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201658 (2003 TN20)
Classification: Main-belt Asteroid          SPK-ID: 2201658
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1892027868091698 4.8396e-08  
a 2.631398080269771 1.8477e-08 au
q 2.133530230278431 1.2742e-07 au
i 12.21947359814445 4.2592e-06 deg
node 293.6876601716492 2.735e-05 deg
peri 218.5954418177353 3.0719e-05 deg
M 204.8832300845892 1.7313e-05 deg
tp 2459672.291506888662
(2022-Apr-02.79150689)
7.9234e-05 TDB
period 1559.115385214652
4.27
1.6421e-05
4.496e-08
d
yr
n .2309001651923516 2.4319e-09 deg/d
Q 3.129265930261112 2.1972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      7145 days (19.56 yr)  
   first obs. used      2001-04-01  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:04:24  

Additional Information
 Earth MOID = 1.15945 au 
 Jupiter MOID = 1.97096 au 
 T_jup = 3.342 
[ 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 15.3   n/a MPO297240  
diameter diameter 6.576 km 1.602 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.031   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

201658 (2003 TN20)          Discovered 2003-Oct-14 by NEAT at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Alternate Designations
 2003 TN20 = 2004 XR74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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