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259144 (2002 XW81)
Classification: Main-belt Asteroid          SPK-ID: 2259144
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846862635030786 7.8563e-08  
a 2.575949340940897 2.1169e-08 au
q 2.100206882189305 2.114e-07 au
i 12.88833751913885 5.0745e-06 deg
node 82.81045998140642 2.5462e-05 deg
peri 319.1313223626925 2.9234e-05 deg
M 123.01863157071 1.6052e-05 deg
tp 2458484.472561697048
(2018-Dec-31.97256170)
6.3063e-05 TDB
period 1510.095466167529
4.13
1.8615e-05
5.097e-08
d
yr
n .2383955240350757 2.9387e-09 deg/d
Q 3.051691799692489 2.5079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      8772 days (24.02 yr)  
   first obs. used      1996-04-23  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 14:46:35  

Additional Information
 Earth MOID = 1.12756 au 
 Jupiter MOID = 2.36424 au 
 T_jup = 3.368 
[ show covariance matrix ]

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 16.0   n/a MPO418378  

259144 (2002 XW81)          Discovered 2002-Dec-11 by LINEAR at Socorro
Reference: 20110119/Numbers.arcLast Updated: 2011-01-25

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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