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

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .175456529420989 1.1222e-07  
a 3.090164853626496 8.3189e-08 AU
q 2.547975253070473 3.6989e-07 AU
i 12.23690776226931 9.0506e-06 deg
node 297.8866553864022 5.9187e-05 deg
peri 291.1183339756349 7.6695e-05 deg
M 189.2164907805965 6.2844e-05 deg
tp 2457941.770249511661
(2017-Jul-07.27024951)
0.00037415 JED
period 1984.13354645894
5.43
8.0121e-05
2.194e-07
d
yr
n .1814393999045517 7.3267e-09 deg/d
Q 3.632354454182519 9.7785e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      9076 days (24.85 yr)  
   first obs. used      1990-03-04  
   last obs. used      2015-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61297  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 18:22:00  

Additional Information
 Earth MOID = 1.57008 AU 
 T_jup = 3.167 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO270737  

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

[ show close-approach data ]
Alternate Designations
 1990 EG5 = 2006 KC39 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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