+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4602 Heudier (1986 UD3) Classification: Main-belt Asteroid          SPK-ID: 2004602 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1640258265120428 2.8481e-08   a 2.618705439447872 8.8312e-09 au q 2.189170115350853 7.5866e-08 au i 12.39241851554899 8.8301e-07 deg node 237.2229201241184 3.531e-06 deg peri 164.2996973833076 7.0051e-06 deg M 349.107774463441 5.4783e-06 deg tp 2459247.331980786445 (2021-Feb-01.83198079) 2.3562e-05 TDB period 1547.848327830936 4.24 7.8298e-06 2.144e-08 d yr n .2325809276833235 1.1765e-09 deg/d Q 3.048240763544892 1.028e-08 au   Orbit Determination Parameters    # obs. used (total)      2486      data-arc span      24088 days (65.95 yr)      first obs. used      1955-03-24      last obs. used      2021-03-05      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .35424      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 16:32:44   Additional Information  Earth MOID = 1.20003 au   Jupiter MOID = 2.35498 au   T_jup = 3.354  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.55   n/a E2021B10   diameter diameter 8.101 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.309   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   4602 Heudier (1986 UD3)          Discovered 1986-Oct-28 by CERGA at Caussols Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1986 UD3 = 1961 VU = 1978 YA2 = 1982 VY10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 10:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin