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118323 (1998 XU52)
Classification: Main-belt Asteroid          SPK-ID: 2118323
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .203144686750845 3.8647e-08  
a 2.285800020912488 7.2358e-09 au
q 1.821451891689146 8.6747e-08 au
i 4.500542306077636 3.931e-06 deg
node 288.0634030696665 4.812e-05 deg
peri 206.5934757964163 4.8834e-05 deg
M 50.33383601004953 9e-06 deg
tp 2458824.012762833506
(2019-Dec-06.51276283)
3.1228e-05 TDB
period 1262.280215782733
3.46
5.9937e-06
1.641e-08
d
yr
n .2851981640041518 1.3542e-09 deg/d
Q 2.750148150135831 8.7058e-09 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      7805 days (21.37 yr)  
   first obs. used      1998-12-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52904  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:19:36  

Additional Information
 Earth MOID = .836991 au 
 Jupiter MOID = 2.3024 au 
 T_jup = 3.570 
[ 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 15.9   n/a MPO359567  

118323 (1998 XU52)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1998 XU52 = 2001 SM149 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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