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346657 (2008 YW2)
Classification: Main-belt Asteroid          SPK-ID: 2346657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05659949410066254 5.5462e-08  
a 2.772284487728392 3.7127e-08 au
q 2.615374588219851 1.4378e-07 au
i 4.604369241129119 7.2911e-06 deg
node 67.51937018069162 7.066e-05 deg
peri 34.94970192199491 9.5804e-05 deg
M 169.2030080439133 6.4335e-05 deg
tp 2458208.070384696333
(2018-Mar-30.57038470)
0.00030217 TDB
period 1685.990484491166
4.62
3.3868e-05
9.273e-08
d
yr
n .213524336769106 4.2893e-09 deg/d
Q 2.929194387236933 3.9228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      5640 days (15.44 yr)  
   first obs. used      2003-12-18  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50596  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:20:26  

Additional Information
 Earth MOID = 1.63385 au 
 Jupiter MOID = 2.15243 au 
 T_jup = 3.330 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457354.5 (2015-Nov-28.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05834259963244224 5.5863e-08  
q 2.607824360329359 1.4525e-07 au
tp 2456521.536530170289
(2013-Aug-17.03653017)
0.00029582 TDB
node 67.53492203834213 7.0613e-05 deg
peri 34.10929144833336 9.4289e-05 deg
i 4.607397256470829 7.297e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      5640 days (15.44 yr)  
   first obs. used      2003-12-18  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50596  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:20:26  

Additional Information
 Jupiter MOID = 2.15243 au 
 T_jup = 3.330 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.120637328377557E-15 -7.907654774460206E-15 -5.630793121154898E-12 6.853837475771699E-15 -1.160752036920314E-12 6.007183004144352E-16
q -7.907654774460206E-15 2.109811584056173E-14 1.365953946033728E-11 -1.968055935675498E-14 2.917382403879632E-12 -2.712585745853335E-16
tp -5.630793121154898E-12 1.365953946033728E-11 8.750652360157584E-8 -9.231917206709019E-11 1.84903903632733E-8 7.731387984716922E-12
node 6.853837475771699E-15 -1.968055935675498E-14 -9.231917206709019E-11 4.986239616222785E-9 -4.989682074777841E-9 -1.446684095888929E-10
peri -1.160752036920314E-12 2.917382403879632E-12 1.84903903632733E-8 -4.989682074777841E-9 8.890446979553198E-9 1.459679830889618E-10
i 6.007183004144352E-16 -2.712585745853335E-16 7.731387984716922E-12 -1.446684095888929E-10 1.459679830889618E-10 5.324686631940714E-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 16.5   n/a MPO434183  

346657 (2008 YW2)          Discovered 2008-Dec-22 by Lowe, A. at Mayhill
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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