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85469 (1997 LJ2)
Classification: Main-belt Asteroid          SPK-ID: 2085469
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2092188170663078 3.3717e-08  
a 2.632728643663619 1.0109e-08 au
q 2.081912271179732 8.7923e-08 au
i 5.663106021941708 3.2377e-06 deg
node 103.1607692334287 4.6938e-05 deg
peri 230.5843962114205 4.8175e-05 deg
M 71.33721075703582 1.0139e-05 deg
tp 2458691.313019107609
(2019-Jul-26.81301911)
4.3834e-05 TDB
period 1560.298082025623
4.27
8.9869e-06
2.46e-08
d
yr
n .2307251442190058 1.3289e-09 deg/d
Q 3.183545016147506 1.2224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      8263 days (22.62 yr)  
   first obs. used      1997-06-05  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52181  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:32:52  

Additional Information
 Earth MOID = 1.07702 au 
 Jupiter MOID = 2.19774 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457267.5 (2015-Sep-02.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2112356806642588 3.3919e-08  
q 2.075758025230177 8.8725e-08 au
tp 2457132.019543495897
(2015-Apr-19.51954350)
4.3792e-05 TDB
node 103.2434238484529 4.7007e-05 deg
peri 230.6223637458514 4.8207e-05 deg
i 5.660975398440664 3.2356e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      8263 days (22.62 yr)  
   first obs. used      1997-06-05  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52181  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:32:52  

Additional Information
 Jupiter MOID = 2.19774 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.15053161516785E-15 -2.997494282251774E-15 6.593782012650729E-13 3.029824621635561E-14 1.524406241540672E-13 -2.651164759794909E-15
q -2.997494282251774E-15 7.872186264132476E-15 -1.802314367357921E-12 -7.839772031153784E-14 -4.182577721158566E-13 7.038380090523327E-15
tp 6.593782012650729E-13 -1.802314367357921E-12 1.917698290982514E-9 2.571263736710705E-11 4.974462756342516E-10 -2.299397522021958E-12
node 3.029824621635561E-14 -7.839772031153784E-14 2.571263736710705E-11 2.209615727297902E-9 -2.191740426189692E-9 -3.052880022062297E-11
peri 1.524406241540672E-13 -4.182577721158566E-13 4.974462756342516E-10 -2.191740426189692E-9 2.323949343972935E-9 2.974253733795101E-11
i -2.651164759794909E-15 7.038380090523327E-15 -2.299397522021958E-12 -3.052880022062297E-11 2.974253733795101E-11 1.046883804056321E-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 15.7   n/a MPO417413  

85469 (1997 LJ2)          Discovered 1997-Jun-05 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Alternate Designations
 1997 LJ2 = 2002 SU30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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