+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   46947 (1998 SZ111) Classification: Main-belt Asteroid          SPK-ID: 2046947 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2023984655768722 4.1573e-08   a 2.594842770613476 1.1169e-08 au q 2.069650575428069 1.045e-07 au i 8.033214065418328 6.1705e-06 deg node 28.94313896868695 2.7699e-05 deg peri 300.9886922725169 3.2046e-05 deg M 94.21198151787468 1.6133e-05 deg tp 2458600.952299110727 (2019-Apr-27.45229911) 6.7378e-05 TDB period 1526.739699162873 4.18 9.8577e-06 2.699e-08 d yr n .2357965802535898 1.5225e-09 deg/d Q 3.120034965798884 1.343e-08 au   Orbit Determination Parameters    # obs. used (total)      831      data-arc span      8325 days (22.79 yr)      first obs. used      1997-04-14      last obs. used      2020-01-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5365      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 08:37:56   Additional Information  Earth MOID = 1.07308 au   Jupiter MOID = 2.29289 au   T_jup = 3.375  [ hide covariance matrix ] Orbital Elements at Epoch 2457339.5 (2015-Nov-13.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2042554013783748 4.1755e-08   q 2.06362614990086 1.0516e-07 au tp 2457074.969594575703 (2015-Feb-21.46959458) 6.3422e-05 TDB node 28.9638587154903 2.7679e-05 deg peri 300.9945815151313 3.1945e-05 deg i 8.040303523898178 6.1726e-06 deg   Orbit Determination Parameters    # obs. used (total)      831      data-arc span      8325 days (22.79 yr)      first obs. used      1997-04-14      last obs. used      2020-01-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5365      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 08:37:56   Additional Information  Jupiter MOID = 2.29289 au   T_jup = 3.375  Orbit Covariance (6×6)   e q tp node peri i e 1.743462242724646E-15 -4.377862356543196E-15 1.103213406448121E-12 -4.576354895155232E-15 2.249399947550616E-13 -7.669713546056261E-16 q -4.377862356543196E-15 1.105783731843719E-14 -2.730679857096943E-12 1.033501194306397E-14 -5.50990268367971E-13 2.131743464658927E-15 tp 1.103213406448121E-12 -2.730679857096943E-12 4.02233210983901E-9 -9.425089559329921E-12 1.017565447565892E-9 -2.129122979463002E-12 node -4.576354895155232E-15 1.033501194306397E-14 -9.425089559329921E-12 7.661263516977697E-10 -7.602592525190005E-10 3.091361815217696E-11 peri 2.249399947550616E-13 -5.50990268367971E-13 1.017565447565892E-9 -7.602592525190005E-10 1.020493128734863E-9 -3.117427987525417E-11 i -7.669713546056261E-16 2.131743464658927E-15 -2.129122979463002E-12 3.091361815217696E-11 -3.117427987525417E-11 3.810122091444451E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.4   n/a MPO436110   46947 (1998 SZ111)          Discovered 1998-Sep-26 by LINEAR at Socorro Reference: 20020921/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1998 SZ111 = 2000 BR8  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-10 09:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin