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JPL Small-Body Database Browser
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71166 (1999 XL203)
Classification: Main-belt Asteroid          SPK-ID: 2071166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1003919841152482 4.6314e-08  
a 3.178215498954655 3.5803e-08 au
q 2.859148139068763 1.4929e-07 au
i 18.94224195456304 5.5037e-06 deg
node 82.57768706829616 1.5237e-05 deg
peri 187.8160215428426 3.4503e-05 deg
M 346.8286464911532 3.4588e-05 deg
tp 2458676.218385287522
(2019-Jul-11.71838529)
0.00019932 TDB
period 2069.538159855727
5.67
3.4971e-05
9.575e-08
d
yr
n .1739518540818288 2.9394e-09 deg/d
Q 3.497282858840546 3.9398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      913  
   data-arc span      8392 days (22.98 yr)  
   first obs. used      1996-05-14  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51206  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:36:31  

Additional Information
 Earth MOID = 1.84372 au 
 Jupiter MOID = 1.60197 au 
 T_jup = 3.108 
[ 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 13.6   n/a MPO449449  
diameter diameter 11.408 km 0.312 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71166 (1999 XL203)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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