+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78506 (2002 RU84) Classification: Main-belt Asteroid          SPK-ID: 2078506 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1759393575871973 4.155e-08   a 2.303071464798205 1.038e-08 au q 1.897870550804204 9.6921e-08 au i 1.715776749905711 5.8123e-06 deg node 343.6274808631491 0.00015532 deg peri 308.0127877894638 0.00015615 deg M 74.39679741069654 1.7116e-05 deg tp 2458736.677829853485 (2019-Sep-10.17782985) 6.0516e-05 TDB period 1276.613840357193 3.50 8.6307e-06 2.363e-08 d yr n .2819960027217572 1.9065e-09 deg/d Q 2.708272378792207 1.2206e-08 au   Orbit Determination Parameters    # obs. used (total)      581      data-arc span      9744 days (26.68 yr)      first obs. used      1994-03-06      last obs. used      2020-11-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59138      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:12:47   Additional Information  Earth MOID = .882273 au   Jupiter MOID = 2.47013 au   T_jup = 3.569  [ hide covariance matrix ] Orbital Elements at Epoch 2456492.5 (2013-Jul-19.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1760584040446221 4.1455e-08   q 1.897512289386851 9.6674e-08 au tp 2456181.040942119197 (2012-Sep-10.54094212) 6.1368e-05 TDB node 343.7561841437498 0.00015555 deg peri 307.5217834997406 0.00015637 deg i 1.715233170865426 5.8062e-06 deg   Orbit Determination Parameters    # obs. used (total)      581      data-arc span      9744 days (26.68 yr)      first obs. used      1994-03-06      last obs. used      2020-11-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59138      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:12:47   Additional Information  Jupiter MOID = 2.47013 au   T_jup = 3.569  Orbit Covariance (6×6)   e q tp node peri i e 1.718511899522994E-15 -3.992069049285045E-15 5.20761430347413E-13 1.790849857925353E-14 1.205399298488997E-13 -5.823560411327543E-16 q -3.992069049285045E-15 9.345877425559748E-15 -1.292690355144775E-12 -4.199069422646659E-14 -2.979191687325369E-13 1.493716000628062E-15 tp 5.20761430347413E-13 -1.292690355144775E-12 3.765997679962455E-9 5.490928335464907E-11 9.976851271488103E-10 8.057339431617135E-13 node 1.790849857925353E-14 -4.199069422646659E-14 5.490928335464907E-11 2.419590295933733E-8 -2.416931081927177E-8 1.048542914102661E-10 peri 1.205399298488997E-13 -2.979191687325369E-13 9.976851271488103E-10 -2.416931081927177E-8 2.445096323573718E-8 -1.046133411931744E-10 i -5.823560411327543E-16 1.493716000628062E-15 8.057339431617135E-13 1.048542914102661E-10 -1.046133411931744E-10 3.371190900023506E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.2   n/a MPO432335   78506 (2002 RU84)          Discovered 2002-Sep-05 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  2002 RU84 = 1994 EK8 = 2001 FH103  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 20:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin