+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305861 (2009 EL24) Classification: Main-belt Asteroid          SPK-ID: 2305861 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02090960543318637 5.2058e-08   a 2.784930957418363 3.6502e-08 au q 2.726699149940079 1.5545e-07 au i 5.07994467230372 5.7976e-06 deg node 46.67724359491972 5.8718e-05 deg peri 205.9704699190896 0.00015208 deg M 70.57723848950566 0.00013688 deg tp 2458667.700828185088 (2019-Jul-03.20082819) 0.00064774 TDB period 1697.540232764743 4.65 3.3375e-05 9.138e-08 d yr n .2120715568630009 4.1694e-09 deg/d Q 2.843162764896647 3.7265e-08 au   Orbit Determination Parameters    # obs. used (total)      208      data-arc span      6110 days (16.73 yr)      first obs. used      2002-11-05      last obs. used      2019-07-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61462      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 05:55:05   Additional Information  Earth MOID = 1.7135 au   Jupiter MOID = 2.13669 au   T_jup = 3.326  [ hide covariance matrix ] Orbital Elements at Epoch 2457470.5 (2016-Mar-23.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .01986292654563548 5.2161e-08   q 2.730112399217268 1.5645e-07 au tp 2456994.624736713432 (2014-Dec-03.12473671) 0.00069503 TDB node 46.74761396018239 5.8585e-05 deg peri 211.2730948279755 0.00015882 deg i 5.086150232722978 5.8029e-06 deg   Orbit Determination Parameters    # obs. used (total)      208      data-arc span      6110 days (16.73 yr)      first obs. used      2002-11-05      last obs. used      2019-07-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61462      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 05:55:05   Additional Information  Jupiter MOID = 2.13669 au   T_jup = 3.326  Orbit Covariance (6×6)   e q tp node peri i e 2.72076729616928E-15 -7.956633603580548E-15 -4.765753405204631E-13 2.238412975199731E-14 -1.395119930583005E-13 -1.546228011542051E-15 q -7.956633603580548E-15 2.447564137584847E-14 -8.222797926382536E-12 -6.89544584145623E-14 -1.576175082419183E-12 6.202309751117188E-15 tp -4.765753405204631E-13 -8.222797926382536E-12 4.830725573364357E-7 -1.699299536599217E-11 1.026211033538532E-7 -1.041590435480121E-11 node 2.238412975199731E-14 -6.89544584145623E-14 -1.699299536599217E-11 3.432211437934321E-9 -3.422098645547491E-9 1.465467349129037E-11 peri -1.395119930583005E-13 -1.576175082419183E-12 1.026211033538532E-7 -3.422098645547491E-9 2.522343201874578E-8 -1.671868114710018E-11 i -1.546228011542051E-15 6.202309751117188E-15 -1.041590435480121E-11 1.465467349129037E-11 -1.671868114710018E-11 3.367396405832593E-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 MPO437358   305861 (2009 EL24)          Discovered 2009-Mar-02 by Spacewatch at Kitt Peak Reference: 20111110/Numbers.arc Last Updated: 2011-11-14 [ show close-approach data ] Alternate Designations  2009 EL24 = 2002 VB138 = 2007 XV22  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-05 19:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin