+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120585 (1995 SA24) Classification: Main-belt Asteroid          SPK-ID: 2120585 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07506785750210269 4.4924e-08   a 2.720591648947501 1.6213e-08 au q 2.5163626627229 1.1955e-07 au i 3.635089776313011 5.1778e-06 deg node 151.9083636791871 7.3619e-05 deg peri 347.5829170943684 8.1338e-05 deg M 51.85476006651939 3.411e-05 deg tp 2458764.408910600726 (2019-Oct-07.90891060) 0.00015493 TDB period 1639.054776740064 4.49 1.4651e-05 4.011e-08 d yr n .2196387851759344 1.9633e-09 deg/d Q 2.924820635172103 1.743e-08 au   Orbit Determination Parameters    # obs. used (total)      504      data-arc span      8983 days (24.59 yr)      first obs. used      1995-09-19      last obs. used      2020-04-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55897      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:38:37   Additional Information  Earth MOID = 1.52954 au   Jupiter MOID = 2.0789 au   T_jup = 3.352  [ 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 16.0   n/a MPO469250   diameter diameter 3.604 km 0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.065   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120585 (1995 SA24)          Discovered 1995-Sep-19 by Spacewatch at Kitt Peak Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1995 SA24 = 2000 WJ168  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-29 10:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin