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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1422313087732003 7.8718e-06  
a 43.46719679951522 0.00056002 au
q 37.28480051001791 0.00075602 au
i 25.69932840292295 1.014e-05 deg
node 307.5313183854786 0.00011069 deg
peri 221.4831074939778 0.0046168 deg
M 231.0557035845309 0.0056122 deg
tp 2496888.664428378928
(2124-Feb-24.16442838)
1.1995 TDB
period 104674.4956498688
286.58
2.0229
0.005538
d
yr
n .003439233193959519 6.6466e-08 deg/d
Q 49.64959308901253 0.00063968 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 = 36.3352 au 
 Jupiter MOID = 32.1246 au 
 T_jup = 5.275 
[ 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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