+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   277137 (2005 JG118) Classification: Main-belt Asteroid          SPK-ID: 2277137 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2811603156667162 5.9261e-08   a 2.695494744195681 1.552e-08 au q 1.937628591039649 1.5772e-07 au i 13.48407521759576 8.1155e-06 deg node 84.39712198195062 3.5003e-05 deg peri 256.2792761655522 3.9812e-05 deg M 75.04554498735492 1.4884e-05 deg tp 2458663.539824287721 (2019-Jun-29.03982429) 6.6899e-05 TDB period 1616.427241308732 4.43 1.3961e-05 3.822e-08 d yr n .2227133958151607 1.9235e-09 deg/d Q 3.453360897351713 1.9884e-08 au   Orbit Determination Parameters    # obs. used (total)      206      data-arc span      6763 days (18.52 yr)      first obs. used      2001-07-22      last obs. used      2020-01-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54389      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 14:09:37   Additional Information  Earth MOID = .980192 au   Jupiter MOID = 2.12184 au   T_jup = 3.274  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.8   n/a MPO440343   277137 (2005 JG118)          Discovered 2005-May-10 by Spacewatch at Kitt Peak Reference: 20110517/Numbers.arc Last Updated: 2011-05-20 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-14 10:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin