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469911 (2005 YR51)
Classification: Main-belt Asteroid          SPK-ID: 2469911
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 .09596859750849088 1.0003e-07  
a 2.578537200047736 3.9253e-08 au
q 2.331078601335684 2.4331e-07 au
i 11.62584172387471 1.0104e-05 deg
node 275.2831365156314 4.339e-05 deg
peri 242.6323564459169 6.5989e-05 deg
M 129.0235341562343 5.4589e-05 deg
tp 2458458.467956383278
(2018-Dec-05.96795638)
0.0002265 TDB
period 1512.371653575507
4.14
3.4534e-05
9.455e-08
d
yr
n .2380367280416146 5.4354e-09 deg/d
Q 2.825995798759789 4.302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      4899 days (13.41 yr)  
   first obs. used      2005-12-02  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52889  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:19:10  

Additional Information
 Earth MOID = 1.36752 au 
 Jupiter MOID = 2.29529 au 
 T_jup = 3.391 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457296.5 (2015-Oct-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09588221485877615 9.9843e-08  
q 2.329211887908616 2.4264e-07 au
tp 2456943.909073680995
(2014-Oct-13.40907368)
0.00022139 TDB
node 275.3083945468564 4.3398e-05 deg
peri 241.6838807685817 6.6117e-05 deg
i 11.62731172387466 1.0105e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      4899 days (13.41 yr)  
   first obs. used      2005-12-02  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52889  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:19:10  

Additional Information
 Jupiter MOID = 2.29529 au 
 T_jup = 3.391 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.968624741474992E-15 -2.402671871498144E-14 -3.618447189860113E-12 -1.116761944403034E-13 -3.774590904580583E-13 3.632347740292782E-16
q -2.402671871498144E-14 5.88756290653527E-14 9.945490993109878E-12 2.81579048673785E-13 1.226691102246254E-12 4.084817487120152E-15
tp -3.618447189860113E-12 9.945490993109878E-12 4.901315715952681E-8 2.907319423385732E-10 1.107281039350307E-8 1.234890878330802E-11
node -1.116761944403034E-13 2.81579048673785E-13 2.907319423385732E-10 1.883397572310225E-9 -1.780173889346221E-9 5.347423965195266E-12
peri -3.774590904580583E-13 1.226691102246254E-12 1.107281039350307E-8 -1.780173889346221E-9 4.371503715118641E-9 -2.446342886400434E-12
i 3.632347740292782E-16 4.084817487120152E-15 1.234890878330802E-11 5.347423965195266E-12 -2.446342886400434E-12 1.021053632725947E-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 17.2   n/a MPO428112  

469911 (2005 YR51)          Discovered 2005-Dec-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-08-22

Alternate Designations
 2005 YR51 = 2009 WE213 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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