+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1122369634750622 3.6461e-08   a 3.067615522937258 1.9339e-08 au q 2.723315671533815 1.1178e-07 au i 13.04604458301527 4.0517e-06 deg node 63.19990785714885 2.0535e-05 deg peri 18.45191143527946 3.5166e-05 deg M 94.27461723921225 2.5399e-05 deg tp 2458686.584053200448 (2019-Jul-22.08405320) 0.00013895 TDB period 1962.455497203401 5.37 1.8558e-05 5.081e-08 d yr n .1834436503212523 1.7347e-09 deg/d Q 3.411915374340701 2.151e-08 au   Orbit Determination Parameters    # obs. used (total)      1286      data-arc span      8507 days (23.29 yr)      first obs. used      1997-11-29      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50181      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 11:11:06   Additional Information  Earth MOID = 1.7414 au   Jupiter MOID = 1.89904 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 13.90   n/a E2021B10   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-Apr-20 13:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin