+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   39103 (2000 WQ17) Classification: Main-belt Asteroid          SPK-ID: 2039103 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08037690354679342 3.8897e-08   a 3.076958838869091 1.7922e-08 au q 2.829642415059857 1.1957e-07 au i 3.630365668411712 3.9803e-06 deg node 151.4008059853456 6.8541e-05 deg peri 280.5594406677691 7.3399e-05 deg M 221.0744069786957 2.8086e-05 deg tp 2459761.282852511147 (2022-Jun-30.78285251) 0.00015666 TDB period 1971.428164873934 5.40 1.7224e-05 4.716e-08 d yr n .1826087333103617 1.5955e-09 deg/d Q 3.324275262678326 1.9363e-08 au   Orbit Determination Parameters    # obs. used (total)      1217      data-arc span      10315 days (28.24 yr)      first obs. used      1992-05-02      last obs. used      2020-07-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5565      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 03:31:51   Additional Information  Earth MOID = 1.84722 au   Jupiter MOID = 1.89252 au   T_jup = 3.221  [ 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 14.23   n/a E2021B10   diameter diameter 8.060 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.057   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   39103 (2000 WQ17)          Discovered 2000-Nov-21 by LINEAR at Socorro Reference: 20020328/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2000 WQ17 = 1997 ED57 = 1999 RD58  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-01 21:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin