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JPL Small-Body Database Browser
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442519 (2011 WN87)
Classification: Main-belt Asteroid          SPK-ID: 2442519
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1453196211672682 6.2262e-08  
a 3.019668447399543 4.9472e-08 au
q 2.580851372572688 1.9216e-07 au
i 1.794823394872643 5.9676e-06 deg
node 133.6919332596768 0.00026261 deg
peri 297.4116794828036 0.00026569 deg
M 143.3294806406525 3.6648e-05 deg
tp 2457837.419518858034
(2017-Mar-24.91951886)
0.00018783 TDB
period 1916.625749170489
5.25
4.7101e-05
1.29e-07
d
yr
n .1878300968020529 4.6159e-09 deg/d
Q 3.458485522226398 5.6662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      4101 days (11.23 yr)  
   first obs. used      2006-12-14  
   last obs. used      2018-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57866  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:27:03  

Additional Information
 Earth MOID = 1.59581 au 
 Jupiter MOID = 1.82024 au 
 T_jup = 3.230 
[ 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 17.4   n/a MPO437721  

442519 (2011 WN87)          Discovered 2006-Dec-14 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

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