Search results
Results From The WOW.Com Content Network
JPL Horizons On-Line Ephemeris System provides access to key Solar System data and flexible production of highly accurate ephemerides for Solar System objects. Osculating elements at a given epoch (such as produced by the JPL Small-Body Database ) are always an approximation to an object's orbit (i.e. an unperturbed conic orbit or a " two-body ...
The JPL Small-Body Database (SBDB) is an astronomy database about small Solar System bodies.It is maintained by Jet Propulsion Laboratory (JPL) and NASA and provides data for all known asteroids and several comets, including orbital parameters and diagrams, physical diagrams, close approach details, radar astrometry, discovery circumstances, alternate designations and lists of publications ...
List of academic databases and search engines. This article contains a representative list of notable databases and search engines useful in an academic setting for finding and accessing articles in academic journals, institutional repositories, archives, or other collections of scientific and other articles. Databases and search engines differ ...
List of NASA missions. Comparison of NASA Mercury, Gemini, :) Apollo, and Space Shuttle spacecraft with their launch vehicles. This is a list of NASA missions, both crewed and robotic, since the establishment of NASA in 1957. There are over 80 currently active science missions. [1]
LAUREL, Md. — The New Horizons spacecraft’s picture of an icy object 4 billion miles from Earth became a lot clearer today, and took on a surprisingly familiar shape. “It’s a snowman ...
Jet Propulsion Laboratory Development Ephemeris. Jet Propulsion Laboratory Development Ephemeris (abbreviated JPL DE (number), or simply DE (number)) designates one of a series of mathematical models of the Solar System produced at the Jet Propulsion Laboratory in Pasadena, California, for use in spacecraft navigation and astronomy.
Copernicus is the Earth observation component of the European Union Space Programme, managed by the European Commission and implemented in partnership with the EU Member States, the European Space Agency (ESA), the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), the European Centre for Medium-Range Weather Forecasts (ECMWF), the Joint Research Centre (JRC ...
In astronomy and celestial navigation, an ephemeris (/ ɪ ˈ f ɛ m ə r ə s /; pl. ephemerides / ˌ ɛ f ə ˈ m ɛ r ə d iː z /; from Latin ephemeris 'diary', and Greek ἐφημερίς (ephemeris) 'diary, journal') is a book with tables that gives the trajectory of naturally occurring astronomical objects as well as artificial satellites in the sky, i.e., the position (and possibly ...