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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446551077544727 8.0163e-06  
a 43.32913903342504 0.00057779 au
q 37.06135775763641 0.00078039 au
i 25.69941570568473 1.0305e-05 deg
node 307.5319613224983 0.00011182 deg
peri 222.4811029117055 0.004656 deg
M 228.6686535124115 0.0056847 deg
tp 2497004.946544375664
(2124-Jun-19.44654438)
1.1885 TDB
period 104176.2010508909
285.22
2.0838
0.005705
d
yr
n .00345568370096484 6.9122e-08 deg/d
Q 49.59692030921367 0.00066137 au
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      11008 days (30.14 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .37819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:21:23  

Additional Information
 Earth MOID = 36.1125 au 
 Jupiter MOID = 31.9114 au 
 T_jup = 5.266 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458382.5 (2018-Sep-21.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1484197697422919 8.0138e-06  
q 36.77128412883018 0.0007759 au
tp 2496955.639003767697
(2124-May-01.13900377)
1.1544 TDB
node 307.6393612019615 0.00011203 deg
peri 223.0448660706463 0.0045214 deg
i 25.70838784764807 1.0402e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      648  
   data-arc span      11008 days (30.14 yr)  
   first obs. used      1990-09-15  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .37819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 05:21:23  

Additional Information
 Jupiter MOID = 31.9114 au 
 T_jup = 5.266 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.422125633818982E-11 -5.595693480854293E-9 -3.417694374352762E-6 -3.846908940392212E-11 6.945523860549121E-9 -1.229054322895766E-11
q -5.595693480854293E-9 6.020260090641234E-7 -6.369212638853222E-5 -1.777366519735799E-9 -2.103351197483921E-6 8.23236793780973E-10
tp -3.417694374352762E-6 -6.369212638853222E-5 1.332653692096638 1.793761509181555E-5 .004387481128986253 1.426269265807136E-6
node -3.846908940392212E-11 -1.777366519735799E-9 1.793761509181555E-5 1.255066045455274E-8 5.103634778872975E-8 1.114258380452723E-9
peri 6.945523860549121E-9 -2.103351197483921E-6 .004387481128986253 5.103634778872975E-8 2.044261495955461E-5 8.971989102549286E-10
i -1.229054322895766E-11 8.23236793780973E-10 1.426269265807136E-6 1.114258380452723E-9 8.971989102549286E-10 1.081926369137874E-10

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 3.6   n/a MPO470162  
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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