+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2008 GM2) Classification: Apollo [NEO]          SPK-ID: 3408244 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1580264687569317 2.1252e-05   a 1.05328149565289 2.1623e-05 au q .8868351402878438 4.0558e-05 au i 4.077114353120386 0.0045207 deg node 194.854897255192 0.016208 deg peri 278.0449853072605 0.0006505 deg M 342.6431226214706 0.19641 deg tp 2459219.536372880319 (2021-Jan-05.03637288) 0.21483 TDB period 394.8345135739849 1.08 0.012159 3.329e-05 d yr n .9117743956609368 2.8077e-05 deg/d Q 1.219727851017935 2.504e-05 au   Orbit Determination Parameters    # obs. used (total)      54      data-arc span      8 days      first obs. used      2008-04-06      last obs. used      2008-04-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      5      norm. resid. RMS      .43506      source      ORB      producer      Otto Matic      solution date      2017-Apr-06 09:03:47   Additional Information  Earth MOID = .00171724 au   Jupiter MOID = 3.83632 au   T_jup = 5.826  [ 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 28.3   n/a MPO138179   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-07 22:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin