Look up: ephemeris

1. 
   Ephemeris
   The predictions of current satellite position that are transmitted to the user in the data message.
   Found on http://www.navtechgps.com/glossary.asp
   
   
2. 
   Ephemeris
   A tabular statement of the spatial coordinates of a celestial body or a spacecraft as a function of time.
   Found on http://www-v0ims.gsfc.nasa.gov/v0ims/glo
   
   
3. 
   Ephemeris
   A description of the path of a celestial body indexed by time (from the Latin word ephemeris meaning diary) The navigation message from each GPS satellite includes a predicted ephemeris for the orbit of that satellite valid for the current hour. The ephemeris is repeated every 30 seconds and is in the form of a set of 16 Keplerian-type parameters with corrections that account for the perturbations to the orbit caused by the earth's gravitational field and other forces.
   Found on http://www.ordnancesurvey.co.uk/oswebsit
   
   
4. 
   ephemeris
   [n] - an annual publication containing tables that give the positions of the celestial bodies throughout the year
   Found on http://www.webdictionary.co.uk/definitio
   
   
5. 
   Ephemeris
   a book of tables showing the motions of the planets, plus other useful data, usually for either noon or midnight GMT each day; the sourcebook of the modern astrologer.
   Found on http://www.isleofavalon.co.uk/Glastonbur
   
   
6. 
   Ephemeris
   A table or list of the predicted position of an object such as a planet.
   Found on http://www.delscope.demon.co.uk/astronom
   
   
7. 
   ephemeris
   a tabular statement of the spatial co-ordinates of a celestial body or a spacecraft as a function of time Category: The cosmos
   Found on http://www.mijnwoordenboek.nl/definition
   
   
8. 
   Ephemeris
   E·phem'e·ris noun ; plural Ephemerides . [ Latin , a diary, Greek ..., also, a calendar, from .... See Ephemera .] 1. A diary; a journal. Johnson. 2. (Anat.) (a) A publication giving the computed places of the heavenly bodies for each day of the year, with other numerical data, for the use of the astronomer and navigator; an astronomical a ...
   Found on http://www.encyclo.co.uk/webster/E/53
   
   
9. 
   ephemeris
   Origin: L, a diary, Gr, also, a calendar, fr. See Ephemera. ... 1. A diary; a journal. ... 2. <anatomy> A publication giving the computed places of the heavenly bodies for each day of the year, with other numerical data, for the use of the astronomer and navigator; an astronomical almanac; as, the 'American Ephemeris and Nautical Almanac.' Any ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
10. 
    ephemeris
    noun an annual publication containing astronomical tables that give the positions of the celestial bodies throughout the year; `today computers calculate the ephemerides`
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
11. 
    Ephemeris
    An `ephemeris` (plural: `ephemerides`; from the Greek word `ephemeros` = daily) is a table of values that gives the positions of astronomical objects in the sky at a given time or times. Different kinds are used for astronomy and astrology. Even though this was also one of the first applications of mechanical computers, an ephemeris will still often be a simple printed table. The position is given to astronomers in a Spherical polar coordinate s...
    Found on http://en.wikipedia.org/wiki/Ephemeris
    
    
12. 
    Ephemeris
    • (n.) A publication giving the computed places of the heavenly bodies for each day of the year, with other numerical data, for the use of the astronomer and navigator; an astronomical almanac; as, the `American Ephemeris and Nautical Almanac.` • (n.) A collective name for reviews, magazines, and all kinds of periodical literature. •...
    Found on http://thinkexist.com/dictionary/meaning
    
    
13. 
    ephemeris
    table giving the positions of one or more celestial bodies, often published with supplementary information. Ephemerides were constructed as early as ... [4 related articles]
    Found on http://www.britannica.com/eb/a-z/e/35
    
    
14. 
    ephemeris
    A tabulation of the prediction positions of a celestial object, such as a planet or comet, in an orderly sequence for a number of dates. An ephemeris may also list distances of an object from the Sun and/or Earth, as well as magnitudes. Sets of ephemerides are published annually in almanacs.
    Found on http://www.daviddarling.info/encyclopedi
    
    
15. 
    ephemeris
    ephemeris (ifem'uris) (pl., ephemerides), table listing the position of one or more celestial bodies for each day of the year. The French publication Connaissance de Temps is the oldest of the national astronomical ephemerides, founded in 1679. The Nautical Almanac and Astronomical Ephemeris (us...
    Found on http://www.infoplease.com/ce6/sci/A08174