+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   295513 (2008 RR82) Classification: Jupiter Trojan          SPK-ID: 2295513 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06025874184934024 9.3116e-08   a 5.130581520419254 1.7621e-07 au q 4.821419133043315 5.7694e-07 au i 7.331158004946711 9.6787e-06 deg node 190.8568861264199 5.0316e-05 deg peri 194.9538777361453 8.155e-05 deg M 324.097885990087 6.2424e-05 deg tp 2459423.817123780316 (2021-Jul-28.31712378) 0.00073238 TDB period 4244.712846681838 11.62 0.00021868 5.987e-07 d yr n .08481139078263396 4.3693e-09 deg/d Q 5.439743907795194 1.8683e-07 au   Orbit Determination Parameters    # obs. used (total)      142      data-arc span      6825 days (18.69 yr)      first obs. used      2002-02-13      last obs. used      2020-10-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62612      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:49:06   Additional Information  Earth MOID = 3.8258 au   Jupiter MOID = .0216702 au   T_jup = 2.980  [ 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 14.0   n/a MPO413252   295513 (2008 RR82)          Discovered 2008-Sep-04 by Spacewatch at Kitt Peak Reference: 20110912/Numbers.arc Last Updated: 2011-09-14 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-23 17:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin