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JPL Small-Body Database Browser
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71170 (1999 XE206)
Classification: Main-belt Asteroid          SPK-ID: 2071170
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07583929722929242 4.4105e-08  
a 3.063985818638178 2.648e-08 au
q 2.831615287432141 1.3797e-07 au
i 11.24322179450627 5.9843e-06 deg
node 53.25409529361876 2.6898e-05 deg
peri 76.95865975518703 5.0945e-05 deg
M 273.186684556763 4.3732e-05 deg
tp 2459472.902725813075
(2021-Sep-15.40272581)
0.0002403 TDB
period 1958.973464202091
5.36
2.5395e-05
6.953e-08
d
yr
n .1837697174456784 2.3823e-09 deg/d
Q 3.296356349844216 2.8488e-08 au
  Orbit Determination Parameters
   # obs. used (total)      778  
   data-arc span      7795 days (21.34 yr)  
   first obs. used      1998-09-20  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:21:48  

Additional Information
 Earth MOID = 1.87373 au 
 Jupiter MOID = 1.83639 au 
 T_jup = 3.199 
[ 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 14.2   n/a MPO366066  
diameter diameter 5.235 km 0.364 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.178   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71170 (1999 XE206)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 XE206 = 1998 SD65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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