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146492 (2001 SB20)
Classification: Main-belt Asteroid          SPK-ID: 2146492
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .154263949570578 4.1866e-08  
a 2.607780411089367 1.5928e-08 au
q 2.205493905261936 1.0953e-07 au
i 5.316207539565914 4.8625e-06 deg
node 90.52099940641887 5.0527e-05 deg
peri 246.3695915926446 5.368e-05 deg
M 182.7211016021394 2.077e-05 deg
tp 2459757.959642468939
(2022-Jun-27.45964247)		 9.2162e-05 TDB
period 1538.172189432495
4.21		 1.4092e-05
3.858e-08		 d
yr
n .2340440182661352 2.1442e-09 deg/d
Q 3.010066916916798 1.8385e-08 au
   Orbit Determination Parameters
   # obs. used (total)      373  
   data-arc span      8172 days (22.37 yr)  
   first obs. used      1997-11-06  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:27:19  

Additional Information
 Earth MOID = 1.2024 au 
 Jupiter MOID = 2.36573 au 
 T_jup = 3.388 
[ 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 16.2   n/a MPO469553  

146492 (2001 SB20)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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