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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2119349637564756 2.4051e-05  
a 41.90448520283066 0.0015385 au
q 33.02345965013497 0.00020553 au
i 2.617387849718684 5.6456e-05 deg
node 304.9740669075908 0.00014816 deg
peri 180.7981421918091 0.0016893 deg
M 8.830882369430796 0.001174 deg
tp 2456966.027058033987
(2014-Nov-04.52705803)
0.29491 TDB
period 99080.7285732379
271.27
5.4567
0.01494
d
yr
n .003633400815516788 2.001e-07 deg/d
Q 50.78551075552634 0.0018646 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      7040 days (19.27 yr)  
   first obs. used      2001-12-10  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .67668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 08:23:52  

Additional Information
 Earth MOID = 32.0394 au 
 Jupiter MOID = 27.7175 au 
 T_jup = 5.665 
[ 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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