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JPL Small-Body Database Browser
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71017 (1999 XW55)
Classification: Main-belt Asteroid          SPK-ID: 2071017
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08583488640549239 6.3805e-08  
a 2.767952122235756 1.7679e-08 au
q 2.530365266247808 1.7465e-07 au
i .4512328255787379 6.1254e-06 deg
node 334.891684938824 0.00059781 deg
peri 50.30466031116557 0.00059877 deg
M 112.2840079835869 3.1288e-05 deg
tp 2458075.871725171014
(2017-Nov-18.37172517)
0.00014593 TDB
period 1682.039876649598
4.61
1.6114e-05
4.412e-08
d
yr
n .2140258414783083 2.0504e-09 deg/d
Q 3.005538978223704 1.9196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      8889 days (24.34 yr)  
   first obs. used      1994-10-08  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52923  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:15:32  

Additional Information
 Earth MOID = 1.53334 au 
 Jupiter MOID = 2.391 au 
 T_jup = 3.333 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO436279  

71017 (1999 XW55)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XW55 = 1998 ME5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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