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47421 (1999 XN166)
Classification: Main-belt Asteroid          SPK-ID: 2047421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09501517939760314 3.788e-08  
a 2.307001148499338 8.3658e-09 au
q 2.087801020504197 8.7764e-08 au
i 6.302109340957108 4.9596e-06 deg
node 347.978723677289 3.5876e-05 deg
peri 78.18835744410259 4.5775e-05 deg
M 302.447299332791 2.6373e-05 deg
tp 2459205.113059829094
(2020-Dec-21.61305983)
9.3668e-05 TDB
period 1279.882623830415
3.50
6.9618e-06
1.906e-08
d
yr
n .2812757930274864 1.53e-09 deg/d
Q 2.526201276494479 9.1607e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1237  
   data-arc span      8667 days (23.73 yr)  
   first obs. used      1997-02-04  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:42:20  

Additional Information
 Earth MOID = 1.11181 au 
 Jupiter MOID = 2.69698 au 
 T_jup = 3.573 
[ 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 15.2   n/a MPO385119  

47421 (1999 XN166)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XN166 = 2001 FH171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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