+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   344907 (2004 RJ186) Classification: Main-belt Asteroid          SPK-ID: 2344907 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ 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 .13209145922801 6.7857e-08   a 2.410191777867066 1.8572e-08 au q 2.091826028909253 1.6122e-07 au i 5.620772776845195 6.2787e-06 deg node 283.9161755261416 8.6299e-05 deg peri 8.04635682700923 9.2676e-05 deg M 121.8098990364057 3.1473e-05 deg tp 2458538.059448791487 (2019-Feb-23.55944879) 0.00011868 TDB period 1366.708286863523 3.74 1.5797e-05 4.325e-08 d yr n .2634066124133694 3.0445e-09 deg/d Q 2.728557526824878 2.1025e-08 au   Orbit Determination Parameters    # obs. used (total)      159      data-arc span      5556 days (15.21 yr)      first obs. used      2004-09-10      last obs. used      2019-11-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54654      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 17:01:23   Additional Information  Earth MOID = 1.07577 au   Jupiter MOID = 2.43515 au   T_jup = 3.502  [ hide covariance matrix ] Orbital Elements at Epoch 2457325.5 (2015-Oct-30.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1324939380440612 6.7812e-08   q 2.090898885243826 1.6127e-07 au tp 2457172.706278514001 (2015-May-30.20627851) 0.00011756 TDB node 283.9688005000891 8.6375e-05 deg peri 8.309518616798512 9.2729e-05 deg i 5.617941350259786 6.2781e-06 deg   Orbit Determination Parameters    # obs. used (total)      159      data-arc span      5556 days (15.21 yr)      first obs. used      2004-09-10      last obs. used      2019-11-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54654      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 17:01:23   Additional Information  Jupiter MOID = 2.43515 au   T_jup = 3.502  Orbit Covariance (6×6)   e q tp node peri i e 4.598512250687777E-15 -1.08828678348285E-14 3.020578921673958E-12 -9.269590932481795E-15 6.973516914581201E-13 -1.062147339025699E-14 q -1.08828678348285E-14 2.600759680135665E-14 -7.317985259802911E-12 2.595943205525819E-14 -1.699472097413237E-12 2.626330281479388E-14 tp 3.020578921673958E-12 -7.317985259802911E-12 1.38200675137497E-8 -7.824667799277013E-11 4.040805380641018E-9 -2.526857864594017E-11 node -9.269590932481795E-15 2.595943205525819E-14 -7.824667799277013E-11 7.460674206457386E-9 -7.446729785797815E-9 2.441139819684794E-10 peri 6.973516914581201E-13 -1.699472097413237E-12 4.040805380641018E-9 -7.446729785797815E-9 8.598742220270023E-9 -2.500998016035952E-10 i -1.062147339025699E-14 2.626330281479388E-14 -2.526857864594017E-11 2.441139819684794E-10 -2.500998016035952E-10 3.941427595732259E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.4   n/a MPO494804   344907 (2004 RJ186)          Discovered 2004-Sep-10 by LINEAR at Socorro Reference: 20121128/Numbers.arc Last Updated: 2012-12-03 [ show close-approach data ] Alternate Designations  2004 RJ186 = 2005 YD236  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 02:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin