On-ingest change feed for GEO slot occupancy, FCC rows, and disputes (Slot Index delta feed, edition 2). coverage is bootstrap when fewer than two registry snapshots are stored, and ingest_deltas once a later snapshot exists. Each change has slug, longitude when available, detectedAt, source vintage, before and after, and provenance. Occupancy changes are enter, leave, authority_flip, and tle_epoch. tle_epoch is a TLE epoch change or a 45 day stale transition on a TLE used for occupancy. Bootstrap does not invent occupancy history. FCC changes are new, lapsed, licensee, status, and as_of when a snapshot does not store parsed workbook rows. When both snapshots store parsed data/ssal.xlsx rows, filing diffs for that interval are new, removed, and changed. removed is a call sign that left the workbook. changed is the same call sign with a different orbital location, satellite name, licensee, administration, service, frequency range, in-orbit date, grant status, or notes. Dispute changes are appear, clear, and kind. ITU filings are not in this product. ITU Space Explorer is the current ITU source. SNS Online shut down in January 2025. TLE longitude is a tracked position, not an FCC or ITU assignment. satellite_relocated rows are not occupancy changes. Optional filters: slug, domain (occupancy, fcc, dispute), since (exclusive ISO-8601 UTC). The public page keeps at most 40 changes and about 48 KB of change JSON. A timestamp with many rows is split. truncated is true when more changes matched. Pass after from nextAfter to continue. since stays an exclusive time filter. nextSince is set only when the page ended on a timestamp boundary.