+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70183 (1999 RA3) Classification: Main-belt Asteroid          SPK-ID: 2070183 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1579361287185773 3.2124e-08   a 2.418730099026491 7.4935e-09 au q 2.036725230771146 7.7803e-08 au i 2.40659277917797 5.0391e-06 deg node 190.9856921750284 6.7134e-05 deg peri 238.3470229621428 6.9001e-05 deg M 183.203143591916 1.5098e-05 deg tp 2459875.263493916817 (2022-Oct-22.76349392) 5.8558e-05 TDB period 1373.977245666382 3.76 6.3851e-06 1.748e-08 d yr n .2620130727313458 1.2176e-09 deg/d Q 2.800734967281837 8.6769e-09 au   Orbit Determination Parameters    # obs. used (total)      1370      data-arc span      13020 days (35.65 yr)      first obs. used      1984-10-18      last obs. used      2020-06-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50074      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 12:47:59   Additional Information  Earth MOID = 1.05158 au   Jupiter MOID = 2.47961 au   T_jup = 3.497  [ 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 15.28   n/a E2021B10   diameter diameter 4.913 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.051   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70183 (1999 RA3)          Discovered 1999-Sep-06 by Korlevic, K. at Visnjan Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1999 RA3 = 1984 UF2 = 2001 FX40  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-20 02:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin