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

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433408801733122 7.8769e-06  
a 43.39962246689362 0.00055795 au
q 37.17868238329963 0.00075558 au
i 25.6989121078175 1.0142e-05 deg
node 307.5252082295936 0.0001108 deg
peri 222.0036963495184 0.0045722 deg
M 229.8443923781712 0.0055815 deg
tp 2496956.653014794116
(2124-May-02.15301479)
1.1898 TDB
period 104430.4992591521
285.92
2.0139
0.005514
d
yr
n .003447268782146038 6.6478e-08 deg/d
Q 49.62056255048761 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .37889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:26:43  

Additional Information
 Earth MOID = 36.2288 au 
 Jupiter MOID = 32.0235 au 
 T_jup = 5.271 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458411.5 (2018-Oct-20.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1482652474604487 7.8736e-06  
q 36.78255398436529 0.00075045 au
tp 2496960.329403891381
(2124-May-05.82940389)
1.1468 TDB
node 307.6338063735859 0.00011111 deg
peri 223.0329989136556 0.0043974 deg
i 25.70788988989699 1.0246e-05 deg
  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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .37889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:26:43  

Additional Information
 Jupiter MOID = 32.0235 au 
 T_jup = 5.271 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.199372122104815E-11 -5.301010337379256E-9 -3.633342979813482E-6 -4.315876781096362E-11 5.342546034615793E-9 -1.229551397153586E-11
q -5.301010337379256E-9 5.631736200707018E-7 -3.589117530639134E-5 -1.178743530688065E-9 -1.893979474477078E-6 8.219383603535551E-10
tp -3.633342979813482E-6 -3.589117530639134E-5 1.3150985849598 1.758679516335757E-5 .004244973417422227 1.43518043234581E-6
node -4.315876781096362E-11 -1.178743530688065E-9 1.758679516335757E-5 1.234454986781549E-8 4.822543696840108E-8 1.088986270820953E-9
peri 5.342546034615793E-9 -1.893979474477078E-6 .004244973417422227 4.822543696840108E-8 1.933702599522769E-5 9.51325885235367E-10
i -1.229551397153586E-11 8.219383603535551E-10 1.43518043234581E-6 1.088986270820953E-9 9.51325885235367E-10 1.049811514095557E-10

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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