{
  "object": "aerodrome_observation",
  "schema": "terminal-weather.observation.preview.v1",
  "availability": "not-generally-available",
  "example": true,
  "station": {
    "icao": "LEMD",
    "name": "Adolfo Suárez Madrid–Barajas Airport",
    "country": "ES"
  },
  "observation": {
    "observed_at": "2026-07-15T14:30:00Z",
    "observed_at_basis": "tac-day-time-group",
    "report_kind": "METAR",
    "flags": {
      "automatic": false,
      "correction": false,
      "nil": false
    },
    "canonical_variants": [
      {
        "canonical_tac": "LEMD 151430Z 23010KT 9999 FEW050 35/09 Q1017 NOSIG",
        "source_path_ids": ["awc", "met-norway", "nws-mirror"]
      }
    ]
  },
  "integrity": {
    "state": "aligned",
    "summary": "All three available paths expose the same nominal observation and canonical TAC content.",
    "available_path_count": 3,
    "expected_path_count": 3,
    "missing_path_ids": [],
    "lagging_path_ids": [],
    "observation_time_aligned": true,
    "canonical_content_aligned": true,
    "variant_count": 1
  },
  "representations": [
    {
      "source_path": "awc",
      "available": true,
      "observed_at": "2026-07-15T14:30:00Z",
      "report_kind": "METAR",
      "raw_tac": "LEMD 151430Z 23010KT 9999 FEW050 35/09 Q1017 NOSIG",
      "fingerprint": {
        "algorithm": "SHA-256",
        "value": "806772ffdbb04b62bf85108641bfcc0ea79072bcdcfb2cb4e46db3e271b7c14b"
      }
    },
    {
      "source_path": "met-norway",
      "available": true,
      "observed_at": "2026-07-15T14:30:00Z",
      "report_kind": "METAR",
      "raw_tac": "LEMD 151430Z 23010KT 9999 FEW050 35/09 Q1017 NOSIG=",
      "fingerprint": {
        "algorithm": "SHA-256",
        "value": "4659cecc6f13478d819fca2e048151f9bb80de37c54f79c226e86b0dfcfb0201"
      }
    },
    {
      "source_path": "nws-mirror",
      "available": true,
      "observed_at": "2026-07-15T14:30:00Z",
      "report_kind": "METAR",
      "raw_tac": "2026/07/15 14:30\nLEMD 151430Z 23010KT 9999 FEW050 35/09 Q1017 NOSIG",
      "fingerprint": {
        "algorithm": "SHA-256",
        "value": "3937c8fa75eebf3fe6b55d1c91a1163f8c1f011569a35f971f45cdf993ce6b56"
      }
    }
  ],
  "source_paths": [
    {
      "id": "awc",
      "name": "Aviation Weather Center data API",
      "timestamp_classification": "provider-receipt-time",
      "timestamps": {
        "observation": "2026-07-15T14:30:00Z",
        "source": "2026-07-15T14:31:04Z",
        "terminal_weather": "2026-07-15T14:31:18Z"
      }
    },
    {
      "id": "met-norway",
      "name": "MET Norway text feed",
      "timestamp_classification": "response-last-modified",
      "timestamps": {
        "observation": "2026-07-15T14:30:00Z",
        "source": "2026-07-15T14:31:00Z",
        "terminal_weather": "2026-07-15T14:31:19Z"
      }
    },
    {
      "id": "nws-mirror",
      "name": "NWS station text mirror",
      "timestamp_classification": "file-clock",
      "timestamps": {
        "observation": "2026-07-15T14:30:00Z",
        "source": "2026-07-15T14:30:00Z",
        "terminal_weather": "2026-07-15T14:31:21Z"
      }
    }
  ]
}