- fall back to a single-day rebuild only on FileNotFoundError; a rate limit, schema change
or truncated download previously took the same path and republished one day as the whole
dataset, which the next run then read back as its base
- move the monotonic download_date assert out of the try so corruption cannot select the
destructive branch
- walk back through releases like the ADS-B reader, so one missing optional asset does not
strand the accumulation
- authenticate release reads and verify downloaded asset size
- read the previous CSV with keep_default_na=False so literal NA values round-trip
- write the download atomically and reject non-zip responses
Generated-by: Claude Opus 5 <noreply@anthropic.com>
- parse the headerless latin1 CCARCS export against its declared column layout
- derive transponder_code_hex from the 24-bit Mode S binary, populated for all 34,913 rows
- expand marks to C- and vintage CF- registrations and drop owner mailing addresses
- mirror the FAA build: same concat-with-latest-release dedup and output conventions
Generated-by: Claude Opus 5 <noreply@anthropic.com>
Ashley Childress