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120458 (1990 SN5)
Classification: Main-belt Asteroid          SPK-ID: 2120458
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2635077190084013 3.429e-08  
a 2.336302962671942 1.1554e-08 au
q 1.720669098065688 7.9421e-08 au
i 2.340456704323047 4.1034e-06 deg
node 65.15830392829605 0.00010803 deg
peri 246.2579413677682 0.00010843 deg
M 142.7211697680919 1.022e-05 deg
tp 2458483.395803482089
(2018-Dec-30.89580348)
3.5536e-05 TDB
period 1304.344065067123
3.57
9.6755e-06
2.649e-08
d
yr
n .2760007958340916 2.0474e-09 deg/d
Q 2.951936827278195 1.4598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      10704 days (29.31 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58197  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 17:03:25  

Additional Information
 Earth MOID = .708073 au 
 Jupiter MOID = 2.33774 au 
 T_jup = 3.519 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO296895  

120458 (1990 SN5)          Discovered 1990-Sep-22 by Elst, E. W. at La Silla
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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