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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 ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569311495456925 3.4479e-08  
a 2.699936465190749 1.4884e-08 au
q 2.276232332008031 9.3078e-08 au
i 13.35032589476836 5.0232e-06 deg
node 45.47111688213845 1.7895e-05 deg
peri 235.5660836023466 2.5446e-05 deg
M 9.655818144574591 1.6369e-05 deg
tp 2458957.037438263807
(2020-Apr-17.53743826)
7.3745e-05 TDB
period 1620.424286244537
4.44
1.3399e-05
3.668e-08
d
yr
n .2221640363304655 1.8371e-09 deg/d
Q 3.123640598373467 1.722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1630  
   data-arc span      8041 days (22.02 yr)  
   first obs. used      1998-11-11  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45319  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:55:44  

Additional Information
 Earth MOID = 1.28954 au 
 Jupiter MOID = 2.05632 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 13.7   n/a MPO474592  
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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