# api.radiantdrift.com

## api.radiantdrift.com

- [Radiant Drift API](https://docs.radiantdrift.com/radiant-drift-api.md): Documentation for api.radiantdrift.com
- [Subscription Plans](https://docs.radiantdrift.com/radiant-drift-api/subscription-plans.md): Details of our subscription plans
- [Educational Use and Research](https://docs.radiantdrift.com/radiant-drift-api/educational-use-and-research.md): Access to premium APIs for educational and research purposes
- [API End Points](https://docs.radiantdrift.com/radiant-drift-api/api-end-points.md): What's available and what's coming
- [Getting Started](https://docs.radiantdrift.com/getting-started.md): Creating an account and API Key
- [About your account](https://docs.radiantdrift.com/getting-started/about-your-account.md): Managing your user account
- [Request Authentication](https://docs.radiantdrift.com/getting-started/request-authentication.md): How to authenticate your API requests
- [Managing API Keys](https://docs.radiantdrift.com/getting-started/managing-api-keys.md): How to manage API keys via the developer console
- [OpenAPI Specification](https://docs.radiantdrift.com/getting-started/openapi-specification.md)
- [Date/Time Format](https://docs.radiantdrift.com/getting-started/date-time-format.md)
- [Validity, Accuracy, and Precision](https://docs.radiantdrift.com/getting-started/validity-accuracy-and-precision.md)
- [Usage Guidelines](https://docs.radiantdrift.com/usage-guidelines.md): Guidelines on use of Radiant Drift APIs
- [Acceptable Use Policy](https://docs.radiantdrift.com/usage-guidelines/acceptable-use-policy.md): How to use our APIs
- [Usage Credits and Call Costs](https://docs.radiantdrift.com/usage-guidelines/usage-credits-and-call-costs.md): How we calculate usage credits
- [Attribution](https://docs.radiantdrift.com/usage-guidelines/attribution.md): Attribution display requirements
- [Rate Limits](https://docs.radiantdrift.com/usage-guidelines/rate-limits.md): Standard and Premium Rate Limits
- [Julian Day](https://docs.radiantdrift.com/julian-day.md): Convert a Gregorian calendar date/time to a Julian Day or vice versa.
- [Delta-T](https://docs.radiantdrift.com/delta-t.md): The Delta-T end point obtains an estimated Delta-T value in seconds for the given date.
- [Rise, Transit, Set Times](https://docs.radiantdrift.com/rise-transit-set-times.md): This end point calculates rising, meridian transit and setting times for the given body and observer location from start to end dates.
- [Body Position](https://docs.radiantdrift.com/body-position.md): Calculating the position of the Sun, Moon, and stars
- [Request Parameters](https://docs.radiantdrift.com/body-position/request-parameters.md): URL structure and parameters
- [Position at a given time](https://docs.radiantdrift.com/body-position/position-at-a-given-time.md)
- [Positions for a time range](https://docs.radiantdrift.com/body-position/positions-for-a-time-range.md): Get body positions at intervals between two dates
- [Observer location](https://docs.radiantdrift.com/body-position/observer-location.md): Calculating local horizontal coordinates with respect to an observer
- [Solar Eclipses](https://docs.radiantdrift.com/solar-eclipses.md): Local circumstances, Besselian elements, eclipse paths
- [Embeddable Web Widgets](https://docs.radiantdrift.com/solar-eclipses/embeddable-web-widgets.md): Eclipse maps and simulators
- [Eclipse Map](https://docs.radiantdrift.com/solar-eclipses/embeddable-web-widgets/eclipse-map.md): Interactive, customizable eclipse maps for your website
- [Eclipse Simulator](https://docs.radiantdrift.com/solar-eclipses/embeddable-web-widgets/eclipse-simulator.md): A customizable, interactive eclipse simulator for your website
- [Besselian Elements](https://docs.radiantdrift.com/solar-eclipses/besselian-elements.md): Returns Besselian elements as raw data or a structured response
- [Local Circumstances](https://docs.radiantdrift.com/solar-eclipses/local-circumstances.md): Calculate the local circumstances of an eclipse for an observer
- [Eclipse Paths](https://docs.radiantdrift.com/solar-eclipses/eclipse-paths.md): Eclipse paths suitable for use on digital maps
- [Five Millennium Canon of Solar Eclipses](https://docs.radiantdrift.com/solar-eclipses/five-millennium-canon-of-solar-eclipses.md): Key data from NASA's solar eclipse catalog queryable as JSON
- [The Moon](https://docs.radiantdrift.com/the-moon.md): Lunar libration and lunar limb profiles
- [Lunar Libration](https://docs.radiantdrift.com/the-moon/lunar-libration.md): Geocentric and Topocentric libration
- [Lunar Limb Profile](https://docs.radiantdrift.com/the-moon/lunar-limb-profile.md): Lunar limb profile data for solar eclipse calculations
- [Geospatial](https://docs.radiantdrift.com/geospatial.md): Details of our geospatial API end points
- [Geodesic](https://docs.radiantdrift.com/geospatial/geodesic.md): Calculate points along an arbitrary great circle
- [Elevation](https://docs.radiantdrift.com/geospatial/elevation.md): Determine the elevation above sea level for given coordinates
- [Reference](https://docs.radiantdrift.com/reference.md)
- [Definitions](https://docs.radiantdrift.com/reference/definitions.md): Definitions of astronomical values returned in response fields
- [Errors](https://docs.radiantdrift.com/reference/errors.md)