+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   233434 (2006 HZ55) Classification: Main-belt Asteroid          SPK-ID: 2233434 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2054427860780614 5.7307e-08   a 2.622938309154592 2.5202e-08 au q 2.084074555210993 1.4763e-07 au i 13.23825512128062 6.3285e-06 deg node 71.85183209627549 2.4024e-05 deg peri 42.95545130181301 2.7953e-05 deg M 191.5558510425284 1.7545e-05 deg tp 2459726.495569628623 (2022-May-26.99556963) 8.2354e-05 TDB period 1551.602751914473 4.25 2.2362e-05 6.122e-08 d yr n .2320181499780196 3.3439e-09 deg/d Q 3.161802063098191 3.0379e-08 au   Orbit Determination Parameters    # obs. used (total)      354      data-arc span      7197 days (19.70 yr)      first obs. used      2000-11-30      last obs. used      2020-08-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60179      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 01:53:31   Additional Information  Earth MOID = 1.1203 au   Jupiter MOID = 2.07059 au   T_jup = 3.337  [ 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 15.9   n/a MPO391214   diameter diameter 3.600 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.072   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   233434 (2006 HZ55)          Discovered 2006-Apr-26 by CSS at Catalina Reference: 20100228/Numbers.arc Last Updated: 2010-03-03 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-02 11:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin