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117338 (2004 XF18)
Classification: Main-belt Asteroid          SPK-ID: 2117338
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613504722254388 7.1543e-08  
a 3.196179091463395 3.6065e-08 au
q 2.680474085738702 2.2863e-07 au
i 4.133514188396639 8.7023e-06 deg
node 230.3566187306336 8.2439e-05 deg
peri 114.5448947129693 8.5905e-05 deg
M 326.630260922634 2.6656e-05 deg
tp 2459193.961876606515
(2020-Dec-10.46187661)
0.00015606 TDB
period 2087.108784904608
5.71
3.5326e-05
9.672e-08
d
yr
n .1724874154158926 2.9195e-09 deg/d
Q 3.711884097188087 4.1884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      363  
   data-arc span      8839 days (24.20 yr)  
   first obs. used      1995-02-25  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5284  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:40  

Additional Information
 Earth MOID = 1.67668 au 
 Jupiter MOID = 1.74454 au 
 T_jup = 3.171 
[ 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 15.0   n/a MPO436563  

117338 (2004 XF18)          Discovered 2004-Dec-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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