+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2008 GO20) Classification: Apollo [NEO]          SPK-ID: 3408681 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4909632278544215 2.7652e-05   a 1.892805786211947 9.5401e-05 au q .9635077477118035 3.7826e-06 au i 2.249712103739645 8.6653e-05 deg node 119.5927922254292 0.00063895 deg peri 160.6434367832007 0.00059334 deg M 283.4395697693438 0.12884 deg tp 2459402.782994337544 (2021-Jul-07.28299434) 0.35569 TDB period 951.168609451683 2.60 0.071911 0.0001969 d yr n .3784817922108762 2.8614e-05 deg/d Q 2.822103824712091 0.00014224 au   Orbit Determination Parameters    # obs. used (total)      50      data-arc span      124 days      first obs. used      2008-04-09      last obs. used      2008-08-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      5      norm. resid. RMS      .57954      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 01:36:09   Additional Information  Earth MOID = .00891008 au   Jupiter MOID = 2.34656 au   T_jup = 3.799  [ 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 22.3   n/a MPO141921   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-17 01:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin