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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06618503978527987 5.8524e-08  
a 3.077365539830226 2.6661e-08 au
q 2.873689979142713 1.8383e-07 au
i 2.483952170759434 5.8738e-06 deg
node 162.9604093587464 0.00012048 deg
peri 40.79499581105383 0.00012465 deg
M 355.9502182163504 3.1958e-05 deg
tp 2458622.681768989710
(2019-May-19.18176899)
0.00017505 TDB
period 1971.819041839632
5.40
2.5625e-05
7.016e-08
d
yr
n .1825725344776738 2.3726e-09 deg/d
Q 3.281041100517739 2.8426e-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 = 1.8708 au 
 Jupiter MOID = 1.67689 au 
 T_jup = 3.224 
[ 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 15.6   n/a MPO433111  

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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