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215018 (2008 YS51)
Classification: Main-belt Asteroid          SPK-ID: 2215018
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 .0941841850148994 1.3566e-07  
a 2.153853361851365 2.7005e-08 au
q 1.950994438323792 3.1107e-07 au
i 2.983639546334941 7.8007e-06 deg
node 330.7455361781246 0.00019552 deg
peri 297.4272848604751 0.00020779 deg
M 73.21502616639593 6.1763e-05 deg
tp 2458765.687968080054
(2019-Oct-09.18796808)
0.00019922 TDB
period 1154.576265520467
3.16
2.1714e-05
5.945e-08
d
yr
n .3118027026458204 5.8641e-09 deg/d
Q 2.356712285378937 2.9549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      5371 days (14.70 yr)  
   first obs. used      2004-10-15  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57391  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:18:00  

Additional Information
 Earth MOID = .937135 au 
 Jupiter MOID = 2.7044 au 
 T_jup = 3.695 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457853.5 (2017-Apr-10.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09383935211168959 1.358e-07  
q 1.952072936104602 3.112e-07 au
tp 2457611.524816321452
(2016-Aug-11.02481632)
0.00020704 TDB
node 330.7891955688073 0.00019558 deg
peri 297.6351045461888 0.00020791 deg
i 2.982912662635479 7.8028e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      5371 days (14.70 yr)  
   first obs. used      2004-10-15  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57391  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:18:00  

Additional Information
 Jupiter MOID = 2.7044 au 
 T_jup = 3.695 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.844163103798631E-14 -4.220466741784374E-14 2.297334981594416E-12 6.870999939436661E-14 2.021548693303372E-12 -2.49342116497659E-14
q -4.220466741784374E-14 9.684526960435363E-14 -6.778587584600367E-12 -1.505809706227241E-13 -5.122737831410473E-12 5.636417499465059E-14
tp 2.297334981594416E-12 -6.778587584600367E-12 4.286386572402952E-8 -1.271252281150991E-10 1.460229782353664E-8 3.416397139911541E-11
node 6.870999939436661E-14 -1.505809706227241E-13 -1.271252281150991E-10 3.824980819842962E-8 -3.823541158737588E-8 1.051351965335511E-9
peri 2.021548693303372E-12 -5.122737831410473E-12 1.460229782353664E-8 -3.823541158737588E-8 4.322640172654404E-8 -1.040311880927506E-9
i -2.49342116497659E-14 5.636417499465059E-14 3.416397139911541E-11 1.051351965335511E-9 -1.040311880927506E-9 6.088296115327521E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.0   n/a MPO433407  

215018 (2008 YS51)          Discovered 2008-Dec-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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