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213912 (2003 UN103)
Classification: Main-belt Asteroid          SPK-ID: 2213912
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666683795063074 4.7866e-08  
a 2.364704097844109 1.2714e-08 au
q 1.970582697844506 1.1115e-07 au
i 4.445451938524951 4.2103e-06 deg
node 112.6099279839069 5.9602e-05 deg
peri 273.6847139301528 6.1288e-05 deg
M 317.0198488954706 1.6699e-05 deg
tp 2459555.072937009896
(2021-Dec-06.57293701)
6.2522e-05 TDB
period 1328.200479908189
3.64
1.0712e-05
2.933e-08
d
yr
n .2710434196085253 2.1859e-09 deg/d
Q 2.758825497843711 1.4833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      8448 days (23.13 yr)  
   first obs. used      1998-04-23  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51735  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:34:36  

Additional Information
 Earth MOID = .980116 au 
 Jupiter MOID = 2.6977 au 
 T_jup = 3.526 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.95   n/a E2021B55  

213912 (2003 UN103)          Discovered 2003-Oct-20 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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