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441830 (2009 SJ244)
Classification: Main-belt Asteroid          SPK-ID: 2441830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09780630161568805 8.3504e-08  
a 2.234402597468187 2.5888e-08 au
q 2.015863943089336 2.0139e-07 au
i 3.938923233947114 6.678e-06 deg
node 102.8605735262892 0.00012841 deg
peri 27.18780696410494 0.00013633 deg
M 334.1686734964218 5.0847e-05 deg
tp 2459088.035612778164
(2020-Aug-26.53561278)
0.00017301 TDB
period 1219.945889955506
3.34
2.1202e-05
5.805e-08
d
yr
n .2950950554152282 5.1286e-09 deg/d
Q 2.452941251847037 2.842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      83  
   data-arc span      4736 days (12.97 yr)  
   first obs. used      2006-12-10  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 22:52:34  

Additional Information
 Earth MOID = 1.03167 au 
 Jupiter MOID = 2.57547 au 
 T_jup = 3.630 
[ 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 18.0   n/a MPO437717  

441830 (2009 SJ244)          Discovered 2006-Dec-10 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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