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249940 (2001 TL166)
Classification: Main-belt Asteroid          SPK-ID: 2249940
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .16870489288138 4.5064e-08  
a 2.759316648339781 2.0106e-08 au
q 2.29380642875581 1.3041e-07 au
i 7.542909735108057 4.9704e-06 deg
node 287.3486558810691 4.7362e-05 deg
peri 161.1885866897974 5.1415e-05 deg
M 344.8148860803889 2.0542e-05 deg
tp 2459071.118142895855
(2020-Aug-09.61814290)
9.5883e-05 TDB
period 1674.174561817119
4.58
1.8298e-05
5.01e-08
d
yr
n .2150313403455746 2.3502e-09 deg/d
Q 3.224826867923752 2.3498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      7061 days (19.33 yr)  
   first obs. used      2000-07-02  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51615  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:49:34  

Additional Information
 Earth MOID = 1.31179 au 
 Jupiter MOID = 1.98166 au 
 T_jup = 3.309 
[ 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 15.9   n/a MPO503177  
diameter diameter 4.161 km 0.229 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249940 (2001 TL166)          Discovered 2001-Oct-15 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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