+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74348 (1998 VT53) Classification: Main-belt Asteroid          SPK-ID: 2074348 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1076958294924321 5.5863e-08   a 2.712072571987738 1.7719e-08 au q 2.419993666703844 1.5218e-07 au i 11.96620901222322 6.0969e-06 deg node 12.84479067042443 2.5543e-05 deg peri 32.19154617917777 3.8132e-05 deg M 294.4645426556717 2.6888e-05 deg tp 2459297.477960571323 (2021-Mar-23.97796057) 0.00012217 TDB period 1631.362168481593 4.47 1.5987e-05 4.377e-08 d yr n .2206744810902865 2.1626e-09 deg/d Q 3.004151477271631 1.9627e-08 au   Orbit Determination Parameters    # obs. used (total)      679      data-arc span      7930 days (21.71 yr)      first obs. used      1998-11-14      last obs. used      2020-07-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5711      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 07:12:11   Additional Information  Earth MOID = 1.43567 au   Jupiter MOID = 2.44572 au   T_jup = 3.323  [ hide covariance matrix ] Orbital Elements at Epoch 2456550.5 (2013-Sep-15.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1104003372035489 5.6512e-08   q 2.411180776126302 1.5467e-07 au tp 2456031.641202622981 (2012-Apr-14.14120262) 0.00011646 TDB node 13.03678532839684 2.5483e-05 deg peri 31.27611779680107 3.7332e-05 deg i 11.98650464436777 6.1046e-06 deg   Orbit Determination Parameters    # obs. used (total)      679      data-arc span      7930 days (21.71 yr)      first obs. used      1998-11-14      last obs. used      2020-07-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5711      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 07:12:11   Additional Information  Jupiter MOID = 2.44572 au   T_jup = 3.323  Orbit Covariance (6×6)   e q tp node peri i e 3.193572248153878E-15 -8.696795835495298E-15 -1.386342744770767E-12 -6.854674428403481E-15 -4.117033757387856E-13 -9.59578883235972E-15 q -8.696795835495298E-15 2.39212875272131E-14 3.572436106596646E-12 1.562862253990646E-14 1.092101759462028E-12 2.727945020091822E-14 tp -1.386342744770767E-12 3.572436106596646E-12 1.35627956969986E-8 2.664295145194918E-11 3.196909054980198E-9 -4.383770364076003E-12 node -6.854674428403481E-15 1.562862253990646E-14 2.664295145194918E-11 6.493994191840872E-10 -6.280374069803842E-10 3.51365376820747E-12 peri -4.117033757387856E-13 1.092101759462028E-12 3.196909054980198E-9 -6.280374069803842E-10 1.393675399481778E-9 -4.009839283763098E-12 i -9.59578883235972E-15 2.727945020091822E-14 -4.383770364076003E-12 3.51365376820747E-12 -4.009839283763098E-12 3.726646810256533E-11 [ 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 15.0   n/a MPO439561   74348 (1998 VT53)          Discovered 1998-Nov-14 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 VT53 = 2000 EA89  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-22 01:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin