at.adsb.receiver.sighting

adsb.at

Schema Diff

+48 -87

From

CID
bafyreiduopaxvmp...
Indexed At
2026-05-24 13:06 UTC
View this version

To

CID
bafyreigfusjjsxx...
Indexed At
2026-05-25 20:10 UTC
View this version

Compatibility Analysis

Breaking Changes Detected

38 breaking changes, 26 non-breaking changes.

Breaking Changes (38)
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.aircraft" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.callsign" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.finalAltitudeFt" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.finalGroundSpeedKts" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.finalHeadingDeg" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.finalVerticalRateFpm" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.firstSeen" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.initialAltitudeFt" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.initialGroundSpeedKts" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.initialHeadingDeg" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.initialVerticalRateFpm" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.lastSeen" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.maxRangeNm" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.messageCount" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.positionCount" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.qnhHpa" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.squawk" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.track" }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.aircraft", kind: "prop", name: Some("aircraft") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.callsign", kind: "prop", name: Some("callsign") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.finalAltitudeFt", kind: "prop", name: Some("finalAltitudeFt") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.finalGroundSpeedKts", kind: "prop", name: Some("finalGroundSpeedKts") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.finalHeadingDeg", kind: "prop", name: Some("finalHeadingDeg") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.finalVerticalRateFpm", kind: "prop", name: Some("finalVerticalRateFpm") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.firstSeen", kind: "prop", name: Some("firstSeen") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.initialAltitudeFt", kind: "prop", name: Some("initialAltitudeFt") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.initialGroundSpeedKts", kind: "prop", name: Some("initialGroundSpeedKts") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.initialHeadingDeg", kind: "prop", name: Some("initialHeadingDeg") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.initialVerticalRateFpm", kind: "prop", name: Some("initialVerticalRateFpm") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.lastSeen", kind: "prop", name: Some("lastSeen") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.maxRangeNm", kind: "prop", name: Some("maxRangeNm") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.messageCount", kind: "prop", name: Some("messageCount") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.positionCount", kind: "prop", name: Some("positionCount") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.qnhHpa", kind: "prop", name: Some("qnhHpa") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.squawk", kind: "prop", name: Some("squawk") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.track", kind: "prop", name: Some("track") }
  • ConstraintAdded ConstraintAdded { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex", sort: "minLength", value: "6" }
  • ConstraintAdded ConstraintAdded { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex", sort: "maxLength", value: "6" }
Non-Breaking Changes (26)
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting#manifestEntry" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.manifest" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.manifest:items" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.rawCapture" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.telemetry" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.windowEnd" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.windowStart" }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting#manifestEntry", tgt: "at.adsb.receiver.sighting#manifestEntry.icaoHex", kind: "prop", name: Some("icaoHex") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.manifest", kind: "prop", name: Some("manifest") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.rawCapture", kind: "prop", name: Some("rawCapture") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.telemetry", kind: "prop", name: Some("telemetry") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.windowEnd", kind: "prop", name: Some("windowEnd") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.windowStart", kind: "prop", name: Some("windowStart") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body.manifest", tgt: "at.adsb.receiver.sighting:body.manifest:items", kind: "items", name: None }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.finalHeadingDeg", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.positionCount", sort: "minimum" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.initialHeadingDeg", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.squawk", sort: "minLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.squawk", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.finalGroundSpeedKts", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.messageCount", sort: "minimum" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.initialGroundSpeedKts", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.qnhHpa", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.maxRangeNm", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.callsign", sort: "maxLength" }

Migration Guidance

Removed Elements

  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.aircraft" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.callsign" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.finalAltitudeFt" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.finalGroundSpeedKts" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.finalHeadingDeg" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.finalVerticalRateFpm" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.firstSeen" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.initialAltitudeFt" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.initialGroundSpeedKts" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.initialHeadingDeg" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.initialVerticalRateFpm" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.lastSeen" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.maxRangeNm" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.messageCount" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.positionCount" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.qnhHpa" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.squawk" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.track" }

Added Elements

  • AddedVertex { vertex_id: "at.adsb.receiver.sighting#manifestEntry" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.manifest" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.manifest:items" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.rawCapture" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.telemetry" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.windowEnd" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.windowStart" }

Constraint Changes

  • ConstraintAdded ConstraintAdded { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex", sort: "minLength", value: "6" }
  • ConstraintAdded ConstraintAdded { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex", sort: "maxLength", value: "6" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.qnhHpa", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.initialGroundSpeedKts", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.finalGroundSpeedKts", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.messageCount", sort: "minimum" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.positionCount", sort: "minimum" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.squawk", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.squawk", sort: "minLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.callsign", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.maxRangeNm", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.initialHeadingDeg", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.finalHeadingDeg", sort: "maxLength" }

