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faa-drone-sightings-us

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The dataset generation failed because of a cast error

Error code:   DatasetGenerationCastError
Exception:    DatasetGenerationCastError
Message:      An error occurred while generating the dataset

All the data files must have the same columns, but at some point there are 2 new columns ({'last_year', 'first_year'}) and 1 missing columns ({'city'}).

This happened while the csv dataset builder was generating data using

hf://datasets/himaxym/faa-drone-sightings-us/drone_sightings_by_state.csv (at revision 0c495cec9aa52780d9c9991a103466caef02be34), ['hf://datasets/himaxym/faa-drone-sightings-us@0c495cec9aa52780d9c9991a103466caef02be34/drone_sightings_by_city.csv', 'hf://datasets/himaxym/faa-drone-sightings-us@0c495cec9aa52780d9c9991a103466caef02be34/drone_sightings_by_state.csv', 'hf://datasets/himaxym/faa-drone-sightings-us@0c495cec9aa52780d9c9991a103466caef02be34/drone_sightings_by_year.csv']

Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1837, in _prepare_split_single
                  writer.write_table(table)
                  ~~~~~~~~~~~~~~~~~~^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/arrow_writer.py", line 765, in write_table
                  self._write_table(pa_table, writer_batch_size=writer_batch_size)
                  ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/arrow_writer.py", line 773, in _write_table
                  pa_table = table_cast(pa_table, self._schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2369, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2297, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              state: string
              total: int64
              first_year: int64
              last_year: int64
              -- schema metadata --
              pandas: '{"index_columns": [{"kind": "range", "name": null, "start": 0, "' + 727
              to
              {'city': Value('string'), 'state': Value('string'), 'total': Value('int64')}
              because column names don't match
              
              During handling of the above exception, another exception occurred:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1683, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1839, in _prepare_split_single
                  raise DatasetGenerationCastError.from_cast_error(
                  ...<4 lines>...
                  )
              datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
              
              All the data files must have the same columns, but at some point there are 2 new columns ({'last_year', 'first_year'}) and 1 missing columns ({'city'}).
              
              This happened while the csv dataset builder was generating data using
              
              hf://datasets/himaxym/faa-drone-sightings-us/drone_sightings_by_state.csv (at revision 0c495cec9aa52780d9c9991a103466caef02be34), ['hf://datasets/himaxym/faa-drone-sightings-us@0c495cec9aa52780d9c9991a103466caef02be34/drone_sightings_by_city.csv', 'hf://datasets/himaxym/faa-drone-sightings-us@0c495cec9aa52780d9c9991a103466caef02be34/drone_sightings_by_state.csv', 'hf://datasets/himaxym/faa-drone-sightings-us@0c495cec9aa52780d9c9991a103466caef02be34/drone_sightings_by_year.csv']
              
              Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)

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city string	state string	total int64
New York	New York	584
Chicago	Illinois	506
Houston	Texas	356
Los Angeles	California	346
Atlanta	Georgia	340
Orlando	Florida	328
Miami	Florida	292
Denver	Colorado	245
Washington	District Of Columbia	224
Phoenix	Arizona	217
Las Vegas	Nevada	207
Fort Lauderdale	Florida	184
Charlotte	North Carolina	179
Philadelphia	Pennsylvania	161
Boston	Massachusetts	159
Newark	New Jersey	153
San Diego	California	152
Dallas	Texas	142
Dallas-Fort Worth	Texas	142
San Jose	California	131
Detroit	Michigan	118
Seattle	Washington	115
West Palm Beach	Florida	109
Baltimore	Maryland	108
Nashville	Tennessee	103
San Antonio	Texas	99
Teterboro	New Jersey	99
Van Nuys	California	98
Minneapolis	Minnesota	90
Portland	Oregon	82
San Francisco	California	82
Tampa	Florida	75
Fort Myers	Florida	72
Memphis	Tennessee	70
Santa Ana	California	70
Oakland	California	69
Charleston	South Carolina	67
Columbus	Ohio	64
Jacksonville	Florida	62
Salt Lake City	Utah	62
Sacramento	California	59
Burbank	California	56
Oklahoma City	Oklahoma	52
Raleigh/Durham	North Carolina	51
Farmingdale	New York	49
Indianapolis	Indiana	49
St Louis	Missouri	49
Tulsa	Oklahoma	49
Pittsburgh	Pennsylvania	47
Cleveland	Ohio	46
Milwaukee	Wisconsin	46
Glendale	Arizona	44
Mesa	Arizona	44
New Orleans	Louisiana	44
San Juan	Puerto Rico	44
Fort Worth	Texas	43
Louisville	Kentucky	43
Ontario	California	42
Pensacola	Florida	42
Providence	Rhode Island	41
St Petersburg-Clearwater	Florida	41
Camp Springs	Maryland	40
Daytona Beach	Florida	40
White Plains	New York	40
El Paso	Texas	38
Los Alamitos	California	37
Bedford	Massachusetts	36
Richmond	Virginia	36
Caldwell	New Jersey	35
Long Beach	California	35
Savannah	Georgia	35
Austin	Texas	34
Herndon	Virginia	33
Norfolk	Virginia	33
Colorado Springs	Colorado	32
Covington	Kentucky	32
Greensboro	North Carolina	32
Kansas City	Missouri	32
Albuquerque	New Mexico	31
Mobile	Alabama	30
null	California	1,759
null	Florida	1,588
null	Texas	1,078
null	New York	842
null	Illinois	643
null	Arizona	475
null	Georgia	474
null	New Jersey	446
null	North Carolina	414
null	Pennsylvania	334
null	Massachusetts	300
null	Colorado	300
null	Michigan	272
null	Tennessee	254
null	Virginia	246
null	Nevada	231
null	District Of Columbia	226
null	Washington	218
null	Ohio	211
null	Maryland	187

End of preview.

Drone (UAS) Sightings Reported by Pilots to the FAA, 2019-2026 (by year, state, city)

Aggregated from FAA UAS sighting reports (12,566 reports, 2019 - July 2026), compiled by FlightFinder. Files: sightings by year, by state, and by city. Sightings are climbing again: 1,859 in 2025 (+11% YoY); New York and Chicago top the city list. 2026 is a partial year.

Interactive version with per-record drill-down: https://himaxym.com/safety/drone-sightings

Also published on Zenodo (same data, citable): https://doi.org/10.5281/zenodo.21347864

Source data: U.S. government work (public domain). Compilation: CC BY 4.0 — please attribute "FlightFinder (himaxym.com)". Counts represent FAA reports, not independently verified incidents.

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