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JPL Small-Body Database Browser
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487557 (2014 WJ20)
Classification: Outer Main-belt Asteroid          SPK-ID: 2487557
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .139514185532273 4.83e-08  
a 3.207402201708932 4.8807e-08 au
q 2.759924095863091 1.4947e-07 au
i 5.600648428946929 5.7946e-06 deg
node 248.2594816816267 9.5262e-05 deg
peri 12.96202897709748 0.00010216 deg
M 60.29664345038557 3.864e-05 deg
tp 2458249.085888315968
(2018-May-10.58588832)
0.00022296 TDB
period 2098.111486261221
5.74
4.789e-05
1.311e-07
d
yr
n .1715828745790389 3.9164e-09 deg/d
Q 3.654880307554773 5.5616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      5784 days (15.84 yr)  
   first obs. used      2003-12-25  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57045  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:47:03  

Additional Information
 Earth MOID = 1.74454 au 
 Jupiter MOID = 1.41468 au 
 T_jup = 3.170 
[ 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 15.8   n/a MPO409260  

487557 (2014 WJ20)          Discovered 2006-May-31 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14

[ show close-approach data ]
Alternate Designations
 2014 WJ20 = 2006 KC110 = 2012 LP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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