+ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02090955887130524 4.2356e-08   a 2.784930987031974 2.6496e-08 au q 2.726699308606106 1.1097e-07 au i 5.079942660511904 4.4789e-06 deg node 46.67716060100788 5.4127e-05 deg peri 205.9705083876783 0.00014305 deg M 70.57727926040339 0.00013047 deg tp 2458667.700630626182 (2019-Jul-03.20063063) 0.00061615 TDB period 1697.540259840978 4.65 2.4226e-05 6.633e-08 d yr n .2120715534804012 3.0265e-09 deg/d Q 2.843162665457841 2.705e-08 au   Orbit Determination Parameters    # obs. used (total)      283      data-arc span      6575 days (18.00 yr)      first obs. used      2002-11-05      last obs. used      2020-11-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5587      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 06:08:58   Additional Information  Earth MOID = 1.7135 au   Jupiter MOID = 2.13669 au   T_jup = 3.326  [ hide covariance matrix ] Orbital Elements at Epoch 2458026.5 (2017-Sep-30.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02028452156251623 4.1278e-08   q 2.727901617019297 1.0817e-07 au tp 2458692.048024630200 (2019-Jul-27.54802463) 0.00064721 TDB node 46.74635838658021 5.4003e-05 deg peri 211.2488935129907 0.00014931 deg i 5.086564989174796 4.4844e-06 deg   Orbit Determination Parameters    # obs. used (total)      283      data-arc span      6575 days (18.00 yr)      first obs. used      2002-11-05      last obs. used      2020-11-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5587      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 06:08:58   Additional Information  Jupiter MOID = 2.13669 au   T_jup = 3.326  Orbit Covariance (6×6)   e q tp node peri i e 1.70383943983159E-15 -4.351966307393585E-15 -6.149536250986103E-12 1.29687115457192E-14 -1.420146538427194E-12 1.567076128834058E-16 q -4.351966307393585E-15 1.169980573800236E-14 1.295460651985651E-11 -3.394210255520385E-14 2.994199896916897E-12 5.52511841120358E-16 tp -6.149536250986103E-12 1.295460651985651E-11 4.188848377013937E-7 -2.320242164236971E-10 9.010654499711248E-8 -2.977507856076184E-11 node 1.29687115457192E-14 -3.394210255520385E-14 -2.320242164236971E-10 2.916365176141365E-9 -2.954627892903279E-9 -6.664548797569471E-11 peri -1.420146538427194E-12 2.994199896916897E-12 9.010654499711248E-8 -2.954627892903279E-9 2.229479267198543E-8 5.99372950991185E-11 i 1.567076128834058E-16 5.52511841120358E-16 -2.977507856076184E-11 -6.664548797569471E-11 5.99372950991185E-11 2.011014949203217E-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 ] 2021-Jan-26 10:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin