Error code:   ConfigNamesError
Exception:    FileNotFoundError
Message:      Couldn't find any data file at /src/services/worker/OneOcean/OneAstro_StrongLens. Couldn't find 'OneOcean/OneAstro_StrongLens' on the Hugging Face Hub either: FileNotFoundError: Unable to find 'hf://datasets/OneOcean/OneAstro_StrongLens@b814a46fba42f754c365a8c5a99eff1abc35f8a1/data/lens_systems.csv' with any supported extension ['.csv', '.tsv', '.json', '.jsonl', '.ndjson', '.parquet', '.geoparquet', '.gpq', '.arrow', '.txt', '.conll', '.conllu', '.tar', '.xml', '.hdf5', '.h5', '.eval', '.lance', '.tsfile', '.blp', '.bmp', '.dib', '.bufr', '.cur', '.pcx', '.dcx', '.dds', '.ps', '.eps', '.fit', '.fits', '.fli', '.flc', '.ftc', '.ftu', '.gbr', '.gif', '.grib', '.png', '.apng', '.jp2', '.j2k', '.jpc', '.jpf', '.jpx', '.j2c', '.icns', '.ico', '.im', '.iim', '.tif', '.tiff', '.jfif', '.jpe', '.jpg', '.jpeg', '.mpg', '.mpeg', '.msp', '.pcd', '.pxr', '.pbm', '.pgm', '.ppm', '.pnm', '.psd', '.bw', '.rgb', '.rgba', '.sgi', '.ras', '.tga', '.icb', '.vda', '.vst', '.webp', '.wmf', '.emf', '.xbm', '.xpm', '.BLP', '.BMP', '.DIB', '.BUFR', '.CUR', '.PCX', '.DCX', '.DDS', '.PS', '.EPS', '.FIT', '.FITS', '.FLI', '.FLC', '.FTC', '.FTU', '.GBR', '.GIF', '.GRIB', '.PNG', '.APNG', '.JP2', '.J2K', '.JPC', '.JPF', '.JPX', '.J2C', '.ICNS', '.ICO', '.IM', '.IIM', '.TIF', '.TIFF', '.JFIF', '.JPE', '.JPG', '.JPEG', '.MPG', '.MPEG', '.MSP', '.PCD', '.PXR', '.PBM', '.PGM', '.PPM', '.PNM', '.PSD', '.BW', '.RGB', '.RGBA', '.SGI', '.RAS', '.TGA', '.ICB', '.VDA', '.VST', '.WEBP', '.WMF', '.EMF', '.XBM', '.XPM', '.aiff', '.au', '.avr', '.caf', '.flac', '.htk', '.svx', '.mat4', '.mat5', '.mpc2k', '.ogg', '.paf', '.pvf', '.raw', '.rf64', '.sd2', '.sds', '.ircam', '.voc', '.w64', '.wav', '.nist', '.wavex', '.wve', '.xi', '.mp3', '.opus', '.3gp', '.3g2', '.avi', '.asf', '.flv', '.mp4', '.mov', '.m4v', '.mkv', '.webm', '.f4v', '.wmv', '.wma', '.ogm', '.mxf', '.nut', '.AIFF', '.AU', '.AVR', '.CAF', '.FLAC', '.HTK', '.SVX', '.MAT4', '.MAT5', '.MPC2K', '.OGG', '.PAF', '.PVF', '.RAW', '.RF64', '.SD2', '.SDS', '.IRCAM', '.VOC', '.W64', '.WAV', '.NIST', '.WAVEX', '.WVE', '.XI', '.MP3', '.OPUS', '.3GP', '.3G2', '.AVI', '.ASF', '.FLV', '.MP4', '.MOV', '.M4V', '.MKV', '.WEBM', '.F4V', '.WMV', '.WMA', '.OGM', '.MXF', '.NUT', '.glb', '.ply', '.stl', '.GLB', '.PLY', '.STL', '.pdf', '.PDF', '.nii', '.NII', '.zip', '.idx', '.manifest', '.txn']
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/dataset/config_names.py", line 67, in compute_config_names_response
                  config_names = get_dataset_config_names(
                      path=dataset,
                      token=hf_token,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 161, in get_dataset_config_names
                  dataset_module = dataset_module_factory(
                      path,
                  ...<4 lines>...
                      **download_kwargs,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/load.py", line 1211, in dataset_module_factory
                  raise FileNotFoundError(
                  ...<2 lines>...
                  ) from None
              FileNotFoundError: Couldn't find any data file at /src/services/worker/OneOcean/OneAstro_StrongLens. Couldn't find 'OneOcean/OneAstro_StrongLens' on the Hugging Face Hub either: FileNotFoundError: Unable to find 'hf://datasets/OneOcean/OneAstro_StrongLens@b814a46fba42f754c365a8c5a99eff1abc35f8a1/data/lens_systems.csv' with any supported extension ['.csv', '.tsv', '.json', '.jsonl', '.ndjson', '.parquet', '.geoparquet', '.gpq', '.arrow', '.txt', '.conll', '.conllu', '.tar', '.xml', '.hdf5', '.h5', '.eval', '.lance', '.tsfile', '.blp', '.bmp', '.dib', '.bufr', '.cur', '.pcx', '.dcx', '.dds', '.ps', '.eps', '.fit', '.fits', '.fli', '.flc', '.ftc', '.ftu', '.gbr', '.gif', '.grib', '.png', '.apng', '.jp2', '.j2k', '.jpc', '.jpf', '.jpx', '.j2c', '.icns', '.ico', '.im', '.iim', '.tif', '.tiff', '.jfif', '.jpe', '.jpg', '.jpeg', '.mpg', '.mpeg', '.msp', '.pcd', '.pxr', '.pbm', '.pgm', '.ppm', '.pnm', '.psd', '.bw', '.rgb', '.rgba', '.sgi', '.ras', '.tga', '.icb', '.vda', '.vst', '.webp', '.wmf', '.emf', '.xbm', '.xpm', '.BLP', '.BMP', '.DIB', '.BUFR', '.CUR', '.PCX', '.DCX', '.DDS', '.PS', '.EPS', '.FIT', '.FITS', '.FLI', '.FLC', '.FTC', '.FTU', '.GBR', '.GIF', '.GRIB', '.PNG', '.APNG', '.JP2', '.J2K', '.JPC', '.JPF', '.JPX', '.J2C', '.ICNS', '.ICO', '.IM', '.IIM', '.TIF', '.TIFF', '.JFIF', '.JPE', '.JPG', '.JPEG', '.MPG', '.MPEG', '.MSP', '.PCD', '.PXR', '.PBM', '.PGM', '.PPM', '.PNM', '.PSD', '.BW', '.RGB', '.RGBA', '.SGI', '.RAS', '.TGA', '.ICB', '.VDA', '.VST', '.WEBP', '.WMF', '.EMF', '.XBM', '.XPM', '.aiff', '.au', '.avr', '.caf', '.flac', '.htk', '.svx', '.mat4', '.mat5', '.mpc2k', '.ogg', '.paf', '.pvf', '.raw', '.rf64', '.sd2', '.sds', '.ircam', '.voc', '.w64', '.wav', '.nist', '.wavex', '.wve', '.xi', '.mp3', '.opus', '.3gp', '.3g2', '.avi', '.asf', '.flv', '.mp4', '.mov', '.m4v', '.mkv', '.webm', '.f4v', '.wmv', '.wma', '.ogm', '.mxf', '.nut', '.AIFF', '.AU', '.AVR', '.CAF', '.FLAC', '.HTK', '.SVX', '.MAT4', '.MAT5', '.MPC2K', '.OGG', '.PAF', '.PVF', '.RAW', '.RF64', '.SD2', '.SDS', '.IRCAM', '.VOC', '.W64', '.WAV', '.NIST', '.WAVEX', '.WVE', '.XI', '.MP3', '.OPUS', '.3GP', '.3G2', '.AVI', '.ASF', '.FLV', '.MP4', '.MOV', '.M4V', '.MKV', '.WEBM', '.F4V', '.WMV', '.WMA', '.OGM', '.MXF', '.NUT', '.glb', '.ply', '.stl', '.GLB', '.PLY', '.STL', '.pdf', '.PDF', '.nii', '.NII', '.zip', '.idx', '.manifest', '.txn']

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OneAstronomy Strong Lens Master Catalog (v1)

Unified lens and non-lens system tables compiled for the OneAstronomy strong-lensing workflow (2026).
This Hugging Face release contains master tables only (no image cutouts). Cutouts will be released separately.

What's in this release

File	Rows	Description
`data/lens_systems.csv`	42,834	Unique strong-lens / candidate systems
`data/nonlens_systems.csv`	62,858	Explicit non-lens / contaminant systems
`data/field_dictionary.csv`	—	Column definitions
`data/merge_report.json`	—	Build statistics (2026-08-24)
`SOURCES_AND_CITATIONS.md`	—	Required reading: provenance & papers to cite
`citations.bib`	—	BibTeX for source catalogs
`catalog_provenance.csv`	—	`catalog_id` → citation mapping + record counts

Not included here: source_records.csv (~62 MB row-level provenance) and Legacy Survey cutouts. Ask if you need them, or wait for a follow-up release.

Quick start

from datasets import load_dataset

lens = load_dataset("YOUR_HF_ORG/oneastronomy-strong-lens-master", name="lens", split="train")
nonlens = load_dataset("YOUR_HF_ORG/oneastronomy-strong-lens-master", name="nonlens", split="train")

Or load CSV directly after git clone / download:

import pandas as pd
lens = pd.read_csv("data/lens_systems.csv")
nonlens = pd.read_csv("data/nonlens_systems.csv")

How the catalog was built

Ingest public discovery / spectroscopic / meta catalogs into uniform source_records.
Split sample_class = lens | nonlens (explicit negatives only).
Spatially cluster within lens_type at 2 arcsec (union-find).
Aggregate to one row per uid (SL2026_* lenses, NL2026_* non-lenses).
Drop non-lens records that fall within 2″ of a known lens of the same type.

Full workflow notes: see project DATASET_DOCUMENTATION.md (copied as DATASET_DOCUMENTATION.md in this folder).

Status and confidence tiers (lens table)

Field	Values	Use
`status`	`confirmed` / `likely` / `candidate` / `unknown`	Evidence strength (strongest across sources)
`confidence_tier`	`L2` / `L1` / `L0`	Training / validation split

Approximate counts (lens systems): L0 35,197 · L1 7,213 · L2 424 · confirmed 630.

Important: candidate means a positive selection by at least one catalog (weak evidence), not a non-lens.

Citation policy (please read)

If you use this compilation, please cite:

This dataset (Hugging Face / forthcoming DOI).
Every original catalog that contributed systems you actually use (see SOURCES_AND_CITATIONS.md).
The sources column on each row lists contributing catalog_ids.

This product is a compilation and homogenization. Scientific credit belongs primarily to the discovery papers and survey teams listed in the provenance files.

License

Dataset compilation metadata: CC BY 4.0.
Underlying catalog values remain subject to the licenses / terms of their original publications and archives. Always cite the source papers.

Contact / project

OneAstronomy — strong gravitational lensing workstream (2026).

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