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442363 (2011 SN245)
Classification: Main-belt Asteroid          SPK-ID: 2442363
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2045869754593189 2.2468e-07  
a 2.621188899908694 8.9105e-08 au
q 2.084927790768835 6.491e-07 au
i 7.621193007305658 1.2685e-05 deg
node 191.8439896371447 7.9197e-05 deg
peri 171.949017420684 8.6511e-05 deg
M 18.95273019447384 4.5443e-05 deg
tp 2458918.895297377686
(2020-Mar-10.39529738)
0.00019241 TDB
period 1550.050712619702
4.24
7.9039e-05
2.164e-07
d
yr
n .232250465787389 1.1843e-08 deg/d
Q 3.157450009048554 1.0733e-07 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      3367 days (9.22 yr)  
   first obs. used      2007-10-20  
   last obs. used      2017-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54221  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:23  

Additional Information
 Earth MOID = 1.08329 au 
 Jupiter MOID = 2.30837 au 
 T_jup = 3.362 
[ 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 17.6   n/a MPO408997  

442363 (2011 SN245)          Discovered 2007-Oct-20 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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