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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1424822419289332 6.1696e-08  
a 3.02675564872551 5.048e-08 au
q 2.595496718124037 1.904e-07 au
i 1.797799060102728 5.9779e-06 deg
node 133.5581201168527 0.00026131 deg
peri 297.9146553284224 0.00026464 deg
M 217.8254783596142 3.8935e-05 deg
tp 2459760.097880387576
(2022-Jun-29.59788039)
0.00021756 TDB
period 1923.37722528936
5.27
4.8117e-05
1.317e-07
d
yr
n .1871707719456023 4.6824e-09 deg/d
Q 3.458014579326983 5.7672e-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 = 1.61072 au 
 Jupiter MOID = 1.81732 au 
 T_jup = 3.228 
[ 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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