Additional Notes

  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.aircraft", kind: "prop", name: Some("aircraft") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.callsign", kind: "prop", name: Some("callsign") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.finalAltitudeFt", kind: "prop", name: Some("finalAltitudeFt") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.finalGroundSpeedKts", kind: "prop", name: Some("finalGroundSpeedKts") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.finalHeadingDeg", kind: "prop", name: Some("finalHeadingDeg") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.finalVerticalRateFpm", kind: "prop", name: Some("finalVerticalRateFpm") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.firstSeen", kind: "prop", name: Some("firstSeen") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.initialAltitudeFt", kind: "prop", name: Some("initialAltitudeFt") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.initialGroundSpeedKts", kind: "prop", name: Some("initialGroundSpeedKts") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.initialHeadingDeg", kind: "prop", name: Some("initialHeadingDeg") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.initialVerticalRateFpm", kind: "prop", name: Some("initialVerticalRateFpm") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.lastSeen", kind: "prop", name: Some("lastSeen") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.maxRangeNm", kind: "prop", name: Some("maxRangeNm") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.messageCount", kind: "prop", name: Some("messageCount") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.positionCount", kind: "prop", name: Some("positionCount") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.qnhHpa", kind: "prop", name: Some("qnhHpa") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.squawk", kind: "prop", name: Some("squawk") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.track", kind: "prop", name: Some("track") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting#manifestEntry", tgt: "at.adsb.receiver.sighting#manifestEntry.icaoHex", kind: "prop", name: Some("icaoHex") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.manifest", kind: "prop", name: Some("manifest") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.rawCapture", kind: "prop", name: Some("rawCapture") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.telemetry", kind: "prop", name: Some("telemetry") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.windowEnd", kind: "prop", name: Some("windowEnd") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.windowStart", kind: "prop", name: Some("windowStart") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body.manifest", tgt: "at.adsb.receiver.sighting:body.manifest:items", kind: "items", name: None }
1 1 
{
2 2 
  "id": "at.adsb.receiver.sighting",
3 3 
  "defs": {
4 4 
    "main": {
5 5 
      "key": "tid",
6 6 
      "type": "record",
7 7 
      "record": {
8 8 
        "type": "object",
9 9 
        "required": [
10 - 
          "aircraft",
11 - 
          "firstSeen",
12 - 
          "lastSeen",
10 + 
          "windowStart",
11 + 
          "windowEnd",
12 + 
          "manifest",
13 + 
          "telemetry",
13 14 
          "createdAt"
14 15 
        ],
15 16 
        "properties": {
16 - 
          "track": {
17 + 
          "manifest": {
18 + 
            "type": "array",
19 + 
            "items": {
20 + 
              "ref": "#manifestEntry",
21 + 
              "type": "ref"
22 + 
            },
23 + 
            "maxLength": 1000,
24 + 
            "minLength": 1,
25 + 
            "description": "Lightweight list of all aircraft observed in this window."
26 + 
          },
27 + 
          "createdAt": {
28 + 
            "type": "string",
29 + 
            "format": "datetime"
30 + 
          },
31 + 
          "telemetry": {
17 32 
            "type": "blob",
18 33 
            "accept": [
19 - 
              "application/json",
20 34 
              "application/zstd"
21 35 
            ],
22 36 
            "maxSize": 2000000,
23 - 
            "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."
24 - 
          },
25 - 
          "qnhHpa": {
26 - 
            "type": "string",
27 - 
            "maxLength": 10,
28 - 
            "description": "Altimeter setting (QNH) in hectopascals."
37 + 
            "description": "Zstd-compressed JSON object keyed by ICAO hex, values are arrays of at.adsb.flight.defs#position objects."
29 38 
          },
30 - 
          "squawk": {
31 - 
            "type": "string",
32 - 
            "maxLength": 4,
33 - 
            "minLength": 4,
34 - 
            "description": "Transponder squawk code (e.g. '2636')."
35 - 
          },
36 - 
          "aircraft": {
37 - 
            "ref": "com.atproto.repo.strongRef",
38 - 
            "type": "ref",
