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160509 (1990 EG5)
Classification: Main-belt Asteroid          SPK-ID: 2160509
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739709416755323 5.2893e-08  
a 3.093698828625589 3.5592e-08 au
q 2.555485130149104 1.5837e-07 au
i 12.22799509572497 4.5244e-06 deg
node 297.7886166143193 2.7974e-05 deg
peri 290.7805166099118 3.0766e-05 deg
M 228.4785294603853 1.5027e-05 deg
tp 2459926.622060700674
(2022-Dec-13.12206070)		 8.7366e-05 TDB
period 1987.538162246345
5.44		 3.4299e-05
9.391e-08		 d
yr
n .1811285975979061 3.1257e-09 deg/d
Q 3.631912527102074 4.1784e-08 au
   Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      11301 days (30.94 yr)  
   first obs. used      1990-03-04  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53385  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:39  

Additional Information
 Earth MOID = 1.57499 au 
 Jupiter MOID = 1.6384 au 
 T_jup = 3.166 
[ 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 14.4   n/a MPO417854  

160509 (1990 EG5)          Discovered 1990-Mar-04 by McNaught, R. H. at Siding Spring
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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Alternate Designations
 1990 EG5 = 2006 KC39 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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