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447242 (2005 UK204)
Classification: Main-belt Asteroid          SPK-ID: 2447242
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2088048481106397 8.3505e-08  
a 2.97987087789874 4.2965e-08 au
q 2.357659391849775 2.5193e-07 au
i 11.20991561881698 1.2414e-05 deg
node 223.2729066723086 4.8404e-05 deg
peri 207.2758146894543 6.7238e-05 deg
M 285.1760871426889 4.2922e-05 deg
tp 2459391.010315517213
(2021-Jun-25.51031552)
0.00022718 TDB
period 1878.860757446477
5.14
4.0635e-05
1.113e-07
d
yr
n .1916054708009704 4.1439e-09 deg/d
Q 3.602082363947706 5.1936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      4163 days (11.40 yr)  
   first obs. used      2005-10-25  
   last obs. used      2017-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55659  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 11:41:27  

Additional Information
 Earth MOID = 1.37751 au 
 Jupiter MOID = 1.76475 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456879.5 (2014-Aug-10.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2069788449099804 8.798e-08  
q 2.365884958041315 2.6917e-07 au
tp 2457496.373771065185
(2016-Apr-17.87377107)
0.00021917 TDB
node 223.4868613332096 4.8155e-05 deg
peri 205.1717792797611 6.8071e-05 deg
i 11.22992877845483 1.2487e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      4163 days (11.40 yr)  
   first obs. used      2005-10-25  
   last obs. used      2017-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55659  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 11:41:27  

Additional Information
 Jupiter MOID = 1.76475 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.740398106401649E-15 -2.348245371135477E-14 -1.15903257650232E-11 -9.002846943451128E-14 -2.50358401923509E-12 3.132368758536275E-14
q -2.348245371135477E-14 7.245404096582084E-14 3.770803984011629E-11 3.005909354570859E-13 8.034881829034583E-12 -1.050161400478427E-13
tp -1.15903257650232E-11 3.770803984011629E-11 4.803493307944421E-8 3.092642265080826E-10 1.061039829575149E-8 -1.289527850370677E-10
node -9.002846943451128E-14 3.005909354570859E-13 3.092642265080826E-10 2.31893838545257E-9 -2.205156220416045E-9 -2.76264511454343E-10
peri -2.50358401923509E-12 8.034881829034583E-12 1.061039829575149E-8 -2.205156220416045E-9 4.633678897794784E-9 2.42261739401535E-10
i 3.132368758536275E-14 -1.050161400478427E-13 -1.289527850370677E-10 -2.76264511454343E-10 2.42261739401535E-10 1.559199989219231E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO397617  

447242 (2005 UK204)          Discovered 2005-Oct-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

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Alternate Designations
 2005 UK204 = 2010 UR39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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