+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1363689080212104 4.4579e-08   a 2.676822383174433 1.2806e-08 au q 2.311787037814201 1.2065e-07 au i 12.69591398850401 5.1292e-06 deg node 145.3097281606826 1.7223e-05 deg peri 350.4435565956949 2.2602e-05 deg M 274.865315015678 1.5122e-05 deg tp 2459378.796037450488 (2021-Jun-13.29603745) 6.7945e-05 TDB period 1599.66027368581 4.38 1.1479e-05 3.143e-08 d yr n .2250477841588931 1.6149e-09 deg/d Q 3.041857728534664 1.4552e-08 au   Orbit Determination Parameters    # obs. used (total)      1611      data-arc span      18524 days (50.72 yr)      first obs. used      1969-03-13      last obs. used      2019-11-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48699      source      ORB      producer      Otto Matic      solution date      2019-Dec-13 23:55:19   Additional Information  Earth MOID = 1.3262 au   Jupiter MOID = 1.98768 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 ] 2020-Sep-18 12:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin