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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457421.5 (2016-Feb-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1661025037858529 4.7718e-08  
q 1.972216606010567 1.1075e-07 au
tp 2456900.992737218178
(2014-Aug-31.49273722)
5.0236e-05 TDB
node 112.6497683495655 5.9573e-05 deg
peri 274.0192850982899 6.1281e-05 deg
i 4.44568733298795 4.2116e-06 deg
  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
 Jupiter MOID = 2.6977 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.276960542363732E-15 -5.262840811855078E-15 8.942585633523598E-13 -1.626086768331701E-14 1.959471589564926E-13 -3.097603421860423E-15
q -5.262840811855078E-15 1.226631688215425E-14 -1.876420622129702E-12 3.691784158167509E-14 -3.904719849205811E-13 7.202480298074337E-15
tp 8.942585633523598E-13 -1.876420622129702E-12 2.523616906650065E-9 -1.806065249701456E-11 7.40126953776535E-10 -2.324888599125761E-12
node -1.626086768331701E-14 3.691784158167509E-14 -1.806065249701456E-11 3.54894514352749E-9 -3.542722845205531E-9 -8.394530400129545E-11
peri 1.959471589564926E-13 -3.904719849205811E-13 7.40126953776535E-10 -3.542722845205531E-9 3.75534846602446E-9 8.316805041570472E-11
i -3.097603421860423E-15 7.202480298074337E-15 -2.324888599125761E-12 -8.394530400129545E-11 8.316805041570472E-11 1.773743796555473E-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 16.95   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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