+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15163 (2000 GB4) Classification: Main-belt Asteroid          SPK-ID: 2015163 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1364232239409274 1.5182e-08   a 2.67744861945625 1.0493e-08 au q 2.312182446853843 4.3457e-08 au i 12.69588737336092 7.5146e-07 deg node 145.3067069710561 4.0652e-06 deg peri 350.3564841978491 8.1204e-06 deg M 319.9555601544193 8.6533e-06 deg tp 2459378.499944636218 (2021-Jun-12.99994464) 3.8546e-05 TDB period 1600.22166163751 4.38 9.4071e-06 2.576e-08 d yr n .2249688331500345 1.3225e-09 deg/d Q 3.042714792058657 1.1925e-08 au   Orbit Determination Parameters    # obs. used (total)      2059      data-arc span      18994 days (52.00 yr)      first obs. used      1969-03-13      last obs. used      2021-03-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44683      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:50:33   Additional Information  Earth MOID = 1.32652 au   Jupiter MOID = 1.98638 au   T_jup = 3.330  [ 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 13.6   n/a MPO347645   diameter diameter 10.392 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.071   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15163 (2000 GB4)          Discovered 2000-Apr-02 by Ueda, S., Kaneda, H. at Kushiro Reference: 20000523/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2000 GB4 = 1969 ER1 = 1979 OZ8 = 1982 BU3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 18:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin