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508770 (1995 WY2)
Classification: TransNeptunian Object          SPK-ID: 2508770
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260819463039271 0.00010503  
a 46.15984742695529 0.018443 au
q 40.33992402227244 0.018403 au
i 1.645635647945336 0.00032352 deg
node 78.72671669414723 0.0030505 deg
peri 112.2537307094853 0.13518 deg
M 289.6202010281895 0.12487 deg
tp 2481394.954863997551
(2081-Sep-22.45486400)
26.382 TDB
period 114549.9684400665
313.62
68.65
0.188
d
yr
n .003142733297114394 1.8835e-06 deg/d
Q 51.97977083163813 0.020768 au
  Orbit Determination Parameters
   # obs. used (total)      13  
   data-arc span      7767 days (21.26 yr)  
   first obs. used      1995-12-23  
   last obs. used      2017-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .29006  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 10:09:20  

Additional Information
 Earth MOID = 39.3407 au 
 Jupiter MOID = 34.8771 au 
 T_jup = 6.020 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.1   n/a MPO428378  

508770 (1995 WY2)          Discovered 1995-Nov-18 by Jewitt, D. C., Luu, J. X. at Mauna Kea
Reference: Last Updated: 2018-02-05
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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