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                         IMCCE - Observatoire de Paris

          Containt of the directory:  /pub/ephem/satel/fp7-espace/Uranus/SPICE

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CONTENTS: These files give the ephemeris of the five main Uranian moons.


AUTHOR  : V. Lainey


ADDRESS : IMCCE - Observatoire de Paris
          77 av. Denfert Rochereau, F-75014 PARIS
          Phone: (1) 40 51 22 69   
          Fax:   (1) 46 33 28 34 
          e-mail: lainey@imcce.fr


README FILE:   
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28/05/2013
 
SPK file prepared by: Valery Lainey (lainey@imcce.fr)
 
This file provides IMCCE ephemeris "NOE-7-2013-MAIN" of the five main Uranian moons (Ariel, Umbriel, Titania, Oberon and Miranda).
 
Time coverage: 2395662.d0 (31/12/1846, 12H00) - 2504019.5 (03/09/2143, 00H00)
 
Polynomial degree: 20
 
The accuracy of Chebychev representations is better than 60 m (position) and 9.d-6 km/day (velocity) for all moons.
 
Expected external accuracy of these ephemerides highly depends on the moon and time considered. 
Over the whole period available, an accuracy of about 5,000 km for the four outermost moons is expected. 10,000 km is more likely for Miranda. 
An accuracy of few hundreds of kilometers is expected over the modern period (1980-2020).
 
SPK file was generated on PC-Linux.
 
Questions, comments or special requests should be sent to V.Lainey (lainey@imcce.fr)
 
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These ephemerides and data are issued from the activity of the Institut de Mécanique Céleste et de Calcul des 
Ephémérides (IMCCE-Paris Observatory) in Celestial Mechanics and Astrometry.
 
This work was supported by the ESPaCE (European Satellite Partnership for Computing Ephemerides) FP7-Program under ESA grant agreement contract 263466. 
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