+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120938 (1998 SB162) Classification: Main-belt Asteroid          SPK-ID: 2120938 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1175138623266005 5.7238e-08   a 3.10665387290687 2.4908e-08 au q 2.741578977389691 1.681e-07 au i 7.874070197797746 5.3106e-06 deg node 156.80848435 3.7869e-05 deg peri 201.0834872278392 4.3784e-05 deg M 38.9943489203112 2.0267e-05 deg tp 2458983.860869850122 (2020-May-14.36086985) 0.00011253 TDB period 2000.035620887954 5.48 2.4053e-05 6.585e-08 d yr n .1799967941771813 2.1647e-09 deg/d Q 3.471728768424048 2.7835e-08 au   Orbit Determination Parameters    # obs. used (total)      508      data-arc span      8144 days (22.30 yr)      first obs. used      1998-09-26      last obs. used      2021-01-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57255      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:26:15   Additional Information  Earth MOID = 1.73715 au   Jupiter MOID = 1.96928 au   T_jup = 3.195  [ 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 MPO453680   diameter diameter 6.116 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.043   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120938 (1998 SB162)          Discovered 1998-Sep-26 by LINEAR at Socorro Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1998 SB162 = 2003 QJ7  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-07 07:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin