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20118 (1995 WX)
Classification: Main-belt Asteroid          SPK-ID: 2020118
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 .08707227392655754 3.4329e-08  
a 2.750638421834456 1.3001e-08 au
q 2.511134079695572 9.2838e-08 au
i 2.675171995208049 3.4801e-06 deg
node 107.7210527460648 9.0948e-05 deg
peri 345.026833183157 9.4708e-05 deg
M 149.9670788977121 2.7685e-05 deg
tp 2458506.367920433192
(2019-Jan-22.86792043)
0.00012634 TDB
period 1666.282696714332
4.56
1.1813e-05
3.234e-08
d
yr
n .2160497739728485 1.5317e-09 deg/d
Q 2.990142763973339 1.4133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1270  
   data-arc span      10836 days (29.67 yr)  
   first obs. used      1990-09-28  
   last obs. used      2020-05-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51892  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:21  

Additional Information
 Earth MOID = 1.52769 au 
 Jupiter MOID = 2.14345 au 
 T_jup = 3.339 
[ 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 14.66   n/a E2021B10  
diameter diameter 6.056 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20118 (1995 WX)          Discovered 1995-Nov-17 by Kobayashi, T. at Oizumi
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WX = 1999 TY88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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