+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58274 (1993 TY31) Classification: Main-belt Asteroid          SPK-ID: 2058274 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1857683965528982 3.4847e-08   a 2.696335841797337 1.2208e-08 au q 2.195441855898536 9.7395e-08 au i 11.53020805217758 4.6382e-06 deg node 188.4122774905791 1.5985e-05 deg peri 230.2777933574422 1.9874e-05 deg M 340.4565691784138 1.2662e-05 deg tp 2459088.292559185814 (2020-Aug-26.79255919) 5.7173e-05 TDB period 1617.183881142503 4.43 1.0983e-05 3.007e-08 d yr n .2226091937953699 1.5118e-09 deg/d Q 3.197229827696137 1.4476e-08 au   Orbit Determination Parameters    # obs. used (total)      1266      data-arc span      10781 days (29.52 yr)      first obs. used      1991-05-07      last obs. used      2020-11-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54767      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 03:57:00   Additional Information  Earth MOID = 1.22576 au   Jupiter MOID = 2.25514 au   T_jup = 3.316  [ 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 14.4   n/a MPO417227   diameter diameter 7.707 km 0.618 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.027   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   58274 (1993 TY31)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1993 TY31 = 1996 MY1 = 2002 RT64  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 11:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin