---
title: "Harmonic constituents"
method: GET
path: "/v1/tides/constituents/"
tags: ["Tides"]
---

# Harmonic constituents

`GET /v1/tides/constituents/`

## Request

- Base URL: `https://thirdtrail.life`
- URL: `https://thirdtrail.life/v1/tides/constituents/`
- Auth: one of:
  - HTTP bearer
  - API key in cookie `sessionid`

The harmonic constants FES2022 holds at a point, for callers running their own tide model. Pro and above.

## Query parameters

- `lat` number, double, required
- `lon` number, double, required

## Response `200`

No response body

---

[API](https://skmtc.dev/thirdtrail/apis/thirdtrail-api.md) · [All operations](https://skmtc.dev/thirdtrail/apis/thirdtrail-api/llms.txt) · [OpenAPI document](https://skmtc.dev/thirdtrail/apis/thirdtrail-api/revisions/742040ec3db6?raw)