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115486 (2003 UN20)
Classification: Main-belt Asteroid          SPK-ID: 2115486
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04802835047806286 4.3868e-08  
a 2.202191595198319 9.3193e-09 au
q 2.09642396544429 9.9159e-08 au
i 8.184946533189949 4.2411e-06 deg
node 36.84444137099719 2.7213e-05 deg
peri 159.3273759066322 4.6675e-05 deg
M 343.8025934116708 3.8479e-05 deg
tp 2459450.206155047823
(2021-Aug-23.70615505)
0.00012765 TDB
period 1193.661201982016
3.27
7.5771e-06
2.074e-08
d
yr
n .3015931148656231 1.9144e-09 deg/d
Q 2.307959224952349 9.7669e-09 au
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      10604 days (29.03 yr)  
   first obs. used      1992-04-23  
   last obs. used      2021-05-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:35:08  

Additional Information
 Earth MOID = 1.09521 au 
 Jupiter MOID = 2.64673 au 
 T_jup = 3.649 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457961.5 (2017-Jul-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04791510862176732 4.3862e-08  
q 2.096396192295116 9.9088e-08 au
tp 2458259.286252989335
(2018-May-20.78625299)
0.00012709 TDB
node 36.86786246655942 2.7195e-05 deg
peri 160.1461766731688 4.6822e-05 deg
i 8.188225707510409 4.2428e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      10604 days (29.03 yr)  
   first obs. used      1992-04-23  
   last obs. used      2021-05-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:35:08  

Additional Information
 Jupiter MOID = 2.64673 au 
 T_jup = 3.649 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.923908064761039E-15 -4.329935284225625E-15 -1.456610016585541E-12 7.313446868111594E-15 -4.070014342958006E-13 -1.559894833484604E-15
q -4.329935284225625E-15 9.818476058625447E-15 3.361211664683451E-12 -1.568791385746499E-14 9.336892019059972E-13 3.567924789362358E-15
tp -1.456610016585541E-12 3.361211664683451E-12 1.615110789818016E-8 -2.707108008160828E-11 4.854613932016704E-9 9.932979747374207E-12
node 7.313446868111594E-15 -1.568791385746499E-14 -2.707108008160828E-11 7.395745269543476E-10 -7.397776648472634E-10 -3.240123163297559E-11
peri -4.070014342958006E-13 9.336892019059972E-13 4.854613932016704E-9 -7.397776648472634E-10 2.192302335661447E-9 3.508830327619304E-11
i -1.559894833484604E-15 3.567924789362358E-15 9.932979747374207E-12 -3.240123163297559E-11 3.508830327619304E-11 1.800097419121128E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.74   n/a MPCxxxxx  

115486 (2003 UN20)          Discovered 2003-Oct-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2003 UN20 = 2000 WS106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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