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118320 (1998 XB11)
Classification: Main-belt Asteroid          SPK-ID: 2118320
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903120387877012 4.5886e-08  
a 2.605223181331505 1.3323e-08 au
q 2.109417846195325 1.2329e-07 au
i 3.110647866309415 5.2107e-06 deg
node 315.2439462098548 7.1136e-05 deg
peri 241.2449097473129 7.2068e-05 deg
M 29.18355612845655 1.2165e-05 deg
tp 2459075.990772630113
(2020-Aug-14.49077263)
5.1543e-05 TDB
period 1535.910211074397
4.21
1.1782e-05
3.226e-08
d
yr
n .2343887015036989 1.798e-09 deg/d
Q 3.101028516467685 1.5859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      7798 days (21.35 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52282  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:19:36  

Additional Information
 Earth MOID = 1.10952 au 
 Jupiter MOID = 1.87294 au 
 T_jup = 3.385 
[ 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 16.06   n/a E2021B55  

118320 (1998 XB11)          Discovered 1998-Dec-15 by ODAS at Caussols
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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