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131695 (2001 XS254)
Classification: TransNeptunian Object          SPK-ID: 2131695
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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2452945.5 (2003-Nov-02.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05800214969988575 0.00021875  
q 35.29498186436869 0.0028015 au
tp 2451469.030912815843
(1999-Oct-17.53091282)
61.315 TDB
node 94.71841180092018 0.0042377 deg
peri 7.400913355714801 0.29679 deg
i 4.257625847411791 0.0011629 deg
  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
 Jupiter MOID = 30.0667 au 
 T_jup = 5.456 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.785108093146929E-8 4.016131347376085E-7 -.001656734260539107 -1.032396675162789E-8 -8.022846708798822E-6 -3.785070978646019E-9
q 4.016131347376085E-7 7.848562265200502E-6 .1117458203249797 -1.988513046598564E-8 .0005408839646208263 -1.518357825920299E-8
tp -.001656734260539107 .1117458203249797 3759.477478334379 .002429251952635186 18.19588289819219 .0006608956504140526
node -1.032396675162789E-8 -1.988513046598564E-8 .002429251952635186 1.795775402485048E-5 -6.147578405404056E-6 4.826543964910405E-6
peri -8.022846708798822E-6 .0005408839646208263 18.19588289819219 -6.147578405404056E-6 .08808601634682373 -1.613527434012214E-6
i -3.785070978646019E-9 -1.518357825920299E-8 .0006608956504140526 4.826543964910405E-6 -1.613527434012214E-6 1.352397554645315E-6

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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