+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   226786 (2004 RD160) Classification: Main-belt Asteroid          SPK-ID: 2226786 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04059022244265082 5.0382e-08   a 2.736761918989338 2.3352e-08 au q 2.625676143924984 1.3977e-07 au i 5.984277564717414 6.6279e-06 deg node 321.72670706581 5.2862e-05 deg peri 116.4446392928469 0.00010108 deg M 86.16707661670743 8.5164e-05 deg tp 2458604.684486091657 (2019-May-01.18448609) 0.00039119 TDB period 1653.689443833058 4.53 2.1166e-05 5.795e-08 d yr n .2176950462751713 2.7863e-09 deg/d Q 2.847847694053691 2.43e-08 au   Orbit Determination Parameters    # obs. used (total)      259      data-arc span      7089 days (19.41 yr)      first obs. used      2000-11-19      last obs. used      2020-04-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58372      source      ORB      producer      Otto Matic      solution date      2020-May-21 10:30:01   Additional Information  Earth MOID = 1.64812 au   Jupiter MOID = 2.24993 au   T_jup = 3.343  [ 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 16.0   n/a MPO470426   diameter diameter 3.744 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.050   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   226786 (2004 RD160)          Discovered 2004-Sep-10 by LINEAR at Socorro Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 Alternate Designations  2004 RD160 = 2005 YG174  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-25 15:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin