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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1755138296639751 1.112e-07  
a 3.090811113361718 8.169e-08 au
q 2.548331018087628 3.6864e-07 au
i 12.23598912753674 8.9951e-06 deg
node 297.8875869158388 5.7446e-05 deg
peri 290.9994103187612 7.521e-05 deg
M 261.9394043198489 6.4648e-05 deg
tp 2457941.128766982349
(2017-Jul-06.62876698)
0.00037239 JED
period 1984.756004832639
5.43
7.8685e-05
2.154e-07
d
yr
n .1813824969535015 7.1909e-09 deg/d
Q 3.633291208635808 9.6027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      9420 days (25.79 yr)  
   first obs. used      1990-03-04  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63497  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 18:15:15  

Additional Information
 Earth MOID = 1.56824 au 
 Jupiter MOID = 1.63318 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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