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249938 (2001 TN128)
Classification: Main-belt Asteroid          SPK-ID: 2249938
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2393426532460217 5.8157e-08  
a 2.765512513444018 1.7367e-08 au
q 2.103607410891252 1.6216e-07 au
i 9.285714314376474 6.6984e-06 deg
node 241.4529837911845 3.1322e-05 deg
peri 169.7470337946776 3.393e-05 deg
M 352.956849920382 1.1043e-05 deg
tp 2459033.364445617518
(2020-Jul-02.86444562)
5.1648e-05 TDB
period 1679.816600322689
4.60
1.5824e-05
4.332e-08
d
yr
n .2143091096556879 2.0188e-09 deg/d
Q 3.427417615996784 2.1524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      6598 days (18.06 yr)  
   first obs. used      2001-07-26  
   last obs. used      2019-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52814  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:19:19  

Additional Information
 Earth MOID = 1.11539 au 
 Jupiter MOID = 1.95736 au 
 T_jup = 3.279 
[ 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 16.0   n/a MPO454854  

249938 (2001 TN128)          Discovered 2001-Oct-13 by NEAT at Palomar
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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