+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   146272 (2001 EY5) Classification: Main-belt Asteroid          SPK-ID: 2146272 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1535410875565329 3.9356e-08   a 2.308073275474623 1.0808e-08 au q 1.953689194598081 9.2959e-08 au i 7.147602295302285 4.8737e-06 deg node 27.60842717620461 3.5756e-05 deg peri 263.4933468457242 3.9435e-05 deg M 70.94421530679809 1.6566e-05 deg tp 2458748.101189266077 (2019-Sep-21.60118927) 5.8838e-05 TDB period 1280.774922539815 3.51 8.9965e-06 2.463e-08 d yr n .2810798319552583 1.9744e-09 deg/d Q 2.662457356351166 1.2468e-08 au   Orbit Determination Parameters    # obs. used (total)      905      data-arc span      7198 days (19.71 yr)      first obs. used      2001-03-02      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54028      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 23:06:46   Additional Information  Earth MOID = .95349 au   Jupiter MOID = 2.52965 au   T_jup = 3.560  [ hide covariance matrix ] Orbital Elements at Epoch 2457188.5 (2015-Jun-15.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1532313459600582 3.9306e-08   q 1.954710552255567 9.2822e-08 au tp 2457467.815730760538 (2016-Mar-20.31573076) 5.9428e-05 TDB node 27.63599694893416 3.5735e-05 deg peri 263.6922895872569 3.9436e-05 deg i 7.149573343483175 4.8746e-06 deg   Orbit Determination Parameters    # obs. used (total)      905      data-arc span      7198 days (19.71 yr)      first obs. used      2001-03-02      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54028      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 23:06:46   Additional Information  Jupiter MOID = 2.52965 au   T_jup = 3.560  Orbit Covariance (6×6)   e q tp node peri i e 1.544979288945579E-15 -3.631175322865314E-15 8.601330796417896E-14 1.186002212298247E-14 2.266691828184727E-14 2.083436154244442E-16 q -3.631175322865314E-15 8.615836619074569E-15 -2.617680177325456E-13 -2.909085235960304E-14 -7.573633121908597E-14 -9.682492718091645E-17 tp 8.601330796417896E-14 -2.617680177325456E-13 3.531647088408794E-9 -1.975362168697393E-11 1.009350977790107E-9 4.924547231881324E-12 node 1.186002212298247E-14 -2.909085235960304E-14 -1.975362168697393E-11 1.277002458994664E-9 -1.271378064826276E-9 -6.281121383441981E-12 peri 2.266691828184727E-14 -7.573633121908597E-14 1.009350977790107E-9 -1.271378064826276E-9 1.555222222177827E-9 7.543206869393806E-12 i 2.083436154244442E-16 -9.682492718091645E-17 4.924547231881324E-12 -6.281121383441981E-12 7.543206869393806E-12 2.376181689285695E-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 15.6   n/a MPO436735   146272 (2001 EY5)          Discovered 2001-Mar-02 by LONEOS at Anderson Mesa Reference: 20070106/Numbers.arc Last Updated: 2007-01-09 Alternate Designations  2001 EY5 = 2002 RV51  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-18 12:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin