+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2015 EL7) Classification: Amor [NEO]          SPK-ID: 3713284 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4783520580559514 5.961e-08   a 2.070663089864752 9.5119e-09 au q 1.080157139287452 1.2413e-07 au i 17.96849924306741 1.4272e-05 deg node 18.20681650367748 8.3779e-06 deg peri 194.773377778728 5.4634e-05 deg M 322.999378383464 1.6797e-05 deg tp 2459312.358530507219 (2021-Apr-07.85853051) 5.0892e-05 TDB period 1088.334985285819 2.98 7.4991e-06 2.053e-08 d yr n .330780508636738 2.2792e-09 deg/d Q 3.061169040442051 1.4062e-08 au   Orbit Determination Parameters    # obs. used (total)      126      # delay obs. used      1      # Doppler obs. used      1      data-arc span      1110 days (3.04 yr)      first obs. used      2015-03-14      last obs. used      2018-03-28      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .37598      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 13:08:35   Additional Information  Earth MOID = .0860025 au   Jupiter MOID = 1.93206 au   T_jup = 3.567  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 22.7   n/a MPO369258   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 21:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin