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120982 (1998 XE6)
Classification: Main-belt Asteroid          SPK-ID: 2120982
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569698232074618 2.8981e-08  
a 2.318625214075364 7.6306e-09 au
q 1.954671024137591 6.8233e-08 au
i 4.029289496133644 3.4055e-06 deg
node 89.44449914394693 6.0565e-05 deg
peri 356.6212233245515 6.2441e-05 deg
M 70.15172996054372 1.5171e-05 deg
tp 2458949.207143602919
(2020-Apr-09.70714360)		 5.4009e-05 TDB
period 1289.568031377567
3.53		 6.366e-06
1.743e-08		 d
yr
n .2791632478787753 1.3781e-09 deg/d
Q 2.682579404013138 8.8284e-09 au
   Orbit Determination Parameters
   # obs. used (total)      568  
   data-arc span      8150 days (22.31 yr)  
   first obs. used      1998-11-21  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61343  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:09:02  

Additional Information
 Earth MOID = .97064 au 
 Jupiter MOID = 2.51802 au 
 T_jup = 3.559 
[ 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 MPO417630  

120982 (1998 XE6)          Discovered 1998-Dec-08 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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