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249943 (2001 TD177)
Classification: Main-belt Asteroid          SPK-ID: 2249943
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 .05329378940754704 5.9409e-08  
a 2.808311727355747 2.8429e-08 au
q 2.658646153567305 1.7197e-07 au
i 5.673702798712019 7.3308e-06 deg
node 222.3162949883935 5.7883e-05 deg
peri 101.6628602719575 9.0394e-05 deg
M 34.9077745883701 6.6303e-05 deg
tp 2458833.819014578763
(2019-Dec-16.31901458)
0.0003167 TDB
period 1718.962479253447
4.71
2.6102e-05
7.146e-08
d
yr
n .2094286549851568 3.1801e-09 deg/d
Q 2.957977301144189 2.9944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      257  
   data-arc span      6629 days (18.15 yr)  
   first obs. used      2001-09-23  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56343  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:46:34  

Additional Information
 Earth MOID = 1.65406 au 
 Jupiter MOID = 2.21006 au 
 T_jup = 3.313 
[ 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 16.1   n/a MPO450109  

249943 (2001 TD177)          Discovered 2001-Oct-14 by LINEAR at Socorro
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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