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102943 (1999 XY51)
Classification: Main-belt Asteroid          SPK-ID: 2102943
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1735291851756021 3.9559e-08  
a 3.043112453899836 2.0433e-08 au
q 2.515043629376871 1.2908e-07 au
i 7.163347101578649 5.5155e-06 deg
node 58.34085896239544 3.471e-05 deg
peri 51.03027131973138 3.9354e-05 deg
M 309.9722179015768 1.7908e-05 deg
tp 2459469.953716296827
(2021-Sep-12.45371630)		 9.7526e-05 TDB
period 1938.98937346485
5.31		 1.9529e-05
5.347e-08		 d
yr
n .1856637302538193 1.8699e-09 deg/d
Q 3.571181278422801 2.3979e-08 au
   Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      9053 days (24.79 yr)  
   first obs. used      1996-03-26  
   last obs. used      2021-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52918  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:32:50  

Additional Information
 Earth MOID = 1.53909 au 
 Jupiter MOID = 1.61954 au 
 T_jup = 3.204 
[ 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 15.2   n/a MPO493578  

102943 (1999 XY51)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 XY51 = 2001 FT66 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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