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71149 (1999 XE186)
Classification: Main-belt Asteroid          SPK-ID: 2071149
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566577737752923 1.2704e-08  
a 2.698576541988292 1.4116e-08 au
q 2.27582354855818 3.2651e-08 au
i 13.35076714492417 1.1132e-06 deg
node 45.44604663104034 3.562e-06 deg
peri 235.4423752074195 1.1114e-05 deg
M 54.23829775059019 8.3492e-06 deg
tp 2458956.548165540467
(2020-Apr-17.04816554)
3.734e-05 TDB
period 1619.200160176047
4.43
1.2704e-05
3.478e-08
d
yr
n .2223319938165391 1.7444e-09 deg/d
Q 3.121329535418405 1.6327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1727  
   data-arc span      8105 days (22.19 yr)  
   first obs. used      1998-11-11  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:54:23  

Additional Information
 Earth MOID = 1.2873 au 
 Jupiter MOID = 2.05654 au 
 T_jup = 3.312 
[ 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 13.69   n/a E2021B10  
diameter diameter 5.254 km 0.349 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.232   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71149 (1999 XE186)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XE186 = 2000 YG134 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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