+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305174 (2007 VF284) Classification: Main-belt Asteroid          SPK-ID: 2305174 [ 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 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1058271798580434 7.8978e-08   a 2.687193792995512 2.0237e-08 au q 2.402815652150758 2.177e-07 au i 3.484415414669147 8.567e-06 deg node 230.206585059194 9.3605e-05 deg peri 174.1349780293592 0.00010084 deg M 318.3807496319195 3.2657e-05 deg tp 2459186.511014418473 (2020-Dec-03.01101442) 0.00014529 TDB period 1608.966153845181 4.41 1.8175e-05 4.976e-08 d yr n .223746160936733 2.5275e-09 deg/d Q 2.971571933840266 2.2378e-08 au   Orbit Determination Parameters    # obs. used (total)      128      data-arc span      8052 days (22.05 yr)      first obs. used      1998-10-29      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54684      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 00:39:26   Additional Information  Earth MOID = 1.41187 au   Jupiter MOID = 2.38305 au   T_jup = 3.363  [ hide covariance matrix ] Orbital Elements at Epoch 2457816.5 (2017-Mar-04.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1072909676274664 7.9733e-08   q 2.398871755511296 2.2002e-07 au tp 2457569.922108430071 (2016-Jun-30.42210843) 0.00014719 TDB node 230.2593054935892 9.3519e-05 deg peri 172.7051096254806 0.00010044 deg i 3.484849789340615 8.5819e-06 deg   Orbit Determination Parameters    # obs. used (total)      128      data-arc span      8052 days (22.05 yr)      first obs. used      1998-10-29      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54684      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 00:39:26   Additional Information  Jupiter MOID = 2.38305 au   T_jup = 3.363  Orbit Covariance (6×6)   e q tp node peri i e 6.357424419060396E-15 -1.748923765300697E-14 -1.450690372011737E-12 -8.090837883412395E-14 -2.652783098919309E-13 -2.388358860740191E-15 q -1.748923765300697E-14 4.840668247554832E-14 2.885348550023204E-12 2.193037999137931E-13 4.681419160989876E-13 6.98703360327192E-15 tp -1.450690372011737E-12 2.885348550023204E-12 2.166466712729314E-8 7.439752194623153E-11 5.41983208216758E-9 -4.910565862418787E-12 node -8.090837883412395E-14 2.193037999137931E-13 7.439752194623153E-11 8.745779408214577E-9 -8.710083431272567E-9 -3.465456014575464E-10 peri -2.652783098919309E-13 4.681419160989876E-13 5.41983208216758E-9 -8.710083431272567E-9 1.008800209498078E-8 3.44574562298612E-10 i -2.388358860740191E-15 6.98703360327192E-15 -4.910565862418787E-12 -3.465456014575464E-10 3.44574562298612E-10 7.364818302886152E-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 17.2   n/a MPO258182   305174 (2007 VF284)          Discovered 2007-Nov-14 by Spacewatch at Kitt Peak Reference: 20111110/Numbers.arc Last Updated: 2011-11-14 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 04:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin