+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   55617 (2002 TF79) Classification: Main-belt Asteroid          SPK-ID: 2055617 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1122095735430027 3.7848e-08   a 3.06828034729559 1.9666e-08 au q 2.723989918015176 1.1567e-07 au i 13.04560153733614 4.1215e-06 deg node 63.2067178479484 2.1013e-05 deg peri 18.56110565388111 3.5955e-05 deg M 57.48214579339299 2.5834e-05 deg tp 2458687.047703872852 (2019-Jul-22.54770387) 0.00014126 TDB period 1963.093497089724 5.37 1.8874e-05 5.167e-08 d yr n .1833840316488736 1.7631e-09 deg/d Q 3.412570776576004 2.1873e-08 au   Orbit Determination Parameters    # obs. used (total)      1215      data-arc span      8185 days (22.41 yr)      first obs. used      1997-11-29      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50755      source      ORB      producer      Otto Matic      solution date      2020-May-20 10:58:01   Additional Information  Earth MOID = 1.74255 au   Jupiter MOID = 1.89779 au   T_jup = 3.183  [ 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 13.8   n/a MPO280075   diameter diameter 5.857 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.187   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   55617 (2002 TF79)          Discovered 2002-Oct-01 by LINEAR at Socorro Reference: 20030216/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2002 TF79 = 1997 WB41 = 2000 KB20 = 2001 ON27  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-15 02:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin