+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2001 GR2) Classification: Apollo [NEO, PHA]          SPK-ID: 3074752 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 .6217982865237407 8.4372e-08   a 1.862468068244152 8.0425e-09 au q .7043886147047569 1.546e-07 au i 11.82802053421842 3.4961e-05 deg node 190.2417077992957 2.6773e-05 deg peri 99.32013599955795 2.9627e-05 deg M 166.79232239954 1.8263e-05 deg tp 2458570.364551536846 (2019-Mar-27.86455154) 4.4701e-05 TDB period 928.3926215488826 2.54 6.0135e-06 1.646e-08 d yr n .3877669766476541 2.5117e-09 deg/d Q 3.020547521783547 1.3043e-08 au   Orbit Determination Parameters    # obs. used (total)      78      data-arc span      3850 days (10.54 yr)      first obs. used      2001-04-05      last obs. used      2011-10-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .38553      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 09:16:25   Additional Information  Earth MOID = .012823 au   Jupiter MOID = 2.34251 au   T_jup = 3.711  [ 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 21.6   n/a MPO211634   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-18 18:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin