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JPL Small-Body Database Browser
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268234 (2005 EA220)
Classification: Main-belt Asteroid          SPK-ID: 2268234
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2617383400092308 8.441e-08  
a 3.192568464711132 7.9159e-08 au
q 2.356950894391822 3.1418e-07 au
i 24.27065507190941 2.008e-05 deg
node 330.8271193386027 1.575e-05 deg
peri 266.1446875170587 7.0294e-05 deg
M 137.1053101413485 7.8246e-05 deg
tp 2457806.975151478911
(2017-Feb-22.47515148)
0.0004273 TDB
period 2083.573168486926
5.70
7.7492e-05
2.122e-07
d
yr
n .1727801094028434 6.4261e-09 deg/d
Q 4.028186035030442 9.9878e-08 au
  Orbit Determination Parameters
   # obs. used (total)      200  
   data-arc span      7197 days (19.70 yr)  
   first obs. used      1999-02-23  
   last obs. used      2018-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59391  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:09:49  

Additional Information
 Earth MOID = 1.49298 au 
 Jupiter MOID = 1.75841 au 
 T_jup = 3.008 
[ 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 15.1   n/a MPO382363  
diameter diameter 4.700 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268234 (2005 EA220)          Discovered 2005-Mar-10 by Siding Spring Survey at Siding Spring
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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