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Project Description

This ephemeris has been the basis for the Astronomical Almanac of the United States Naval Observatory since 2003 and powers the Jet Propulsion Laboratory’s online HORIZONS service. Coordinates and velocities are provided for the major planets, the Sun, and Earth’s Moon.

Name:DE405 (May 1997)
Years:1600 through 2200
Planets:Yes
Sun/Moon:Yes
Nutations:Yes
Librations:Yes
Report:Standish (1998) [PDF]
Size:54 MB

The accuracy of this ephemeris is good; the position of the Earth or Mars, for example, should be accurate to within 2 km. But the more recent DE421 ephemeris provides greater accuracy, especially with respect to the Moon, and you should use it instead if you are planning a space mission. For missions to Mercury or Venus, DE423 will be an even better choice.

See DE406 if you are interested in a similar ephemeris for dates far in the past or future, or DE422 if you want high accuracy over a long time period (and have enough disk space).

To compute using this ephemeris in Python, see the jplephem package.

Release History

Release History

1997.1

This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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1997

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
de405-1997.1.tar.gz (54.7 MB) Copy SHA256 Checksum SHA256 Source Jun 11, 2014

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