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190987 (2001 XG203)
Classification: Main-belt Asteroid          SPK-ID: 2190987
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07408516458873468 4.9561e-08  
a 2.414549023497838 1.8028e-08 au
q 2.235666761684432 1.2663e-07 au
i 6.761605147328637 5.8668e-06 deg
node 120.1813975524395 5.0648e-05 deg
peri 315.7120224236239 6.8949e-05 deg
M 16.24738253013514 4.7937e-05 deg
tp 2459138.650901620697
(2020-Oct-16.15090162)
0.00018222 TDB
period 1370.416150124578
3.75
1.5348e-05
4.202e-08
d
yr
n .2626939269267034 2.9421e-09 deg/d
Q 2.593431285311244 1.9364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      6978 days (19.10 yr)  
   first obs. used      2001-12-11  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49772  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:03:54  

Additional Information
 Earth MOID = 1.25642 au 
 Jupiter MOID = 2.56378 au 
 T_jup = 3.504 
[ 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 MPO440059  

190987 (2001 XG203)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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