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357129 (2001 XU266)
Classification: Mars-crossing Asteroid          SPK-ID: 2357129
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3620328698824848 3.8109e-08  
a 2.283000258781275 1.6966e-08 au
q 1.456479123152234 8.3467e-08 au
i 22.59450344788788 8.138e-06 deg
node 163.861585921665 1.1002e-05 deg
peri 241.5548245524361 1.799e-05 deg
M 96.62556803467398 1.3537e-05 deg
tp 2458662.320772918366
(2019-Jun-27.82077292)
4.6251e-05 TDB
period 1259.961770219041
3.45
1.4045e-05
3.845e-08
d
yr
n .2857229548618884 3.1851e-09 deg/d
Q 3.109521394410315 2.3109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      6705 days (18.36 yr)  
   first obs. used      2001-12-09  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47491  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 23:13:37  

Additional Information
 Earth MOID = .568336 au 
 Jupiter MOID = 2.62621 au 
 T_jup = 3.419 
[ 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 17.4   n/a MPO418816  

357129 (2001 XU266)          Discovered 2001-Dec-09 by Tholen, D. J. at Mauna Kea
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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