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Astro-satpass-0.047_01
River stage one • 7 direct dependents • 8 total dependents

Changes for version 0.047_01 - 2012-02-26

  • In Astro::Coord::ECI:
  • Add 'station' attribute, as origin of observer-centered coordinate systems. If azel() is called with the invocant as the only Astro::Coord::ECI argument, it returns the coordinates of the invocant relative to the 'station' attribute.
  • Factor out the Cartesian portion of the azel() method, and add methods neu() and enu(), to provide local Cartesian coordinates relative to the 'station' attribute.
  • Add method equatorial_apparent(), to calculate apparent equatorial coordinates as seen from the location in the 'station' attribute.
  • Work on velocity transformations from eci() to ecef(), neu(), enu(), azel(), and equatorial(). All these seem sane to me, though I still have no worked examples to test against. I intend the use of the 'station' attribute to be the preferred way to get observer-relative coordinates. I would like to eventually deprecate $station->azel( $body ) and friends, as well as the practice of passing an explicit station to the pass() and flare() methods, but whether this actually happens is another question.

Documentation

satpass
Predict satellite passes over an observer.
Astro::Coord::ECI::OVERVIEW
Overview of Astro::Coord::ECI and friends

Modules

Astro::Coord::ECI
Manipulate geocentric coordinates
Astro::Coord::ECI::Moon
Compute the position of the Moon.
Astro::Coord::ECI::Star
Compute the position of a star.
Astro::Coord::ECI::Sun
Compute the position of the Sun.
Astro::Coord::ECI::TLE
Compute satellite locations using NORAD orbit propagation models
Astro::Coord::ECI::TLE::Iridium
Compute behavior of Iridium satellites
Astro::Coord::ECI::TLE::Set
Represent a set of data for the same ID.
Astro::Coord::ECI::Utils
Utility routines for astronomical calculations

Examples

Other files