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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2030232904243171 3.8253e-08  
a 2.286093427673554 7.1299e-09 au
q 1.821963217769864 8.5639e-08 au
i 4.500413081547157 3.8019e-06 deg
node 288.0641396890609 4.7936e-05 deg
peri 206.6344201275596 4.8659e-05 deg
M 107.3384268305236 9.0456e-06 deg
tp 2458824.063163834294
(2019-Dec-06.56316383)
3.1016e-05 TDB
period 1262.523264232503
3.46
5.9063e-06
1.617e-08
d
yr
n .2851432604838745 1.334e-09 deg/d
Q 2.750223637577244 8.5774e-09 au
  Orbit Determination Parameters
   # obs. used (total)      924  
   data-arc span      7851 days (21.49 yr)  
   first obs. used      1998-12-14  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:12:22  

Additional Information
 Earth MOID = .837412 au 
 Jupiter MOID = 2.30164 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 15.93   n/a E2021B55  

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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