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183621 (2003 UJ242)
Classification: Main-belt Asteroid          SPK-ID: 2183621
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0852057210768722 4.1069e-08  
a 2.212169433152571 1.679e-08 au
q 2.02367994145659 9.0071e-08 au
i 5.54861706797083 5.2492e-06 deg
node 61.9161391127719 5.6466e-05 deg
peri 63.7300226213065 7.2512e-05 deg
M 299.8073128765674 4.9434e-05 deg
tp 2459201.440388844677
(2020-Dec-17.94038884)
0.00016655 TDB
period 1201.782865013894
3.29
1.3682e-05
3.746e-08
d
yr
n .2995549449740556 3.4103e-09 deg/d
Q 2.400658924848551 1.822e-08 au
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      6205 days (16.99 yr)  
   first obs. used      2003-10-24  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:33:18  

Additional Information
 Earth MOID = 1.04635 au 
 Jupiter MOID = 2.64044 au 
 T_jup = 3.645 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457610.5 (2016-Aug-10.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08440777744504466 4.1005e-08  
q 2.025782737023981 8.9867e-08 au
tp 2457999.022913173061
(2017-Sep-02.52291317)
0.00015951 TDB
node 61.92352121031448 5.646e-05 deg
peri 63.57806378653966 7.2839e-05 deg
i 5.548993905092655 5.2506e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      6205 days (16.99 yr)  
   first obs. used      2003-10-24  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:33:18  

Additional Information
 Jupiter MOID = 2.64044 au 
 T_jup = 3.645 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.681414079903733E-15 -3.631226570004813E-15 1.662240150190822E-12 5.659278958465674E-15 5.108367837016128E-13 2.309418059322015E-15
q -3.631226570004813E-15 8.076053345747859E-15 -2.142875396773146E-12 -1.386085836349878E-14 -7.037921988286215E-13 -3.795893726154874E-15
tp 1.662240150190822E-12 -2.142875396773146E-12 2.544366813076327E-8 -2.803131589191835E-11 7.366976885494952E-9 1.806198074597367E-11
node 5.659278958465674E-15 -1.386085836349878E-14 -2.803131589191835E-11 3.187749693701828E-9 -3.180405994143123E-9 -1.130320457954112E-10
peri 5.108367837016128E-13 -7.037921988286215E-13 7.366976885494952E-9 -3.180405994143123E-9 5.30556197210469E-9 1.177258584685531E-10
i 2.309418059322015E-15 -3.795893726154874E-15 1.806198074597367E-11 -1.130320457954112E-10 1.177258584685531E-10 2.756884258217203E-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 17.4   n/a MPO494017  

183621 (2003 UJ242)          Discovered 2003-Oct-24 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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