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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433408803310152 7.8769e-06  
a 43.39962246183521 0.00055795 au
q 37.17868237212205 0.00075558 au
i 25.69891211116859 1.0142e-05 deg
node 307.5252082690162 0.0001108 deg
peri 222.0036963884001 0.0045722 deg
M 229.8443922982653 0.0055815 deg
tp 2496956.653031372640
(2124-May-02.15303137)
1.1898 TDB
period 104430.4992408944
285.92
2.0139
0.005514
d
yr
n .003447268782748728 6.6478e-08 deg/d
Q 49.62056255154837 0.00063793 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      11040 days (30.23 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .37889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:57:21  

Additional Information
 Earth MOID = 36.2288 au 
 Jupiter MOID = 32.0235 au 
 T_jup = 5.271 
[ 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 4.01   n/a E2021B55  
rotation period rot_per 7.03 h n/a LCDB (Rev. 2020-October); 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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