juliensimon/satnogs-transmitters

---
license: cc-by-4.0
pretty_name: "SatNOGS Satellite Transmitter Database"
language:
- en
description: "Crowdsourced database of satellite radio transmitters from the SatNOGS network (Libre Space Foundation). Updated weekly."
task_categories:
- tabular-classification
tags:
- space
- satellite
- radio
- transmitter
- satnogs
- frequency
- amateur-radio
- open-data
size_categories:
- 1K<n<10K
---

# SatNOGS Satellite Transmitter Database


Crowdsourced database of satellite radio transmitters from the SatNOGS network,
maintained by the Libre Space Foundation. Currently **4,692** transmitter entries
(2,666 active) across 55 transmission modes.

## Dataset description

SatNOGS (Satellite Networked Open Ground Station) is an open-source project that
maintains a comprehensive database of satellite transmitters, including uplink and
downlink frequencies, modulation modes, baud rates, and operational status. The data
is crowdsourced from a global network of ground station operators and is freely available.

## Schema

| Column | Type | Description |
|--------|------|-------------|
| `uuid` | string | Unique transmitter identifier |
| `description` | string | Transmitter description |
| `alive` | bool | Whether the transmitter is currently active |
| `type` | string | Transmitter type |
| `uplink_low_hz` | float64 | Uplink low frequency (Hz) |
| `uplink_high_hz` | float64 | Uplink high frequency (Hz) |
| `downlink_low_hz` | float64 | Downlink low frequency (Hz) |
| `downlink_high_hz` | float64 | Downlink high frequency (Hz) |
| `downlink_mhz` | float64 | Downlink low frequency (MHz, derived) |
| `mode` | string | Transmission mode (e.g. FM, AFSK, BPSK) |
| `baud` | float64 | Baud rate |
| `norad_id` | int | NORAD catalog ID |
| `status` | string | Operational status |

## Quick stats

- **4,692** transmitter entries
- **2,666** currently active
- **55** transmission modes
- Top modes: FM (1,465), BPSK (642), GMSK (427), FSK (385), CW (376)

## Usage

```python
from datasets import load_dataset

ds = load_dataset("juliensimon/satnogs-transmitters", split="train")
df = ds.to_pandas()

# Active transmitters
active = df[df["alive"] == True]
print(f"{len(active):,} active transmitters")

# UHF band (300-3000 MHz)
uhf = df[(df["downlink_mhz"] >= 300) & (df["downlink_mhz"] <= 3000)]
print(f"{len(uhf):,} UHF transmitters")

# Transmitters per NORAD ID
sats = df.groupby("norad_id").size().sort_values(ascending=False)
print(f"{len(sats):,} unique satellites")
```

## Data source

[SatNOGS DB](https://db.satnogs.org/) by the [Libre Space Foundation](https://libre.space/).
Data is crowdsourced from the global SatNOGS ground station network.

## Update schedule

Weekly (Monday at 18:00 UTC) via [GitHub Actions](https://github.com/juliensimon/space-datasets).

## Related datasets

- [space-track-satcat](https://huggingface.co/datasets/juliensimon/space-track-satcat) -- NORAD Satellite Catalog
- [ucs-satellite-database](https://huggingface.co/datasets/juliensimon/ucs-satellite-database) -- UCS Satellite Database

## Pipeline

Source code: [juliensimon/space-datasets](https://github.com/juliensimon/space-datasets)

## Citation

```bibtex
@dataset{satnogs_transmitters,
author = {Simon, Julien},
title = {SatNOGS Satellite Transmitter Database},
year = {2026},
publisher = {Hugging Face},
url = {https://huggingface.co/datasets/juliensimon/satnogs-transmitters},
note = {Based on SatNOGS DB by Libre Space Foundation}
}
```

## License

[CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)