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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904119949991218 4.5859e-08  
a 2.605506305587363 1.3422e-08 au
q 2.109386651957681 1.2331e-07 au
i 3.110643173896954 5.2106e-06 deg
node 315.2439473808543 7.1134e-05 deg
peri 241.2245338777203 7.2065e-05 deg
M 342.3224588913109 1.2025e-05 deg
tp 2459075.932061145774
(2020-Aug-14.43206115)
5.1525e-05 TDB
period 1536.160591878411
4.21
1.187e-05
3.25e-08
d
yr
n .2343504981857355 1.8109e-09 deg/d
Q 3.101625959217044 1.5978e-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 = 1.1102 au 
 Jupiter MOID = 1.87343 au 
 T_jup = 3.384 
[ 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 MPO426746  

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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