+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2017 EW2) Classification: Amor [NEO]          SPK-ID: 3771010 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5392881788867389 3.1163e-08   a 2.52339367387032 3.1862e-09 au q 1.162557294874478 7.9363e-08 au i 6.917927229098296 6.0937e-06 deg node 41.60999776818787 3.2265e-05 deg peri 133.4450321147287 6.0952e-05 deg M 337.8193973685114 9.7655e-06 deg tp 2459290.708358986588 (2021-Mar-17.20835899) 3.9748e-05 TDB period 1464.117534348166 4.01 2.773e-06 7.592e-09 d yr n .2458818992016745 4.657e-10 deg/d Q 3.884230052866162 4.9045e-09 au   Orbit Determination Parameters    # obs. used (total)      103      data-arc span      2992 days (8.19 yr)      first obs. used      2013-01-31      last obs. used      2021-04-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .63824      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 18:44:43   Additional Information  Earth MOID = .187254 au   Jupiter MOID = 1.1148 au   T_jup = 3.226  [ 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 23.3   n/a MPO405478   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 20:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin