Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05696696538280091 4.3257e-08  
a 2.875550350286745 1.3861e-08 au
q 2.711738973025459 1.2526e-07 au
i 1.569002857518488 5.0675e-06 deg
node 201.2008566138582 0.00011418 deg
peri 213.2727686990012 0.00011889 deg
M 170.2735572832935 3.3725e-05 deg
tp 2458158.087892793651
(2018-Feb-08.58789279)		 0.00016531 TDB
period 1781.06550090876
4.88		 1.2878e-05
3.526e-08		 d
yr
n .2021261990737094 1.4614e-09 deg/d
Q 3.039361727548032 1.465e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1961  
   data-arc span      11516 days (31.53 yr)  
   first obs. used      1988-12-05  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:48:52  

Additional Information
 Earth MOID = 1.72302 au 
 Jupiter MOID = 2.16931 au 
 T_jup = 3.293 
[ 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 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

[ show close-approach data ]
Alternate Designations
 1988 XW4 = 1990 EY10 = 1991 JW6 = 1998 XE76 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-12 18:47 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin