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22740 Rayleigh (1998 SX146)
Classification: Outer Main-belt Asteroid          SPK-ID: 2022740
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2158133844896236 3.2728e-08  
a 3.244862647961492 1.711e-08 au
q 2.54457785770096 1.0982e-07 au
i 3.116767434040899 3.5542e-06 deg
node 169.0136504615393 7.6635e-05 deg
peri 112.4327958604523 7.7309e-05 deg
M 9.692876625085095 9.0029e-06 deg
tp 2459143.016515196739
(2020-Oct-20.51651520)
5.3391e-05 TDB
period 2134.97554230888
5.85
1.6886e-05
4.623e-08
d
yr
n .1686201986232949 1.3337e-09 deg/d
Q 3.945147438222023 2.0803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1831  
   data-arc span      12422 days (34.01 yr)  
   first obs. used      1986-09-30  
   last obs. used      2020-10-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49585  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:11:09  

Additional Information
 Earth MOID = 1.52834 au 
 Jupiter MOID = 1.23376 au 
 T_jup = 3.143 
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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 13.43   n/a E2021B10  
diameter diameter 9.819 km 2.434 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.088   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

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

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Alternate Designations
 1998 SX146 = 1986 SN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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