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22740 Rayleigh (1998 SX146)
Classification: Outer Main-belt Asteroid          SPK-ID: 2022740
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2135272213047698 5.4577e-08  
a 3.244595635213096 3.79e-08 AU
q 2.551786144968459 1.8632e-07 AU
i 3.115100974475901 6.7112e-06 deg
node 169.0643551102483 0.00010882 deg
peri 112.5407445001266 0.00011035 deg
M 358.3186123518881 1.6737e-05 deg
tp 2457010.470217859207
(2014-Dec-18.97021786)
9.9277e-05 JED
period 2134.712023931543
5.84
3.7403e-05
1.024e-07
d
yr
n .1686410138529977 2.9548e-09 deg/d
Q 3.937405125457733 4.5992e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      10167 days (27.84 yr)  
   first obs. used      1986-09-30  
   last obs. used      2014-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53979  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:46:51  

Additional Information
 Earth MOID = 1.5388 AU 
 T_jup = 3.144 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO302203  

22740 Rayleigh           Discovered 1998 Sept. 20 by E. W. Elst at the European Southern Observatory.
John William Rayleigh (1842-1919) was an English physicist who discovered the element argon, for which he was honored with the Nobel Prize for physics in 1904. President of the Royal Society from 1905 to 1908, he is also known for his work on the phenomenon of Rayleigh scattering, explaining the blue color of the daytime sky.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070601/MPCPages.arcLast Updated: 2007-06-06

[ show close-approach data ]
Alternate Designations
 1998 SX146 = 1986 SN 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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