# Observer Parameters

Observer Parameters include the current observer's location and other information. The casing of the properties changes from camel case to snake case when doing a GET request.

| **Parameter**         | **Required** | **Description**                                                          | Sample Value |
| --------------------- | :----------: | ------------------------------------------------------------------------ | ------------ |
| longitude             |      Yes     | Longitude of the observer's location, as Float                           | -84.39733    |
| latitude              |      Yes     | Latitude of the observer's location, as Float                            | 33.775867    |
| elevation             |      Yes     | Elevation from the sea in Meters as Number                               | 50           |
| from\_date / fromDate |      Yes     | Starting date as Date. When doing a GET request from\_date must be used. | 2018-12-20   |
| to\_date / toDate     |      Yes     | Ending date as Date. When doing a GET request to\_date must be used.     | 2018-12-22   |
| time                  |      Yes     | Observer's time as Time                                                  | 08:00:00     |

## Time and Timezones

Astronomy API treats the time requested, as the observer's time. It finds the timezone of the user based on the location specified by `longitude` and `latitude`. The returned times will be as same as the time zone requested.


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# Agent Instructions: 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:

```
GET https://docs.astronomyapi.com/requests-and-response/observer-parameters.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.