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202421 (2005 UQ513)
Classification: TransNeptunian Object          SPK-ID: 2202421
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1504019819243942 8.7842e-05  
a 43.16972190464844 0.0052645 au
q 36.67691017106438 0.0081958 au
i 25.72719408041833 0.000131 deg
node 307.8289285239376 0.00069307 deg
peri 222.2770136901505 0.023041 deg
M 224.2019569861278 0.025957 deg
tp 2496680.838245873400
(2123-Jul-31.33824587)
6.521 JED
period 103601.8005581807
283.65
18.951
0.05189
d
yr
n .003474843082460051 6.3563e-07 deg/d
Q 49.6625336382325 0.0060563 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      8474 days (23.20 yr)  
   first obs. used      1990-09-15  
   last obs. used      2013-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      3  
   fit RMS      .41737  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 22:45:15  

Additional Information
 Earth MOID = 35.7269 au 
 Jupiter MOID = 31.5356 au 
 T_jup = 5.251 
[ 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 3.4 mag .37743 8 autocmod 2.6
rotation period rot_per 7.03 h n/a LCDB (Rev. 2016-February); 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) MNRAS 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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