+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1123310262726522 3.6264e-08   a 3.066901514486026 1.7671e-08 au q 2.72239331988666 1.1015e-07 au i 13.04721925957284 3.8976e-06 deg node 63.19581743349966 1.774e-05 deg peri 18.34214598702761 2.8155e-05 deg M 130.3528454153596 2.0723e-05 deg tp 2458686.160137793035 (2019-Jul-21.66013779) 0.00011176 TDB period 1961.770374706183 5.37 1.6955e-05 4.642e-08 d yr n .1835077156030137 1.586e-09 deg/d Q 3.411409709085393 1.9656e-08 au   Orbit Determination Parameters    # obs. used (total)      1472      data-arc span      8595 days (23.53 yr)      first obs. used      1997-11-29      last obs. used      2021-06-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49303      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 08:18:34   Additional Information  Earth MOID = 1.74073 au   Jupiter MOID = 1.90039 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 13.91   n/a MPCxxxxx   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 ] 2021-Jul-24 14:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin