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524366 (2001 XR254)
Classification: TransNeptunian Object          SPK-ID: 2524366
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03740294751806894 2.5338e-05  
a 42.71635688473532 0.0018537 au
q 41.11863923001246 0.0028017 au
i 1.231631735497996 5.7632e-05 deg
node 179.9831760037577 0.0052633 deg
peri 82.14327045905225 0.046802 deg
M 224.0050078619573 0.048114 deg
tp 2497522.617516939863
(2125-Nov-19.11751694)		 11.629 TDB
period 101974.066015766
279.19		 6.6378
0.01817		 d
yr
n .003530309362621091 2.298e-07 deg/d
Q 44.31407453945818 0.001923 au
   Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      5881 days (16.10 yr)  
   first obs. used      2001-12-10  
   last obs. used      2018-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .57103  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:48:36  

Additional Information
 Earth MOID = 40.1033 au 
 Jupiter MOID = 35.8077 au 
 T_jup = 5.847 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457077.5 (2015-Feb-24.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02991479345845098 2.1445e-05  
q 41.90844109513085 0.0026014 au
tp 2493937.717471493292
(2116-Jan-26.21747149)		 16.815 TDB
node 179.8636443008361 0.0052237 deg
peri 67.55035445679293 0.064495 deg
i 1.232844557442384 5.7508e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      5881 days (16.10 yr)  
   first obs. used      2001-12-10  
   last obs. used      2018-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .57103  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:48:36  

Additional Information
 Jupiter MOID = 35.8077 au 
 T_jup = 5.847 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.599008132668903E-10 -4.885667988361676E-8 .0001231237049075302 -2.427669453530697E-10 5.791589640734716E-7 -1.289167945135042E-12
q -4.885667988361676E-8 6.767324646406977E-6 -.03290027372505976 8.838534643065964E-9 -.0001347030475999692 4.981616441961058E-10
tp .0001231237049075302 -.03290027372505976 282.7430833476228 .0001493834104127765 1.076999814355609 -4.879033008446683E-6
node -2.427669453530697E-10 8.838534643065964E-9 .0001493834104127765 2.728670306113434E-5 -2.67947869189674E-5 -2.977125499519064E-7
peri 5.791589640734716E-7 -.0001347030475999692 1.076999814355609 -2.67947869189674E-5 .004159643409873677 2.792758445623681E-7
i -1.289167945135042E-12 4.981616441961058E-10 -4.879033008446683E-6 -2.977125499519064E-7 2.792758445623681E-7 3.307127741602912E-9

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.9   n/a E2018X68  

524366 (2001 XR254)          Discovered 2001-Dec-10 by Jewitt, D. C., Sheppard, S. S., Kleyna, J. at Mauna Kea
Reference: Last Updated: 2019-05-29
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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