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JPL Small-Body Database Browser
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418846 (2008 WJ60)
Classification: Amor [NEO]          SPK-ID: 2418846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2914297996007869 7.6568e-08  
a 1.598696369254136 9.7533e-09 au
q 1.132788606739898 1.2565e-07 au
i 16.69374610910572 1.5487e-05 deg
node 259.4401275653419 1.1493e-05 deg
peri 170.0123608585012 7.7848e-05 deg
M 257.3737375954609 4.3004e-05 deg
tp 2459210.976407049278
(2020-Dec-27.47640705)
8.8122e-05 TDB
period 738.3247208113163
2.02
6.7565e-06
1.85e-08
d
yr
n .4875903377641345 4.462e-09 deg/d
Q 2.064604131768375 1.2596e-08 au
  Orbit Determination Parameters
   # obs. used (total)      99  
   data-arc span      3693 days (10.11 yr)  
   first obs. used      2008-11-23  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55285  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-26 10:17:41  

Additional Information
 Earth MOID = .150901 au 
 Jupiter MOID = 3.23362 au 
 T_jup = 4.271 
[ 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 21.3   n/a MPO316214  

418846 (2008 WJ60)          Discovered 2008-Nov-23 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-01-07

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