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

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2868816034024211 1.8163e-05  
a 51.45730755552436 0.0026827 au
q 36.69515265722401 0.0018291 au
i .7531512738113346 7.4667e-06 deg
node 301.3574671751959 0.011553 deg
peri 343.1752743821954 0.013675 deg
M 80.12853443729198 0.0089419 deg
tp 2428591.348685097455
(1937-Feb-26.84868510)
1.0857 TDB
period 134824.5609286602
369.13
10.543
0.02887
d
yr
n .002670136639202461 2.0881e-07 deg/d
Q 66.2194624538247 0.0034523 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 = 35.6781 au 
 Jupiter MOID = 31.4968 au 
 T_jup = 6.126 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456554.5 (2013-Sep-19.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2812426063404908 1.836e-05  
q 37.11935663299283 0.0018352 au
tp 2428563.483728376748
(1937-Jan-29.98372838)
1.1375 TDB
node 302.3624402729496 0.011529 deg
peri 343.1265164067989 0.013746 deg
i .7523700873494444 7.1102e-06 deg
  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
 Jupiter MOID = 31.4968 au 
 T_jup = 6.126 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.370847448607712E-10 -4.872926896513276E-9 1.481515918659596E-5 3.226179022848752E-10 3.474480877161468E-8 6.521528087285021E-13
q -4.872926896513276E-9 3.36807001602885E-6 .001231015758617812 -2.542101215505572E-8 1.264533959078877E-5 2.321818510342986E-10
tp 1.481515918659596E-5 .001231015758617812 1.294012251715212 5.245271979165781E-6 .007313041983621631 1.331772702956676E-7
node 3.226179022848752E-10 -2.542101215505572E-8 5.245271979165781E-6 .0001329186031278402 -.0001329557956747154 4.173584450103934E-9
peri 3.474480877161468E-8 1.264533959078877E-5 .007313041983621631 -.0001329557956747154 .0001889567142254128 -3.147089749887367E-9
i 6.521528087285021E-13 2.321818510342986E-10 1.331772702956676E-7 4.173584450103934E-9 -3.147089749887367E-9 5.055458295182863E-11

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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