+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78440 (2002 RL13) Classification: Outer Main-belt Asteroid          SPK-ID: 2078440 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1565008173942514 3.2269e-08   a 3.234618644317169 1.9977e-08 au q 2.728398182522846 1.0562e-07 au i 2.441567417881439 3.8337e-06 deg node 104.4754879032084 8.8947e-05 deg peri 263.3550538127019 8.9969e-05 deg M 9.179116263406529 1.2677e-05 deg tp 2458946.320945086119 (2020-Apr-06.82094509) 7.4806e-05 TDB period 2124.873376618367 5.82 1.9685e-05 5.389e-08 d yr n .1694218601265185 1.5696e-09 deg/d Q 3.740839106111492 2.3104e-08 au   Orbit Determination Parameters    # obs. used (total)      1443      data-arc span      10153 days (27.80 yr)      first obs. used      1993-01-29      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53268      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:06:32   Additional Information  Earth MOID = 1.72876 au   Jupiter MOID = 1.72258 au   T_jup = 3.165  [ show covariance matrix ] [ 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 14.0   n/a MPO502629   diameter diameter 6.883 km 0.380 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.103   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   78440 (2002 RL13)          Discovered 2002-Sep-04 by LONEOS at Anderson Mesa Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2002 RL13 = 2000 GZ50  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 13:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin