Update AST SpaceMobile fleet: 7 satellites (1 BlueWalker + 6 BlueBird)

README.md

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+---
+license: cc-by-4.0
+pretty_name: "AST SpaceMobile BlueBird Fleet Data"
+language:
+  - en
+description: "Daily health snapshots of the AST SpaceMobile BlueBird direct-to-cell satellite constellation, derived from CelesTrak GP (General Perturbations) data. Tracks the BlueWalker 3 prototype and all product"
+task_categories:
+  - time-series-forecasting
+  - tabular-classification
+tags:
+  - space
+  - ast-spacemobile
+  - bluebird
+  - bluewalker
+  - satellites
+  - orbital-mechanics
+  - tle
+  - constellation
+  - open-data
+  - norad
+  - leo
+  - direct-to-cell
+  - tabular-data
+  - parquet
+size_categories:
+  - n<1K
+configs:
+  - config_name: default
+    data_files:
+      - split: train
+        path: data/daily_snapshots.parquet
+    default: true
+---
+
+# AST SpaceMobile BlueBird Fleet Data
+
+
+<div align="center">
+  <img src="banner.jpg" alt="Orbital sunrise illuminating Earth's atmosphere, seen from the ISS" width="400">
+  <p><em>Credit: NASA</em></p>
+</div>
+
+
+*Part of a [dataset collection](https://huggingface.co/collections/juliensimon/orbital-mechanics-datasets-69c24caca4ab3934c9856994) on Hugging Face.*
+
+## Dataset description
+
+Daily health snapshots of the AST SpaceMobile BlueBird direct-to-cell satellite constellation, derived from CelesTrak GP (General Perturbations) data. Tracks the BlueWalker 3 prototype and all production BlueBird satellites as the constellation is built out.
+
+AST SpaceMobile is developing a unique LEO constellation designed to provide broadband connectivity directly to ordinary unmodified smartphones, without special satellite-phone hardware. The BlueBird satellites use unusually large phased-array antennas (up to 700 m2) to close the link budget with handset-sized antennas on the ground. The BlueWalker 3 prototype launched in 2022, the first five production BlueBirds flew on a Falcon 9 in September 2024, and SpaceMobile-006 followed in 2025.
+
+AST is notable in the Bezos-vs-Musk launch race because the company is a customer of both providers: the initial BlueBird batch flew on SpaceX Falcon 9, and Blue Origin's April 2026 New Glenn mission is launching additional BlueBird satellites. This dataset pairs naturally with juliensimon/blue-origin-launches and juliensimon/spacex-launches to track how AST's deployment splits between the two launch providers, and with juliensimon/starlink-fleet-data to compare direct-to-cell approaches (Starlink DTC vs BlueBird) as that market develops.
+
+This dataset is suitable for **time-series forecasting, tabular classification** tasks.
+
+## Schema
+
+| Column | Type | Description | Sample | Null % |
+|--------|------|-------------|--------|--------|
+| `date` | datetime64[ns] | UTC date of the daily snapshot; one row per date | 2026-04-15 00:00:00 | 0.0% |
+| `total_count` | int64 | Total AST SpaceMobile objects tracked on this date (BlueWalker + BlueBird) | 7 | 0.0% |
+| `bluewalker_count` | int64 | Number of BlueWalker prototype satellites (BlueWalker-3, launched 2022) | 1 | 0.0% |
+| `bluebird_count` | int64 | Number of production BlueBird satellites (SpaceMobile-001..00N) | 6 | 0.0% |
+| `operational_count` | int64 | Satellites within 100 km of the 700 km target operational altitude | 0 | 0.0% |
+| `mean_altitude_km` | float64 | Mean altitude of the fleet, kilometres above Earth's surface | 499.37 | 0.0% |
+| `mean_inclination_deg` | float64 | Mean orbital inclination of the fleet in degrees | 53.0131 | 0.0% |
+
+## Quick stats
+
+- **7** AST SpaceMobile satellites (1 BlueWalker + 6 BlueBird)
+- **0** near 700 km target operational altitude
+- **1** daily snapshot rows (2026-04-15 to 2026-04-15)
+- Customer of both SpaceX and Blue Origin — pair with [blue-origin-launches](https://huggingface.co/datasets/juliensimon/blue-origin-launches) and [spacex-launches](https://huggingface.co/datasets/juliensimon/spacex-launches)
+
+## Usage
+
+```python
+from datasets import load_dataset
+
+ds = load_dataset("juliensimon/ast-spacemobile-fleet-data", split="train")
+df = ds.to_pandas()
+```
+
+```python
+from datasets import load_dataset
+
+ast = load_dataset("juliensimon/ast-spacemobile-fleet-data", split="train").to_pandas()
+
+# Fleet growth over time
+print(ast[["date", "bluewalker_count", "bluebird_count"]].tail(10))
+```
+
+## Data source
+
+https://celestrak.org/
+
+## Update schedule
+
+Daily at 09:15 UTC via GitHub Actions
+
+## Related datasets
+
+- [juliensimon/blue-origin-launches](https://huggingface.co/datasets/juliensimon/blue-origin-launches)
+
+- [juliensimon/spacex-launches](https://huggingface.co/datasets/juliensimon/spacex-launches)
+
+- [juliensimon/starlink-fleet-data](https://huggingface.co/datasets/juliensimon/starlink-fleet-data)
+
+- [juliensimon/kuiper-fleet-data](https://huggingface.co/datasets/juliensimon/kuiper-fleet-data)
+
+- [juliensimon/constellation-census](https://huggingface.co/datasets/juliensimon/constellation-census)
+
+> If you find this dataset useful, please consider [giving it a like](https://huggingface.co/datasets/juliensimon/ast-spacemobile-fleet-data) on Hugging Face. It helps others discover it.
+
+## About the author
+
+Created by [Julien Simon](https://julien.org) — AI Operating Partner at Fortino Capital. Part of the [Space Datasets](https://julien.org/datasets) collection.
+
+## Citation
+
+```bibtex
+@dataset{ast_spacemobile_fleet_data,
+  title = {AST SpaceMobile BlueBird Fleet Data},
+  author = {juliensimon},
+  year = {2026},
+  url = {https://huggingface.co/datasets/juliensimon/ast-spacemobile-fleet-data},
+  publisher = {Hugging Face}
+}
+```
+
+## License
+
+[CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)

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