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447227 (2005 UZ81)
Classification: Main-belt Asteroid          SPK-ID: 2447227
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04799280193638811 2.4064e-07  
a 2.880885306347619 8.1488e-08 au
q 2.742623548438627 6.4609e-07 au
i 1.069772015123297 1.3554e-05 deg
node 249.2389445396376 0.00068102 deg
peri 185.0982340239457 0.0009308 deg
M 312.704500355362 0.00059516 deg
tp 2459235.141429989945
(2021-Jan-20.64142999)
0.0029465 TDB
period 1786.024366611315
4.89
7.5779e-05
2.075e-07
d
yr
n .2015649991847761 8.5521e-09 deg/d
Q 3.019147064256611 8.5399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      5075 days (13.89 yr)  
   first obs. used      2003-04-01  
   last obs. used      2017-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6476  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 11:41:36  

Additional Information
 Earth MOID = 1.75747 au 
 Jupiter MOID = 2.11008 au 
 T_jup = 3.292 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456738.5 (2014-Mar-22.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04662694621159105 2.7264e-07  
q 2.748454064471703 7.4019e-07 au
tp 2457428.914468225954
(2016-Feb-10.41446823)
0.0030567 TDB
node 249.4493540917223 0.00068564 deg
peri 181.1581100740472 0.0009418 deg
i 1.064500429445333 1.3535e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      5075 days (13.89 yr)  
   first obs. used      2003-04-01  
   last obs. used      2017-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6476  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 11:41:36  

Additional Information
 Jupiter MOID = 2.11008 au 
 T_jup = 3.292 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.43314017475141E-14 -2.011613325511463E-13 -7.552298087242747E-10 -4.166799068148273E-12 -1.595608717454731E-10 3.861617012148104E-14
q -2.011613325511463E-13 5.478831459071923E-13 2.03694081279435E-9 1.124638800914998E-11 4.30050236519552E-10 -1.028630560696684E-13
tp -7.552298087242747E-10 2.03694081279435E-9 9.343477256284496E-6 4.836877659572957E-8 1.974428687233743E-6 -5.134598952223299E-10
node -4.166799068148273E-12 1.124638800914998E-11 4.836877659572957E-8 4.700960038111728E-7 -4.595326724554972E-7 -3.752802966784164E-9
peri -1.595608717454731E-10 4.30050236519552E-10 1.974428687233743E-6 -4.595326724554972E-7 8.869957564330031E-7 3.640978247663734E-9
i 3.861617012148104E-14 -1.028630560696684E-13 -5.134598952223299E-10 -3.752802966784164E-9 3.640978247663734E-9 1.831910961482366E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO495220  

447227 (2005 UZ81)          Discovered 2005-Oct-11 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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