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249121 (2007 XW19)
Classification: Main-belt Asteroid          SPK-ID: 2249121
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1756736926301346 5.3247e-08  
a 2.260428801977791 1.7053e-08 au
q 1.863330927406841 1.1697e-07 au
i 5.674149034349768 5.2261e-06 deg
node 303.5264169590925 7.8691e-05 deg
peri 12.34095611549416 8.2488e-05 deg
M 332.853765919853 2.7895e-05 deg
tp 2459094.103430218792
(2020-Sep-01.60343022)		 9.6656e-05 TDB
period 1241.322637212835
3.40		 1.4047e-05
3.846e-08		 d
yr
n .2900132400777888 3.2818e-09 deg/d
Q 2.657526676548741 2.0048e-08 au
   Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      6731 days (18.43 yr)  
   first obs. used      2000-09-22  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57496  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:07:34  

Additional Information
 Earth MOID = .850016 au 
 Jupiter MOID = 2.62157 au 
 T_jup = 3.593 
[ 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 16.8   n/a MPO376661  

249121 (2007 XW19)          Discovered 2007-Dec-12 by LINEAR at Socorro
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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