+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   103019 (1999 XG106) Classification: Main-belt Asteroid          SPK-ID: 2103019 [ 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 .1668990743851288 3.531e-08   a 3.022210246863724 1.8697e-08 au q 2.517806154064917 1.1077e-07 au i 1.758194468117336 3.9059e-06 deg node 238.0922852141723 0.00016075 deg peri 222.4006520235661 0.0001614 deg M 352.9399963957215 1.5054e-05 deg tp 2459238.134648092366 (2021-Jan-23.63464809) 8.038e-05 TDB period 1919.046231795277 5.25 1.7808e-05 4.876e-08 d yr n .1875931877176395 1.7408e-09 deg/d Q 3.526614339662532 2.1817e-08 au   Orbit Determination Parameters    # obs. used (total)      658      data-arc span      9483 days (25.96 yr)      first obs. used      1995-02-01      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54214      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:33:04   Additional Information  Earth MOID = 1.53485 au   Jupiter MOID = 1.64012 au   T_jup = 3.224  [ 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 15.4   n/a MPO453482   diameter diameter 5.001 km 0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.049   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   103019 (1999 XG106)          Discovered 1999-Dec-11 by Comba, P. G. at Prescott Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 XG106 = 1995 CT3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-04 20:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin