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JPL Small-Body Database Browser
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71171 (1999 XG206)
Classification: Main-belt Asteroid          SPK-ID: 2071171
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1104056461199356 4.819e-08  
a 3.096722745486881 2.6493e-08 au
q 2.754827069917101 1.4875e-07 au
i 12.55176473957827 5.9576e-06 deg
node 62.02895403590009 2.6099e-05 deg
peri 27.25413710356587 3.9425e-05 deg
M 212.4828325872817 3.0485e-05 deg
tp 2459416.127718839565
(2021-Jul-20.62771884)
0.00017199 TDB
period 1990.452934611652
5.45
2.5543e-05
6.993e-08
d
yr
n .1808633571485265 2.321e-09 deg/d
Q 3.438618421056661 2.9418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      7233 days (19.80 yr)  
   first obs. used      1998-09-21  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58261  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:13:41  

Additional Information
 Earth MOID = 1.77706 au 
 Jupiter MOID = 1.86507 au 
 T_jup = 3.177 
[ 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 13.9   n/a MPO439544  
diameter diameter 5.233 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71171 (1999 XG206)          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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