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Дата изменения: Mon May 18 12:17:31 2009
Дата индексирования: Mon Oct 1 22:17:31 2012
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Поисковые слова: trees
Natural Satellites Data Center. Objectiv.
top2
 

  Natural Satellites Data Center NSDC
IAU  -  IMCCE

 Natural Satellites Ephemerides Server MULTI-SAT.
IMCCE  -  SAI

 

OBSERVATIONAL DATABASES, THEORIES AND EPHEMERIDES
OF NATURAL PLANETARY SATELLITES.


EASY ACCESS
[image] A light movement of your arm ... and all necessary data are instantly available on your computer screen. The most complete satellite theories are at your disposal. The most perfect algorithms and calculating programs are working for you. Databases, bibliography and ... nothing superfluous.

INDEPENDENCE AND CONTROL
[image] It is necessary to have several independent models of satellite motion which could be used to control one another. This allows to have reliable satellite ephemerides, the most adequate and the most accurate.

NEW ORBITS
[image] New orbital models for all the new faint satellites of Jupiter, Saturn, Uranus and Neptune were determined independently from other authors on the basis of all published observations using numerical integration method applied to the equations of satellites motions.

PERFECTION
[image] For all other satellites the most perfect theories and models of motion built by different authors worldwide have been used. Corresponding ephemerides are available.

HELP FOR THE OBSERVERS
[image] You may enter the results of your observations for a series of dates in tabular form and you will get deviations between theory and observations (O-C) for the whole table at once as well as statistic parameters.

DATA ACCESSIBLE TO EVERYONE
[image] This database gathers all available astrometric data on natural planetary satellites under the auspices of IAU and is avaialable for all. Please, send your observations in order to help the other interested astronomers.