019-Oct-15.80952497) 0.00034315 TDB period 1523.651797545516 4.17 1.971e-05 5.396e-08 d yr n .236274456263519 3.0565e-09 deg/d Q 2.759987108287845 2.3802e-08 au   Orbit Determination Parameters    # obs. used (total)      276      data-arc span      7693 days (21.06 yr)      first obs. used      1997-02-02      last obs. used      2018-02-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54452      source      ORB      producer      Otto Matic      solution date      2018-Mar-05 21:59:16   Additional Information  Earth MOID = 1.40977 au   Jupiter MOID = 2.35015 au   T_jup = 3.414  [ hide covariance matrix ] Orbital Elements at Epoch 2456095.5 (2012-Jun-17.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06345612076859561 6.0218e-08   q 2.428423793197566 1.5255e-07 au tp 2455723.928334657144 (2011-Jun-11.42833466) 0.00034156 TDB node 30.39265865358584 0.00010874 deg peri 264.7658976913381 0.00013414 deg i 3.456517162088653 9.0989e-06 deg   Orbit Determination Parameters    # obs. used (total)      276      data-arc span      7693 days (21.06 yr)      first obs. used      1997-02-02      last obs. used      2018-02-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54452      source      ORB      producer      Otto Matic      solution date      2018-Mar-05 21:59:16   Additional Information  Jupiter MOID = 2.35015 au   T_jup = 3.414  Orbit Covariance (6×6)   e q tp node peri i e 3.626250026338029E-15 -9.103636680502661E-15 1.34780427864937E-12 6.504985174144731E-15 3.299660962490735E-13 2.761045575244544E-16 q -9.103636680502661E-15 2.327016087559114E-14 -1.352051497633193E-12 -1.15700186418493E-14 -3.47245808762547E-13 -3.028138216925739E-16 tp 1.34780427864937E-12 -1.352051497633193E-12 1.166656627905926E-7 1.68102929001957E-10 2.686107478168737E-8 1.260747353430127E-11 node 6.504985174144731E-15 -1.15700186418493E-14 1.68102929001957E-10 1.182519847889E-8 -1.176334492148464E-8 -7.117969682640421E-11 peri 3.299660962490735E-13 -3.47245808762547E-13 2.686107478168737E-8 -1.176334492148464E-8 1.799374512022395E-8 7.410255866067205E-11 i 2.761045575244544E-16 -3.028138216925739E-16 1.260747353430127E-11 -7.117969682640421E-11 7.410255866067205E-11 8.279077319988496E-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 ] 2020-Oct-20 23:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin