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42301 (2001 UR163)
Classification: TransNeptunian Object          SPK-ID: 2042301
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2870495680638628 1.8293e-05  
a 51.6276018709685 0.0027035 au
q 36.80792105373392 0.0018225 au
i .7532756513331287 7.5297e-06 deg
node 301.2728625930956 0.011531 deg
peri 343.8898446133298 0.013658 deg
M 80.47164212761069 0.009015 deg
tp 2428713.119172158185
(1937-Jun-28.61917216)
1.0923 TDB
period 135494.4028696782
370.96
10.643
0.02914
d
yr
n .002656936318958184 2.087e-07 deg/d
Q 66.44728268820307 0.0034796 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      12515 days (34.26 yr)  
   first obs. used      1982-07-27  
   last obs. used      2016-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .42857  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-05 18:45:47  

Additional Information
 Earth MOID = 35.7915 au 
 Jupiter MOID = 31.6127 au 
 T_jup = 6.135 
[ 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 4.1   n/a MPO389974  

42301 (2001 UR163)          Discovered 2001-Oct-21 by Deep Ecliptic Survey at Kitt Peak
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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