+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2017 JJ2) Classification: Aten [NEO]          SPK-ID: 3774574 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2457878.5 (2017-May-05.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6264483432533141 0.0013571   a .6915479746919987 0.00029329 au q .2583288916660113 0.0010481 au i 12.15369338061769 0.056257 deg node 216.4315955637605 0.011268 deg peri 205.1834154911257 0.026055 deg M 123.0396583488954 0.11771 deg tp 2457806.708254393546 (2017-Feb-22.20825439) 0.11434 TDB period 210.0544553288373 0.58 0.13363 0.0003659 d yr n 1.713841296231613 0.0010903 deg/d Q 1.124767057717986 0.00047702 au   Orbit Determination Parameters    # obs. used (total)      27      data-arc span      4 days      first obs. used      2017-05-03      last obs. used      2017-05-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .59965      source      ORB      producer      Otto Matic      solution date      2017-May-10 05:14:59   Additional Information  Earth MOID = .0126979 au   Jupiter MOID = 4.22442 au   T_jup = 8.080  [ 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 25.1   n/a MPO410024   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-04 20:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin