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173119 (1981 EU46)
Classification: Main-belt Asteroid          SPK-ID: 2173119
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06758198175960371 5.8572e-08  
a 3.082207863567043 2.664e-08 au
q 2.873906147952148 1.8438e-07 au
i 2.484252544556552 5.8711e-06 deg
node 162.871698743887 0.00012038 deg
peri 41.52482230249181 0.00012437 deg
M 68.22333226235543 3.1302e-05 deg
tp 2458625.939703358631
(2019-May-22.43970336)
0.00017174 TDB
period 1976.474943679883
5.41
2.5625e-05
7.016e-08
d
yr
n .182142455765079 2.3615e-09 deg/d
Q 3.290509579181938 2.8441e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      13949 days (38.19 yr)  
   first obs. used      1981-03-02  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55532  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:50  

Additional Information
 Earth MOID = 1.8706 au 
 Jupiter MOID = 1.66661 au 
 T_jup = 3.223 
[ 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 15.7   n/a MPO475466  

173119 (1981 EU46)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1981 EU46 = 2002 CE143 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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