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461596 (2004 SA21)
Classification: Inner Main-belt Asteroid          SPK-ID: 2461596
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08866989832430701 1.6738e-07  
a 1.914525304999879 1.7375e-08 au
q 1.744764540866227 3.1615e-07 au
i 22.62939360224958 1.5438e-05 deg
node 17.69199322932428 1.4945e-05 deg
peri 1.550975605634535 5.0372e-05 deg
M 316.7633231862727 5.1576e-05 deg
tp 2459116.709036137771
(2020-Sep-24.20903614)
0.00013965 TDB
period 967.5871526813335
2.65
1.3172e-05
3.606e-08
d
yr
n .3720595080271419 5.0648e-09 deg/d
Q 2.084286069133531 1.8915e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      5362 days (14.68 yr)  
   first obs. used      2004-09-21  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57886  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:01:08  

Additional Information
 Earth MOID = .746921 au 
 Jupiter MOID = 3.20914 au 
 T_jup = 3.833 
[ 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 17.8   n/a MPO245835  

461596 (2004 SA21)          Discovered 2004-Sep-21 by LINEAR at Socorro
Reference: Last Updated: 2016-03-24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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