+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78340 (2002 PS89) Classification: Main-belt Asteroid          SPK-ID: 2078340 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0852246233451629 4.6798e-08   a 3.1163483496158 2.4476e-08 au q 2.850758735307473 1.4294e-07 au i 15.35242845954416 5.7878e-06 deg node 211.7970532456179 1.653e-05 deg peri 98.57626495590196 4.0353e-05 deg M 102.6016710885147 3.9641e-05 deg tp 2458427.810320183132 (2018-Nov-05.31032018) 0.00021968 TDB period 2009.404745037835 5.50 2.3673e-05 6.481e-08 d yr n .1791575345330548 2.1107e-09 deg/d Q 3.381937963924126 2.6562e-08 au   Orbit Determination Parameters    # obs. used (total)      552      data-arc span      8136 days (22.28 yr)      first obs. used      1997-09-28      last obs. used      2020-01-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53919      source      ORB      producer      Otto Matic      solution date      2020-Jan-29 12:19:47   Additional Information  Earth MOID = 1.89029 au   Jupiter MOID = 1.87851 au   T_jup = 3.157  [ hide covariance matrix ] Orbital Elements at Epoch 2457247.5 (2015-Aug-13.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08886444842646876 4.7154e-08   q 2.837466862418062 1.4459e-07 au tp 2456412.894427783998 (2013-Apr-30.39442778) 0.00020687 TDB node 211.890727655623 1.6575e-05 deg peri 97.53719634004145 3.9026e-05 deg i 15.33213356273261 5.7855e-06 deg   Orbit Determination Parameters    # obs. used (total)      552      data-arc span      8136 days (22.28 yr)      first obs. used      1997-09-28      last obs. used      2020-01-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53919      source      ORB      producer      Otto Matic      solution date      2020-Jan-29 12:19:47   Additional Information  Jupiter MOID = 1.87851 au   T_jup = 3.157  Orbit Covariance (6×6)   e q tp node peri i e 2.223504172839292E-15 -6.739746305135641E-15 3.904861159301933E-12 3.276724957180293E-15 6.133420882161006E-13 5.755566180179525E-15 q -6.739746305135641E-15 2.090620835983027E-14 -1.159425222171183E-11 -8.588411486401699E-15 -1.783531554155883E-12 -1.575612178024183E-14 tp 3.904861159301933E-12 -1.159425222171183E-11 4.279526222573194E-8 5.626163017042483E-11 7.317902066067073E-9 8.694755015254431E-12 node 3.276724957180293E-15 -8.588411486401699E-15 5.626163017042483E-11 2.747227980972275E-10 -2.550782812449592E-10 -9.994423953394454E-12 peri 6.133420882161006E-13 -1.783531554155883E-12 7.317902066067073E-9 -2.550782812449592E-10 1.523042257292468E-9 1.095946002196365E-11 i 5.755566180179525E-15 -1.575612178024183E-14 8.694755015254431E-12 -9.994423953394454E-12 1.095946002196365E-11 3.34718539169781E-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 14.8   n/a MPO502629   78340 (2002 PS89)          Discovered 2002-Aug-11 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2002 PS89 = 1997 SY13  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 02:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin