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469420 (2001 XP254)
Classification: TransNeptunian Object          SPK-ID: 2469420
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21194090215911 2.4106e-05  
a 41.91136656279369 0.0015422 au
q 33.02863372275404 0.00020593 au
i 2.618138001087546 5.6579e-05 deg
node 304.9782067445319 0.00014806 deg
peri 181.0183722993205 0.0016923 deg
M 7.97481908540174 0.0011538 deg
tp 2457005.095762291304
(2014-Dec-13.59576229)
0.29551 TDB
period 99105.13544086447
271.34
5.47
0.01498
d
yr
n .003632506008881953 2.0049e-07 deg/d
Q 50.79409940283333 0.001869 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      7007 days (19.18 yr)  
   first obs. used      2001-12-10  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .68368  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 16:19:02  

Additional Information
 Earth MOID = 32.044 au 
 Jupiter MOID = 27.7214 au 
 T_jup = 5.666 
[ 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 7.77   n/a E2021B25  

469420 (2001 XP254)          Discovered 2001-Dec-10 by Jewitt, D. C., Sheppard, S. S., Kleyna, J. at Mauna Kea
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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