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103169 (1999 XR229)
Classification: Main-belt Asteroid          SPK-ID: 2103169
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1409062917773195 4.6489e-08  
a 2.585504602910363 1.3212e-08 au
q 2.221190736941073 1.1714e-07 au
i 13.87164409167425 4.567e-06 deg
node 27.7321960827379 2.453e-05 deg
peri 31.95111711627187 3.2524e-05 deg
M 20.52543257009755 2.1397e-05 deg
tp 2459113.922265451332
(2020-Sep-21.42226545)		 9.0069e-05 TDB
period 1518.505606694375
4.16		 1.164e-05
3.187e-08		 d
yr
n .2370751865603458 1.8173e-09 deg/d
Q 2.949818468879653 1.5074e-08 au
   Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      7767 days (21.26 yr)  
   first obs. used      1999-10-13  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50858  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:31  

Additional Information
 Earth MOID = 1.24223 au 
 Jupiter MOID = 2.49009 au 
 T_jup = 3.368 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO493580  

103169 (1999 XR229)          Discovered 1999-Dec-07 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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