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131695 (2001 XS254)
Classification: TransNeptunian Object          SPK-ID: 2131695
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04787519241338245 0.00022058  
a 37.03827497282102 0.010605 au
q 35.26506043183745 0.0033936 au
i 4.267575674892526 0.0011685 deg
node 94.79485210758691 0.0042473 deg
peri 2.834524218005719 0.35483 deg
M 37.10564049027388 0.32377 deg
tp 2450514.324951601608
(1997-Mar-06.82495160)
73.473 TDB
period 82333.11639571893
225.42
35.36
0.09681
d
yr
n .004372481156546127 1.8779e-06 deg/d
Q 38.8114895138046 0.011112 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      2161 days (5.92 yr)  
   first obs. used      2001-12-09  
   last obs. used      2007-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .18179  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 10:24:43  

Additional Information
 Earth MOID = 34.2819 au 
 Jupiter MOID = 30.0667 au 
 T_jup = 5.456 
[ 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 7.7   n/a MPO137902  

131695 (2001 XS254)          Discovered 2001-Dec-09 by Sheppard, S. S., Kleyna, J., Jewitt, D. C. at Mauna Kea
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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