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JPL Small-Body Database Browser
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39329 (2001 XW154)
Classification: Main-belt Asteroid          SPK-ID: 2039329
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442006789259465 4.7397e-08  
a 3.047792018794904 2.1702e-08 au
q 2.608298340459598 1.3766e-07 au
i .5587944443513467 4.7167e-06 deg
node 271.0686021353853 0.00053179 deg
peri 252.5309304191712 0.00053211 deg
M 113.0856245650442 1.7847e-05 deg
tp 2458390.006114972290
(2018-Sep-28.50611497)
9.5383e-05 TDB
period 1943.46363169763
5.32
2.0758e-05
5.683e-08
d
yr
n .1852362936606832 1.9785e-09 deg/d
Q 3.48728569713021 2.4831e-08 au
  Orbit Determination Parameters
   # obs. used (total)      590  
   data-arc span      8724 days (23.89 yr)  
   first obs. used      1995-09-29  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:10:35  

Additional Information
 Earth MOID = 1.61619 au 
 Jupiter MOID = 1.49413 au 
 T_jup = 3.222 
[ 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 15.2   n/a MPO263674  

39329 (2001 XW154)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 XW154 = 1997 AV11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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