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202421 (2005 UQ513)
Classification: TransNeptunian Object          SPK-ID: 2202421
Ephemeris | Orbit Diagram | Orbital Elements | 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 .1446540843823858 8.9952e-06  
a 43.32924147604268 0.00061434 au
q 37.06148972334243 0.00084732 au
i 25.69941067055023 1.2384e-05 deg
node 307.531920537958 0.00012425 deg
peri 222.4804621754343 0.0049728 deg
M 228.6694059674504 0.0061209 deg
tp 2497004.863579752477
(2124-Jun-19.36357975)
1.3327 TDB
period 104176.5705051177
285.22
2.2156
0.006066
d
yr
n .00345567144564732 7.3494e-08 deg/d
Q 49.59699322874292 0.00070321 au
  Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      10917 days (29.89 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .35806  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 14:35:49  

Additional Information
 Earth MOID = 36.1126 au 
 Jupiter MOID = 31.9116 au 
 T_jup = 5.266 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 3.6   n/a MPO470162  
rotation period rot_per 7.03 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Ortiz, J.L.; Campo Bagatin, A.; Pravec, P.; et al. (2012) Mon. Not. Royal Ast. Soc. 424, 3156-3177.]

202421 (2005 UQ513)          Discovered 2005-Oct-21 by Palomar at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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