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JPL Small-Body Database Browser
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469131 (2015 EU23)
Classification: Main-belt Asteroid          SPK-ID: 2469131
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07678582025238564 4.7365e-08  
a 2.91030127055974 3.2003e-08 au
q 2.68683140031825 1.4897e-07 au
i 12.80833445929631 5.2814e-06 deg
node 144.4500405392467 2.3648e-05 deg
peri 252.9124314865595 4.3063e-05 deg
M 50.50322130613309 3.4974e-05 deg
tp 2458346.097175011839
(2018-Aug-15.59717501)
0.0001769 TDB
period 1813.449016263362
4.96
2.9913e-05
8.19e-08
d
yr
n .1985167472432091 3.2745e-09 deg/d
Q 3.133771140801229 3.4461e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      8720 days (23.87 yr)  
   first obs. used      1995-02-21  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57489  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 16:25:10  

Additional Information
 Earth MOID = 1.72395 au 
 Jupiter MOID = 2.20365 au 
 T_jup = 3.242 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO434685  
diameter diameter 4.905 km 1.374 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

469131 (2015 EU23)          Discovered 2008-Nov-19 by CSS at Catalina
Reference: Last Updated: 2016-06-21

Alternate Designations
 2015 EU23 = 2008 WZ131 = 2010 JR91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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