at.adsb.receiver.sighting
Schema Diff
+0 -5
Compatibility Analysis
Breaking Changes Detected
2 breaking changes, 1 non-breaking change.
Breaking Changes (2)
- RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.category" }
- RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.category", kind: "prop", name: Some("category") }
Non-Breaking Changes (1)
- ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.category", sort: "maxLength" }
Migration Guidance
Removed Elements
RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.category" }
Constraint Changes
- ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.category", sort: "maxLength" }
Additional Notes
- Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.category", kind: "prop", name: Some("category") }
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{
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"id": "at.adsb.receiver.sighting",
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"defs": {
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"main": {
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"key": "tid",
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"type": "record",
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"record": {
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"type": "object",
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"required": [
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"aircraft",
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"firstSeen",
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"lastSeen",
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"createdAt"
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],
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"properties": {
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"track": {
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"type": "blob",
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"accept": [
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"application/json",
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"application/zstd"
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],
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"maxSize": 2000000,
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"description": "Position track as a JSON array of at.adsb.flight.defs#position objects, optionally compressed. This is the receiver's partial view of the flight."
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},
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"qnhHpa": {
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"type": "string",
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"maxLength": 10,
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"description": "Altimeter setting (QNH) in hectopascals."
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},
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"squawk": {
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"type": "string",
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"maxLength": 4,
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"minLength": 4,
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"description": "Transponder squawk code (e.g. '2636')."
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},
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"aircraft": {
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"ref": "com.atproto.repo.strongRef",
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"type": "ref",
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"description": "Strong reference to the at.adsb.aircraft.identity record for this aircraft."
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},
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"callsign": {
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"type": "string",
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"maxLength": 8,
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"description": "Flight callsign as broadcast (e.g. 'UAL123')."
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},
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"category": {
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"type": "string",
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"maxLength": 4,
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"description": "ADS-B emitter category (e.g. 'A3' for large aircraft)."
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},
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"lastSeen": {
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"type": "string",
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"format": "datetime",
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"description": "When this receiver last detected the aircraft."
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},
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"createdAt": {
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"type": "string",
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"format": "datetime"
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},
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"firstSeen": {
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"type": "string",
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"format": "datetime",
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"description": "When this receiver first detected the aircraft."
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},
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"maxRangeNm": {
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"type": "string",
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"maxLength": 20,
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"description": "Furthest distance to this aircraft during the sighting, in nautical miles."
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},
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"messageCount": {
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"type": "integer",
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"minimum": 0,
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"description": "Total messages received from this aircraft."
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},
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"positionCount": {
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"type": "integer",
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"minimum": 0,
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"description": "Number of position reports received."
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},
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"finalAltitudeFt": {
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"type": "integer",
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"description": "Barometric altitude in feet at last detection."
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},
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"finalHeadingDeg": {
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"type": "string",
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"maxLength": 10,
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"description": "Ground track in degrees at last detection."
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},
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"initialAltitudeFt": {
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"type": "integer",
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"description": "Barometric altitude in feet at first detection."
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},
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"initialHeadingDeg": {
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"type": "string",
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"maxLength": 10,
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"description": "Ground track in degrees at first detection."
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},
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"finalGroundSpeedKts": {
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"type": "string",
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"maxLength": 10,
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"description": "Ground speed in knots at last detection."
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},
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"finalVerticalRateFpm": {
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"type": "integer",
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"description": "Vertical rate in feet per minute at last detection. Negative is descending."
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},
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"initialGroundSpeedKts": {
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"type": "string",
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"maxLength": 10,
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"description": "Ground speed in knots at first detection."
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},
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"initialVerticalRateFpm": {
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"type": "integer",
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"description": "Vertical rate in feet per minute at first detection. Negative is descending."
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}
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}
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},
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"description": "A receiver's sighting of an aircraft transit through its coverage area."
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}
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},
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"$type": "com.atproto.lexicon.schema",
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"lexicon": 1,
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"description": "A single receiver's sighting of an aircraft. Created when the aircraft leaves the receiver's coverage area. Feeder-authoritative — published immediately without waiting for the full flight to complete."
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}