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226891 (2004 TG139)
Classification: Main-belt Asteroid          SPK-ID: 2226891
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08673018785915189 4.4989e-08  
a 2.76663945518381 1.8285e-08 au
q 2.526688295497177 1.24e-07 au
i 3.630876413464661 4.9548e-06 deg
node 271.1481386516566 0.00010178 deg
peri 191.3064192235884 0.00010943 deg
M 64.68665425069054 3.9732e-05 deg
tp 2458698.477384451048
(2019-Aug-02.97738445)
0.00018479 TDB
period 1680.843488615926
4.60
1.6663e-05
4.562e-08
d
yr
n .2141781804422722 2.1233e-09 deg/d
Q 3.006590614870444 1.9871e-08 au
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      8927 days (24.44 yr)  
   first obs. used      1995-11-17  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56331  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:31:20  

Additional Information
 Earth MOID = 1.54369 au 
 Jupiter MOID = 2.11044 au 
 T_jup = 3.331 
[ 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 MPO379753  
diameter diameter 3.335 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226891 (2004 TG139)          Discovered 2004-Oct-09 by LONEOS at Anderson Mesa
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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