> For the complete documentation index, see [llms.txt](https://docs.radiantdrift.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.radiantdrift.com/radiant-drift-api/api-end-points.md). # API End Points We've focussed on documenting the following API end points initially: * [Julian](/julian-day.md) to Date; Date to Julian Day * [Delta T](/delta-t.md) for Date * [Rise/Transit/Set](/rise-transit-set-times.md) (Sun, Moon, Galactic Center) * [Body Position](/body-position.md) (Sun, Moon, Galactic Center, or for an arbitrary right ascension and declination) * [Solar Eclipses](/solar-eclipses.md) * [The Moon](/the-moon.md) (libration and lunar limb profile) * [Geodesic](/geospatial/geodesic.md) - calculate points along the great circle between any two points * [Elevation](/geospatial/elevation.md) - elevation at one or more latitude/longitudes, and elevation profiles along an arbitrary great circle We have a number of other API endpoints just waiting to be documented (you may find them already in our [OpenAPI](/getting-started/openapi-specification.md) spec). You can expect to see the following added soon: * Az/Alt Search - search for a times when a body is at a given azimuth/altitude, or in a certain range of az/alt values * Celestial Events - Moon phases, solstices, equinoxes, lunar eclipses, solar eclipse general circumstances * Meteor Showers * Solar Irradiation - solar intensity, instantaneous irradiation, and daily and monthly clear sky insolation estimates for modules at an arbitrary tilt/azimuth If you have other APIs you'd like to see, let us know. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.radiantdrift.com/radiant-drift-api/api-end-points.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.