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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1501843152958593 8.7652e-05  
a 43.20067111249364 0.0052723 au
q 36.71260790114218 0.0081959 au
i 25.73151767990818 0.00013115 deg
node 307.8678936724876 0.00069264 deg
peri 221.8943860929184 0.023211 deg
M 223.9295010236227 0.026162 deg
tp 2496601.364419537890
(2123-May-12.86441954)
6.4824 JED
period 103713.231723238
283.95
18.986
0.05198
d
yr
n .003471109655137072 6.3543e-07 deg/d
Q 49.68873432384511 0.0060641 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 = 35.763 au 
 Jupiter MOID = 31.568 au 
 T_jup = 5.253 
[ 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. 2015-December); 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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