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305513 (2008 EC163)
Classification: Main-belt Asteroid          SPK-ID: 2305513
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201444156230713 5.2641e-08  
a 3.179505247414638 5.5117e-08 au
q 2.797505447493517 1.7718e-07 au
i 5.694930842429891 7.7423e-06 deg
node 305.3673034899765 6.202e-05 deg
peri 278.6804743549566 7.0288e-05 deg
M 18.70218428338072 3.3232e-05 deg
tp 2458892.920981603505
(2020-Feb-13.42098160)
0.00019062 TDB
period 2070.798043475232
5.67
5.3846e-05
1.474e-07
d
yr
n .1738460209262342 4.5204e-09 deg/d
Q 3.561505047335758 6.1739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      4512 days (12.35 yr)  
   first obs. used      2006-12-21  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5857  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:15:08  

Additional Information
 Earth MOID = 1.79599 au 
 Jupiter MOID = 1.50339 au 
 T_jup = 3.181 
[ 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 16.0   n/a MPO433969  
diameter diameter 4.695 km 0.586 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.027   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305513 (2008 EC163)          Discovered 2008-Mar-08 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 EC163 = 2006 YC23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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