+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17123 (1999 JQ63) Classification: Main-belt Asteroid          SPK-ID: 2017123 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09836282711358439 3.933e-08   a 2.98968676210194 1.9651e-08 au q 2.695612719997535 1.2386e-07 au i 11.83153683130407 4.466e-06 deg node 84.71114835312751 2.0907e-05 deg peri 228.7802019577684 3.1351e-05 deg M 5.276881899607483 2.5073e-05 deg tp 2459172.823457599712 (2020-Nov-19.32345760) 0.00013141 TDB period 1888.152028728326 5.17 1.8616e-05 5.097e-08 d yr n .1906626132443692 1.8799e-09 deg/d Q 3.283760804206345 2.1584e-08 au   Orbit Determination Parameters    # obs. used (total)      1534      data-arc span      14557 days (39.85 yr)      first obs. used      1980-11-29      last obs. used      2020-10-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50683      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:54:09   Additional Information  Earth MOID = 1.69546 au   Jupiter MOID = 1.94897 au   T_jup = 3.217  [ 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 13.36   n/a E2021B10   diameter diameter 6.313 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.255   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17123 (1999 JQ63)          Discovered 1999-May-10 by LINEAR at Socorro Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 JQ63 = 1980 WE3 = 1990 UZ10 = 1999 LX18  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 12:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin