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JPL Small-Body Database Browser
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378810 (2008 SG209)
Classification: Mars-crossing Asteroid          SPK-ID: 2378810
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2514392628785145 1.6062e-07  
a 2.131517807415134 3.6758e-08 au
q 1.595570541106245 3.6855e-07 au
i 3.712003341594115 6.8557e-06 deg
node 167.8392653931771 0.00011345 deg
peri 130.5301226341381 0.00012937 deg
M 312.6616372655295 2.7038e-05 deg
tp 2459149.966067111203
(2020-Oct-27.46606711)
8.4408e-05 TDB
period 1136.663396278631
3.11
2.9403e-05
8.05e-08
d
yr
n .3167164537704115 8.1927e-09 deg/d
Q 2.667465073724023 4.6e-08 au
  Orbit Determination Parameters
   # obs. used (total)      95  
   data-arc span      5990 days (16.40 yr)  
   first obs. used      2001-02-20  
   last obs. used      2017-07-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41902  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:13:44  

Additional Information
 Earth MOID = .583217 au 
 Jupiter MOID = 2.56464 au 
 T_jup = 3.677 
[ 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 18.7   n/a MPO418924  

378810 (2008 SG209)          Discovered 2008-Sep-28 by Charleston at Charleston
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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