+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120722 (1997 SV13) Classification: Outer Main-belt Asteroid          SPK-ID: 2120722 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07495596937296033 4.5379e-08   a 3.227383760525934 2.7791e-08 au q 2.985472082217163 1.4226e-07 au i 5.018337888723279 7.0423e-06 deg node 321.6648694451939 6.7384e-05 deg peri 291.8144594957177 8.8543e-05 deg M 117.1444363903616 5.9825e-05 deg tp 2458511.382137357709 (2019-Jan-27.88213736) 0.00034912 TDB period 2117.748295997063 5.80 2.7354e-05 7.489e-08 d yr n .1699918732931891 2.1957e-09 deg/d Q 3.469295438834705 2.9874e-08 au   Orbit Determination Parameters    # obs. used (total)      411      data-arc span      8500 days (23.27 yr)      first obs. used      1997-09-28      last obs. used      2021-01-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50434      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:25:45   Additional Information  Earth MOID = 1.97409 au   Jupiter MOID = 1.61347 au   T_jup = 3.177  [ 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 15.1   n/a MPO475060   diameter diameter 6.435 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.039   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120722 (1997 SV13)          Discovered 1997-Sep-28 by Spacewatch at Kitt Peak Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1997 SV13 = 2002 PT158  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-02 05:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin