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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1754564385438607 1.3333e-07  
a 3.090164836022431 8.4421e-08 AU
q 2.547975519380461 4.2565e-07 AU
i 12.23690973789142 1.6906e-05 deg
node 297.8866702636331 9.0597e-05 deg
peri 291.1183860736112 0.00011582 deg
M 189.2164300481424 7.9182e-05 deg
tp 2457941.770576194141
(2017-Jul-07.27057619)
0.00045502 JED
period 1984.133529504108
5.43
8.1307e-05
2.226e-07
d
yr
n .1814394014549889 7.4351e-09 deg/d
Q 3.6323541526644 9.9233e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      8648 days (23.68 yr)  
   first obs. used      1990-03-04  
   last obs. used      2013-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64908  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 10:36:39  

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 (413)
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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