+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78964 (2003 SR251) Classification: Main-belt Asteroid          SPK-ID: 2078964 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1449611954194041 5.1066e-08   a 2.281295386275215 6.4182e-09 au q 1.950596079975989 1.1791e-07 au i 6.982306322361444 4.8813e-06 deg node 34.67245796898654 3.0468e-05 deg peri 338.9258386663686 3.2733e-05 deg M 317.2023761613867 1.0665e-05 deg tp 2459150.119385461021 (2020-Oct-27.61938546) 3.7215e-05 TDB period 1258.550684240807 3.45 5.3112e-06 1.454e-08 d yr n .2860433072007443 1.2071e-09 deg/d Q 2.611994692574442 7.3486e-09 au   Orbit Determination Parameters    # obs. used (total)      1125      data-arc span      8772 days (24.02 yr)      first obs. used      1996-11-07      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50325      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:13:09   Additional Information  Earth MOID = .953561 au   Jupiter MOID = 2.85146 au   T_jup = 3.581  [ hide covariance matrix ] Orbital Elements at Epoch 2457709.5 (2016-Nov-17.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1459207383426058 5.1027e-08   q 1.947953911059579 1.1796e-07 au tp 2457892.474416297808 (2017-May-18.97441630) 3.7718e-05 TDB node 34.71741821136492 3.0435e-05 deg peri 339.1159141720335 3.2665e-05 deg i 6.987442221633935 4.8842e-06 deg   Orbit Determination Parameters    # obs. used (total)      1125      data-arc span      8772 days (24.02 yr)      first obs. used      1996-11-07      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50325      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:13:09   Additional Information  Jupiter MOID = 2.85146 au   T_jup = 3.581  Orbit Covariance (6×6)   e q tp node peri i e 2.603777119518165E-15 -6.012871551931082E-15 -5.197356348693698E-13 -2.908193543208553E-14 -1.223090317493303E-13 -7.756564244462988E-15 q -6.012871551931082E-15 1.391370377366017E-14 1.136410845879154E-12 6.71394681457571E-14 2.618381022311452E-13 1.788127650533206E-14 tp -5.197356348693698E-13 1.136410845879154E-12 1.422612866495409E-9 1.24458231067592E-11 4.599070295192051E-10 1.675417954936384E-12 node -2.908193543208553E-14 6.71394681457571E-14 1.24458231067592E-11 9.26277946461168E-10 -9.151842862315201E-10 -9.018774780014521E-11 peri -1.223090317493303E-13 2.618381022311452E-13 4.599070295192051E-10 -9.151842862315201E-10 1.06701345802747E-9 9.003466658247614E-11 i -7.756564244462988E-15 1.788127650533206E-14 1.675417954936384E-12 -9.018774780014521E-11 9.003466658247614E-11 2.385502245787706E-11 [ 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 MPO235118   78964 (2003 SR251)          Discovered 2003-Sep-26 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  2003 SR251 = 1996 VV39 = 2002 JS147  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 19:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin