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131697 (2001 XH255)
Classification: TransNeptunian Object          SPK-ID: 2131697
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07832799024218326 0.00025714  
a 35.14535260574868 0.021458 AU
q 32.39248776978751 0.012285 AU
i 2.849158990685225 0.00052767 deg
node 323.1752520953037 0.0058777 deg
peri 216.4857243179537 0.28168 deg
M 316.8295997079334 0.26985 deg
tp 2465926.571331657598
(2039-May-18.07133166)
48.795 JED
period 76102.73838485783
208.36
69.696
0.1908
d
yr
n .004730447387838402 4.3322e-06 deg/d
Q 37.89821744170985 0.023139 AU
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      4110 days (11.25 yr)  
   first obs. used      2001-12-11  
   last obs. used      2013-03-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      3  
   fit RMS      .11107  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Oct-24 15:31:01  

Additional Information
 Earth MOID = 31.3971 AU 
 T_jup = 5.324 
[ 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 8.2 mag n/a MPO273203  

131697 (2001 XH255)          Discovered 2001-Dec-11 by Kleyna, J., Sheppard, S. S., Jewitt, D. C. at Mauna Kea (568)
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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