39 - 
            "description": "Strong reference to the at.adsb.aircraft.identity record for this aircraft."
40 - 
          },
41 - 
          "callsign": {
42 - 
            "type": "string",
43 - 
            "maxLength": 8,
44 - 
            "description": "Flight callsign as broadcast (e.g. 'UAL123')."
45 - 
          },
46 - 
          "lastSeen": {
39 + 
          "windowEnd": {
47 40 
            "type": "string",
48 41 
            "format": "datetime",
49 - 
            "description": "When this receiver last detected the aircraft."
42 + 
            "description": "End of the observation window (exclusive)."
50 43 
          },
51 - 
          "createdAt": {
52 - 
            "type": "string",
53 - 
            "format": "datetime"
44 + 
          "rawCapture": {
45 + 
            "type": "blob",
46 + 
            "accept": [
47 + 
              "application/vnd.at-adsb.raw-capture+zstd"
48 + 
            ],
49 + 
            "maxSize": 2000000,
50 + 
            "description": "Raw demodulated SDR frames captured during this window, in ATRX envelope format. Optional — strengthens provenance but not required."
54 51 
          },
55 - 
          "firstSeen": {
52 + 
          "windowStart": {
56 53 
            "type": "string",
57 54 
            "format": "datetime",
58 - 
            "description": "When this receiver first detected the aircraft."
59 - 
          },
60 - 
          "maxRangeNm": {
61 - 
            "type": "string",
62 - 
            "maxLength": 20,
63 - 
            "description": "Furthest distance to this aircraft during the sighting, in nautical miles."
64 - 
          },
65 - 
          "messageCount": {
66 - 
            "type": "integer",
67 - 
            "minimum": 0,
68 - 
            "description": "Total messages received from this aircraft."
69 - 
          },
70 - 
          "positionCount": {
71 - 
            "type": "integer",
72 - 
            "minimum": 0,
73 - 
            "description": "Number of position reports received."
74 - 
          },
75 - 
          "finalAltitudeFt": {
76 - 
            "type": "integer",
77 - 
            "description": "Barometric altitude in feet at last detection."
78 - 
          },
79 - 
          "finalHeadingDeg": {
80 - 
            "type": "string",
81 - 
            "maxLength": 10,
82 - 
            "description": "Ground track in degrees at last detection."
83 - 
          },
84 - 
          "initialAltitudeFt": {
85 - 
            "type": "integer",
86 - 
            "description": "Barometric altitude in feet at first detection."
87 - 
          },
88 - 
          "initialHeadingDeg": {
89 - 
            "type": "string",
90 - 
            "maxLength": 10,
91 - 
            "description": "Ground track in degrees at first detection."
92 - 
          },
93 - 
          "finalGroundSpeedKts": {
94 - 
            "type": "string",
95 - 
            "maxLength": 10,
96 - 
            "description": "Ground speed in knots at last detection."
97 - 
          },
98 - 
          "finalVerticalRateFpm": {
99 - 
            "type": "integer",
100 - 
            "description": "Vertical rate in feet per minute at last detection. Negative is descending."
101 - 
          },
102 - 
          "initialGroundSpeedKts": {
103 - 
            "type": "string",
104 - 
            "maxLength": 10,
105 - 
            "description": "Ground speed in knots at first detection."
106 - 
          },
107 - 
          "initialVerticalRateFpm": {
108 - 
            "type": "integer",
109 - 
            "description": "Vertical rate in feet per minute at first detection. Negative is descending."
55 + 
            "description": "Start of the observation window (inclusive)."
110 56 
          }
111 57 
        }
112 58 
      },
113 - 
      "description": "A receiver's sighting of an aircraft transit through its coverage area."
59 + 
      "description": "A receiver's batch sighting covering a configurable observation window."
60 + 
    },
61 + 
    "manifestEntry": {
62 + 
      "type": "object",
63 + 
      "required": [
64 + 
        "icaoHex"
65 + 
      ],
66 + 
      "properties": {
67 + 
        "icaoHex": {
68 + 
          "type": "string",
69 + 
          "maxLength": 6,
70 + 
          "minLength": 6,
71 + 
          "description": "ICAO 24-bit hex address (uppercased)."
72 + 
        }
73 + 
      },
74 + 
      "description": "An aircraft observed in this batch window."
114 75 
    }
115 76 
  },
116 77 
  "$type": "com.atproto.lexicon.schema",
117 78 
  "lexicon": 1,
118 - 
  "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."
79 + 
  "description": "A batch of aircraft observations from a single receiver covering a configurable time window (default 60 seconds). Contains a manifest of observed aircraft and blobbed telemetry data."
119 80 
}

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