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295900 (2008 WY85)
Classification: Main-belt Asteroid          SPK-ID: 2295900
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458088551918266 7.2642e-08  
a 2.68238357867676 3.0137e-08 au
q 2.291268299884547 1.8696e-07 au
i 4.618737415308265 8.6297e-06 deg
node 226.3496083791317 8.0853e-05 deg
peri 208.3655738314112 8.5739e-05 deg
M 232.7851036981498 3.1379e-05 deg
tp 2459567.541985984728
(2021-Dec-19.04198598)
0.00014544 TDB
period 1604.647890213571
4.39
2.7043e-05
7.404e-08
d
yr
n .2243482836300528 3.7809e-09 deg/d
Q 3.073498857468974 3.4532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      7107 days (19.46 yr)  
   first obs. used      1999-12-12  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6177  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:43:19  

Additional Information
 Earth MOID = 1.30741 au 
 Jupiter MOID = 2.1961 au 
 T_jup = 3.356 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457417.5 (2016-Jan-30.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1480839742719479 7.3443e-08  
q 2.282249498875267 1.9056e-07 au
tp 2457960.707979126026
(2017-Jul-26.20797913)
0.00012747 TDB
node 226.4736800254579 8.0578e-05 deg
peri 207.6204885449158 8.5282e-05 deg
i 4.628452507718264 8.6499e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      7107 days (19.46 yr)  
   first obs. used      1999-12-12  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6177  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:43:19  

Additional Information
 Jupiter MOID = 2.1961 au 
 T_jup = 3.356 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.393833961851954E-15 -1.388779176787935E-14 -5.687740179434023E-13 1.63933520366619E-14 -3.466188566973512E-13 -3.950886824301322E-15
q -1.388779176787935E-14 3.631269894603212E-14 3.126598940320438E-12 -3.781853003255319E-14 1.208131854880401E-12 9.564309555090093E-15
tp -5.687740179434023E-13 3.126598940320438E-12 1.62474429865533E-8 2.781752470321691E-11 3.562466382386374E-9 -9.409998035480056E-12
node 1.63933520366619E-14 -3.781853003255319E-14 2.781752470321691E-11 6.492883499655581E-9 -6.46588680566398E-9 -5.46249181197568E-11
peri -3.466188566973512E-13 1.208131854880401E-12 3.562466382386374E-9 -6.46588680566398E-9 7.273083284777701E-9 5.261597761449677E-11
i -3.950886824301322E-15 9.564309555090093E-15 -9.409998035480056E-12 -5.46249181197568E-11 5.261597761449677E-11 7.482065740576261E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO437322  

295900 (2008 WY85)          Discovered 2008-Nov-20 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 WY85 = 1999 XL252 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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