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48424 Souchay (1988 XW4)
Classification: Main-belt Asteroid          SPK-ID: 2048424
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05696696289181084 4.307e-08  
a 2.875550349293742 1.3734e-08 au
q 2.711738979251992 1.2488e-07 au
i 1.569003698108686 4.9834e-06 deg
node 201.200838233207 0.00011218 deg
peri 213.2727910111664 0.00011675 deg
M 170.2735538525084 3.3134e-05 deg
tp 2458158.087910203492
(2018-Feb-08.58791020)
0.0001622 TDB
period 1781.065499986187
4.88
1.276e-05
3.493e-08
d
yr
n .2021261991784087 1.4481e-09 deg/d
Q 3.039361719335492 1.4517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2010  
   data-arc span      11578 days (31.70 yr)  
   first obs. used      1988-12-05  
   last obs. used      2020-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:37:28  

Additional Information
 Earth MOID = 1.72302 au 
 Jupiter MOID = 2.16931 au 
 T_jup = 3.293 
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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 13.7   n/a MPO296493  
diameter diameter 4.957 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.261   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48424 Souchay           Discovered 1988 Dec. 5 by T. Nakamura at Kiso.
Jean Souchay (b. 1959), an astronomer at the Paris Observatory, is a specialist on the nutation of the earth's rotation. He also studies the non-principal axis rotation of minor planets and took part in the compilation of d´Alembert's collected works in 1997. He made the discovery observation of this object with the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040107/MPCPages.arcLast Updated: 2004-01-07

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Alternate Designations
 1988 XW4 = 1990 EY10 = 1991 JW6 = 1998 XE76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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