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442365 (2011 SJ250)
Classification: Main-belt Asteroid          SPK-ID: 2442365
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2527423461362523 1.2231e-07  
a 2.614764419409823 5.1768e-08 au
q 1.953902725454588 3.4636e-07 au
i 7.098136707664 8.9168e-06 deg
node 226.9649632373855 8.3371e-05 deg
peri 104.3850041044416 8.7523e-05 deg
M 44.23352634475957 1.6295e-05 deg
tp 2458810.743640730106
(2019-Nov-23.24364073)
6.8293e-05 TDB
period 1544.355491911959
4.23
4.5863e-05
1.256e-07
d
yr
n .2331069510131434 6.9227e-09 deg/d
Q 3.275626113365057 6.4852e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      3539 days (9.69 yr)  
   first obs. used      2006-04-26  
   last obs. used      2016-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55384  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:21  

Additional Information
 Earth MOID = .958404 au 
 Jupiter MOID = 2.17423 au 
 T_jup = 3.351 
[ 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 17.4   n/a MPO456095  

442365 (2011 SJ250)          Discovered 2006-Apr-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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