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201621 (2003 SJ252)
Classification: Main-belt Asteroid          SPK-ID: 2201621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1540135884961829 8.0596e-08  
a 3.156315123105057 3.8466e-08 au
q 2.670199704570877 2.6337e-07 au
i 19.15537649235139 6.946e-06 deg
node 62.90959505808549 1.611e-05 deg
peri 327.3863296921065 2.5002e-05 deg
M 4.778446688066808 1.8224e-05 deg
tp 2458973.313505915742
(2020-May-03.81350592)
0.00010347 TDB
period 2048.183962117671
5.61
3.7442e-05
1.025e-07
d
yr
n .1757654618229637 3.2131e-09 deg/d
Q 3.642430541639238 4.4391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      7959 days (21.79 yr)  
   first obs. used      1999-01-14  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:04:38  

Additional Information
 Earth MOID = 1.6966 au 
 Jupiter MOID = 1.8102 au 
 T_jup = 3.102 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO454428  

201621 (2003 SJ252)          Discovered 2003-Sep-26 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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