+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   6123 Aristoteles (1987 SH2) Classification: Main-belt Asteroid          SPK-ID: 2006123 [ 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 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06294347996078321 4.1695e-08   a 2.330535878956161 6.5396e-09 au q 2.183843840561198 9.7295e-08 au i 9.495106741890831 4.4503e-06 deg node 172.8482640134923 1.9993e-05 deg peri 182.7460546557497 3.3675e-05 deg M 74.56089756942687 2.6053e-05 deg tp 2458731.352256205547 (2019-Sep-04.85225621) 9.4218e-05 TDB period 1299.517453847461 3.56 5.4698e-06 1.498e-08 d yr n .2770259059885296 1.166e-09 deg/d Q 2.477227917351125 6.9512e-09 au   Orbit Determination Parameters    # obs. used (total)      2189      data-arc span      23806 days (65.18 yr)      first obs. used      1955-09-13      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47741      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:25:26   Additional Information  Earth MOID = 1.17882 au   Jupiter MOID = 2.76629 au   T_jup = 3.550  [ 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 13.5   n/a MPO502212   diameter diameter 6.946 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.164   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   6123 Aristoteles (1987 SH2)          Discovered 1987-Sep-19 by Elst, E. W. at Rozhen Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1987 SH2 = 1955 RU = 1969 QE = 1971 BJ2 = 1975 EL3 = 1980 TR10 = 1982 DF6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-22 14:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin