> For the complete documentation index, see [llms.txt](https://doc.duaer.com/zh/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.duaer.com/zh/getting-started/live-flights.md).

# 在 Duaer 里查实时航班

在 Duaer 里：OpenSky Network：某区域上空当前的飞机，含呼号、位置、高度与速度。一次成功查询用 1 额度。
## 能拿到什么

Duaer 数据市场里的「实时航班」：OpenSky Network：某区域上空当前的飞机，含呼号、位置、高度与速度。查到结果时用 1 额度，结果交给数字组织的下一个节点。

从节点创建器选 Duaer 数据 → 实时航班，或打开 [数据市场](/zh/getting-started/data-market.md)。相关：[天气预报](/zh/getting-started/weather.md)、[附近地点](/zh/getting-started/places-nearby.md)。

## 适合做什么

- 统计此刻瑞士上空的飞机数量。
- 查找英国上空的英航航班。

## 在画布里检索

1. 打开节点创建器，选 Duaer 数据 → Live flights。
2. 填 Area，格式为 南,西,北,东（如 45.8,5.9,47.8,10.5）；Callsign（如 BAW）可选。
3. Limit 默认 10，最大 20。执行。

查到结果才扣 1 额度；没有结果、输入有误或上游失败都不扣。

## 用 API 调用

- GET https://api.duaer.com/v1/data/live-flights?area=45.8,5.9,47.8,10.5
- Authorization: Bearer <Duaer key>

下方是与数据市场「复制技能」相同的英文技能，含参数、示例与返回字段。

## 调用技能（英文）

与数据市场「复制技能」一致。

```
---
name: duaer-live-flights
description: >-
  Duaer Live flights. OpenSky Network: aircraft in the air now over an area, with callsign, position, altitude, and speed.
  One successful search uses 1 Duaer credit.
---

# Duaer Live flights

Duaer Live flights reads OpenSky Network state vectors for a box of up to 30 degrees on each side. Filter by callsign to follow one airline.

## When to use

- Count aircraft over Switzerland right now.
- Find British Airways flights over the UK.

## When not to use

- Satellites and space weather. Use https://skills.duaer.com/space-weather.md.
- Weather at an airport. Use https://skills.duaer.com/weather.md.

## Call

`GET https://api.duaer.com/v1/data/live-flights?area=45.8,5.9,47.8,10.5`

Header: `Authorization: Bearer <Duaer key>`

Use an account key or a model API key.

Get a Duaer key: https://skills.duaer.com/keys.md

## Parameters

Provide `area`.

- `area` — south,west,north,east in degrees, such as 45.8,5.9,47.8,10.5 for Switzerland.
- `callsign` — Optional. Callsign or its start, such as BAW for British Airways.
- `limit` — Optional. Rows to return, from 1 to 20. Default 10.

## Examples

- `GET https://api.duaer.com/v1/data/live-flights?area=45.8,5.9,47.8,10.5` — aircraft over Switzerland.
- `GET https://api.duaer.com/v1/data/live-flights?area=49,-6,56,2&callsign=BAW` — British Airways flights over the UK.

## Result

The response is `{ "items": [...] }`. Each item has `source`, `title`, `url`, and `summary`, plus:

- `icao24`, `callsign`, `originCountry` — aircraft address, flight, and registration country.
- `latitude`, `longitude`, `altitudeM`, `onGround` — position.
- `speedKmh`, `headingDeg`, `verticalRateMs` — motion.
- `squawk`, `lastContact` — transponder code and last signal time.

Fields without a value are left out.

## Credits

A search that returns at least one row uses 1 credit.
An empty search, a search that finds nothing, or a failed search uses 0.
Wrong input returns 400 with a message and uses 0.
No remaining credits returns 402 and does not search.
A missing key returns 401.

## Related

- https://skills.duaer.com/weather.md — Duaer Weather forecast
- https://skills.duaer.com/places-nearby.md — Duaer Places nearby

```
## Questions

### Duaer 的实时航班检索扣多少额度？

查到结果时扣 1 额度；没有结果或出错不扣。

### Duaer 实时航班能看到所有飞机吗？

只能看到 OpenSky 接收站收到信号的飞机；海洋与偏远地区覆盖较少。

## 相关

- [在 Duaer 里查天气预报](https://doc.duaer.com/zh/getting-started/weather.md)
- [在 Duaer 里查附近地点](https://doc.duaer.com/zh/getting-started/places-nearby.md)