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173346 (1999 XB90)
Classification: Main-belt Asteroid          SPK-ID: 2173346
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .178527225688391 5.918e-08  
a 2.441404754617711 1.3867e-08 au
q 2.005547536993364 1.4691e-07 au
i 2.998122890677085 4.0284e-06 deg
node 138.1910403810378 0.00012531 deg
peri 291.397237925731 0.0001261 deg
M 149.816991327225 1.6088e-05 deg
tp 2458420.648645056457
(2018-Oct-29.14864506)
5.9904e-05 TDB
period 1393.343211143113
3.81
1.1871e-05
3.25e-08
d
yr
n .2583713740598428 2.2013e-09 deg/d
Q 2.877261972242058 1.6343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      7448 days (20.39 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:27:07  

Additional Information
 Earth MOID = 1.0222 au 
 Jupiter MOID = 2.41128 au 
 T_jup = 3.477 
[ 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 16.6   n/a MPO417934  

173346 (1999 XB90)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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