+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   434002 (2000 SM320) Classification: Main-belt Asteroid          SPK-ID: 2434002 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1552052349925781 1.9412e-07   a 2.601980133843457 2.9488e-08 au q 2.198139195724263 4.9169e-07 au i 17.52817405018196 2.2991e-05 deg node 34.52265812906133 1.7896e-05 deg peri 49.33906758143701 6.4354e-05 deg M 205.3438573374609 6.3096e-05 deg tp 2459659.095963728484 (2022-Mar-20.59596373) 0.00027255 TDB period 1533.043194149723 4.20 2.6061e-05 7.135e-08 d yr n .2348270429520859 3.9919e-09 deg/d Q 3.005821071962651 3.4065e-08 au   Orbit Determination Parameters    # obs. used (total)      102      data-arc span      6797 days (18.61 yr)      first obs. used      2000-09-29      last obs. used      2019-05-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49715      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 09:45:40   Additional Information  Earth MOID = 1.24794 au   Jupiter MOID = 2.46051 au   T_jup = 3.332  [ hide covariance matrix ] Orbital Elements at Epoch 2457529.5 (2016-May-21.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1568476453141 1.9522e-07   q 2.191441633404023 4.9571e-07 au tp 2458125.829149317697 (2018-Jan-07.32914932) 0.00025992 TDB node 34.60064819082738 1.7871e-05 deg peri 49.03486966664855 6.3499e-05 deg i 17.5523653683114 2.3011e-05 deg   Orbit Determination Parameters    # obs. used (total)      102      data-arc span      6797 days (18.61 yr)      first obs. used      2000-09-29      last obs. used      2019-05-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49715      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 09:45:40   Additional Information  Jupiter MOID = 2.46051 au   T_jup = 3.332  Orbit Covariance (6×6)   e q tp node peri i e 3.810989636141137E-14 -9.668771831745969E-14 -2.244936721290689E-11 -4.476398389000551E-14 -7.612168718002552E-12 1.235189826210153E-13 q -9.668771831745969E-14 2.457297606096581E-13 6.036789191357468E-11 1.136704009770746E-13 1.997246079273622E-11 -3.055243638624725E-13 tp -2.244936721290689E-11 6.036789191357468E-11 6.756054197604757E-8 1.885317039343338E-11 1.539641278410866E-8 -2.050716814380762E-10 node -4.476398389000551E-14 1.136704009770746E-13 1.885317039343338E-11 3.193775852102032E-10 -2.965333161034873E-10 1.079658811981238E-11 peri -7.612168718002552E-12 1.997246079273622E-11 1.539641278410866E-8 -2.965333161034873E-10 4.032068519985577E-9 -6.25067455042298E-11 i 1.235189826210153E-13 -3.055243638624725E-13 -2.050716814380762E-10 1.079658811981238E-11 -6.25067455042298E-11 5.294902265117601E-10 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.7   n/a MPO477032   diameter diameter 1.889 km 0.511 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.072   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   434002 (2000 SM320)          Discovered 2000-Sep-29 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-06-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-15 17:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin