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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .212247229156879 5.1676e-05  
a 41.93320250354095 0.0033614 au
q 33.03299646249008 0.00049014 au
i 2.618308344959017 0.00013272 deg
node 304.9783913280839 0.00024405 deg
peri 181.2616254014532 0.0047708 deg
M 7.087487424645041 0.0027003 deg
tp 2457047.846093789268
(2015-Jan-25.34609379)
0.83248 TDB
period 99182.59661265915
271.55
11.926
0.03265
d
yr
n .00362966903766312 4.3644e-07 deg/d
Q 50.83340854459181 0.0040749 au
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      4844 days (13.26 yr)  
   first obs. used      2001-12-10  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .47714  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 07:42:47  

Additional Information
 Earth MOID = 32.0484 au 
 Jupiter MOID = 27.7249 au 
 T_jup = 5.667 
[ 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 7.4   n/a MPO382875  

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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