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392694 (2011 WR54)
Classification: Main-belt Asteroid          SPK-ID: 2392694
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02508194236680148 7.9023e-08  
a 3.131952875182971 6.222e-08 au
q 3.053397413672093 2.4002e-07 au
i 13.91701839947598 8.0182e-06 deg
node 55.38646667521942 3.2086e-05 deg
peri 164.9570688707533 0.00016879 deg
M 18.57328464868689 0.00016148 deg
tp 2458896.050234564975
(2020-Feb-16.55023457)
0.00090939 TDB
period 2024.516194515296
5.54
6.033e-05
1.652e-07
d
yr
n .1778202619348225 5.299e-09 deg/d
Q 3.210508336693848 6.3781e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      7084 days (19.39 yr)  
   first obs. used      2000-11-28  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61318  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:24:23  

Additional Information
 Earth MOID = 2.04452 au 
 Jupiter MOID = 1.77857 au 
 T_jup = 3.167 
[ 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 15.4   n/a MPO434456  
diameter diameter 5.999 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

392694 (2011 WR54)          Discovered 2010-May-20 by WISE at WISE
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2011 WR54 = 2010 KL43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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