+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20173 (1996 XO19) Classification: Main-belt Asteroid          SPK-ID: 2020173 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1727778233281005 3.0737e-08   a 2.570710499525867 1.1782e-08 au q 2.126548735011093 8.0394e-08 au i 4.727122742084266 5.7694e-06 deg node 130.3491324759608 7.3149e-05 deg peri 325.4375041301403 7.8618e-05 deg M 292.9733430182593 2.9277e-05 deg tp 2459480.800093219574 (2021-Sep-23.30009322) 0.00012361 TDB period 1505.491070314544 4.12 1.0349e-05 2.833e-08 d yr n .2391246332167116 1.6439e-09 deg/d Q 3.01487226404064 1.3817e-08 au   Orbit Determination Parameters    # obs. used (total)      1355      data-arc span      10275 days (28.13 yr)      first obs. used      1992-12-23      last obs. used      2021-02-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52397      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:14:32   Additional Information  Earth MOID = 1.14511 au   Jupiter MOID = 2.15977 au   T_jup = 3.404  [ 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 14.71   n/a E2021B10   diameter diameter 2.868 km 0.686 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.340   0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   20173 (1996 XO19)          Discovered 1996-Dec-08 by Kobayashi, T. at Oizumi Reference: 20010109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1996 XO19 = 1992 YW5 = 1998 KD62  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 21:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin