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docs/en/msg_docs/SatelliteInfo.md
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@@ -1,6 +1,35 @@
---
pageClass: is-wide-page
---
# SatelliteInfo (UORB message)
[source file](https://github.com/PX4/PX4-Autopilot/blob/main/msg/SatelliteInfo.msg)
**TOPICS:** satellite_info
## Fields
| Name | Type | Unit [Frame] | Range/Enum | Description |
| --------- | ----------- | ------------ | ---------- | -------------------------------------------------------------------------------------------------- |
| timestamp | `uint64` | | | time since system start (microseconds) |
| count | `uint8` | | | Number of satellites visible to the receiver |
| svid | `uint8[40]` | | | Space vehicle ID [1..255], see scheme below |
| used | `uint8[40]` | | | 0: Satellite not used, 1: used for navigation |
| elevation | `uint8[40]` | | | Elevation (0: right on top of receiver, 90: on the horizon) of satellite |
| azimuth | `uint8[40]` | | | Direction of satellite, 0: 0 deg, 255: 360 deg. |
| snr | `uint8[40]` | | | dBHz, Signal to noise ratio of satellite C/N0, range 0..99, zero when not tracking this satellite. |
| prn | `uint8[40]` | | | Satellite PRN code assignment, (psuedorandom number SBAS, valid codes are 120-144) |
## Constants
| Name | Type | Value | Description |
| --------------------------------------------------------------- | ------- | ----- | ----------- |
| <a href="#SAT_INFO_MAX_SATELLITES"></a> SAT_INFO_MAX_SATELLITES | `uint8` | 40 |
## Source Message
[Source file (GitHub)](https://github.com/PX4/PX4-Autopilot/blob/main/msg/SatelliteInfo.msg)
::: details Click here to see original file
```c
uint64 timestamp # time since system start (microseconds)
@@ -13,5 +42,6 @@ uint8[40] elevation # Elevation (0: right on top of receiver, 90: on the horizo
uint8[40] azimuth # Direction of satellite, 0: 0 deg, 255: 360 deg.
uint8[40] snr # dBHz, Signal to noise ratio of satellite C/N0, range 0..99, zero when not tracking this satellite.
uint8[40] prn # Satellite PRN code assignment, (psuedorandom number SBAS, valid codes are 120-144)
```
:::