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    "missing": [
      "orekit_jpype not importable (ModuleNotFoundError: No module named 'orekit_jpype'); pip install 'satnogs-optical-network[od]'",
      "no JVM (JAVA_HOME unset and no 'java' on PATH)",
      "orekit-data not found (set OREKIT_DATA_PATH to the orekit-data zip or directory, or put orekit-data.zip in the working directory)"
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    "note": "Orekit is the conformance authority (ADR 0014). SKIPPED means it did not run here; it does not mean the file conforms. NOT_RUN means nothing was checked at all, which is not a pass either. This deployment does not carry a JVM, by decision (network #11): the gate runs on bench machines that install the optional [od] extra, not on the deployed service.",
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        "excluded_measurements": 5,
        "kind": "contradictory",
        "measurements": [
          "35eab34b-719b-595d-b148-890db2534932",
          "4f4b7e6e-a08c-5550-9882-4bc11e2b041e",
          "7dd916d2-97a3-5690-95e4-d829d5324a35",
          "a7a89891-ce13-536c-8203-b90b52ee7940",
          "cfe0ab7b-ff57-53b4-bd3a-431dbc77c7ef"
        ],
        "object_norad_id": 18123,
        "positions": [
          "172.999257 62.446863",
          "174.104546 62.614329",
          "174.886620 62.726885",
          "176.583013 62.950861",
          "177.743752 63.091235"
        ],
        "published_observations": 0,
        "scope": "sibling-tracks",
        "sibling_track_ids": [
          73489,
          73490,
          73491,
          73492,
          73493
        ],
        "station_id": 11,
        "track_id": 73489
      },
      {
        "epoch": "2026-09-14T04:04:55.906087",
        "excluded_measurements": 2,
        "kind": "contradictory",
        "measurements": [
          "5cf9ec97-b395-5c7d-92bc-784d71f3cc70",
          "ae31e4a3-ecfe-5284-8eea-7618d73ea3fb"
        ],
        "object_norad_id": 65054,
        "positions": [
          "182.671707 53.184854",
          "184.357064 53.504607"
        ],
        "published_observations": 0,
        "scope": "sibling-tracks",
        "sibling_track_ids": [
          73497,
          73498
        ],
        "station_id": 11,
        "track_id": 73497
      }
    ],
    "detail_omitted": 0,
    "epochs": 31,
    "measurements_excluded": 71,
    "note": "one epoch stated twice costs its own measurements, never the session: a repeated epoch is published once, a contradicted one is published not at all, and every excluded row is still in the parquet archive. Counted over tracks with a correlated object, which are the only tracks a TDM is written for. See docs/decisions/0004-duplicate-epochs.md",
    "tracks": 28,
    "tracks_left_without_observations": 36
  },
  "generated_at": "2026-09-22T22:53:07.124463Z",
  "generation_id": "8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007",
  "generator": "satnogs_optical_network.products",
  "iod": {
    "11": {
      "identified_lines": 85845,
      "identified_tracks": 558,
      "lines": 95238,
      "skipped": 0,
      "skipped_reasons": [],
      "unk_lines": 9393,
      "unk_tracks": 181,
      "wide_id_tracks": 0
    },
    "15": {
      "identified_lines": 113,
      "identified_tracks": 2,
      "lines": 115,
      "skipped": 0,
      "skipped_reasons": [],
      "unk_lines": 2,
      "unk_tracks": 2,
      "wide_id_tracks": 0
    },
    "7": {
      "identified_lines": 5870,
      "identified_tracks": 96,
      "lines": 6273,
      "skipped": 0,
      "skipped_reasons": [],
      "unk_lines": 403,
      "unk_tracks": 23,
      "wide_id_tracks": 0
    }
  },
  "layout": {
    "generation_dir": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007",
    "measurements": "measurements.parquet",
    "note": "Resolve products through this manifest. Retained generations must not be combined with a recursive Parquet wildcard.",
    "session_dir": "session_date=2026-09-13",
    "stations": "stations",
    "tracks": "tracks.parquet"
  },
  "metrics": {
    "measurements": 101803,
    "objects": 423,
    "stations": 3,
    "tracks": 903,
    "unk_tracks": 406
  },
  "metrics_basis": "as-ingested",
  "packaging": {
    "note": "TDM file count is a packaging artifact, not a headline metric: it both overstates the claim to experts and understates the data volume (ADR 0010). tdm_observations is the count actually read back out of the published station-night TDMs and checked against the measurement rows; it is the number to compare a published file against. tdm_tracks is the number of segments across them.",
    "tdm_files": 3,
    "tdm_observations": 91757,
    "tdm_observations_expected": 91757,
    "tdm_observations_verified": true,
    "tdm_tracks": 620
  },
  "per_station": [
    {
      "epoch_collisions": 0,
      "iod": {
        "identified_lines": 5870,
        "identified_tracks": 96,
        "lines": 6273,
        "skipped": 0,
        "skipped_reasons": [],
        "unk_lines": 403,
        "unk_tracks": 23,
        "wide_id_tracks": 0
      },
      "iod_station_code": "7",
      "measurements": 6275,
      "name": "Drachten",
      "objects": 56,
      "station_id": 7,
      "tdm_tracks": 96,
      "tracks": 120,
      "unk_tracks": 59
    },
    {
      "epoch_collisions": 31,
      "iod": {
        "identified_lines": 85845,
        "identified_tracks": 558,
        "lines": 95238,
        "skipped": 0,
        "skipped_reasons": [],
        "unk_lines": 9393,
        "unk_tracks": 181,
        "wide_id_tracks": 0
      },
      "iod_station_code": "11",
      "measurements": 95413,
      "name": "dwingeloo",
      "objects": 384,
      "station_id": 11,
      "tdm_tracks": 558,
      "tracks": 779,
      "unk_tracks": 345
    },
    {
      "epoch_collisions": 0,
      "iod": {
        "identified_lines": 113,
        "identified_tracks": 2,
        "lines": 115,
        "skipped": 0,
        "skipped_reasons": [],
        "unk_lines": 2,
        "unk_tracks": 2,
        "wide_id_tracks": 0
      },
      "iod_station_code": "15",
      "measurements": 115,
      "name": "Satnogs-optical",
      "objects": 2,
      "station_id": 15,
      "tdm_tracks": 2,
      "tracks": 4,
      "unk_tracks": 2
    }
  ],
  "products": [
    {
      "bytes": 9541,
      "conformance": null,
      "kind": "characterisation-station",
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/stations/station-11.json",
      "scope": "station-night",
      "scope_key": "11-2026-09-13",
      "sha256": "b65017e7bec6d1fb19664c67d7b3d28bbce4f7dfb9945af6516a5edfe6c714ed"
    },
    {
      "bytes": 9333,
      "conformance": null,
      "kind": "characterisation-station",
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/stations/station-15.json",
      "scope": "station-night",
      "scope_key": "15-2026-09-13",
      "sha256": "6a3038383c10f500ac9cbf3a3c1bbda3fa3d19f5dccce7e6303e003e49e72105"
    },
    {
      "bytes": 9651,
      "conformance": null,
      "kind": "characterisation-station",
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/stations/station-7.json",
      "scope": "station-night",
      "scope_key": "7-2026-09-13",
      "sha256": "1a76f562af78cf3c2b43618b7458d53603114d6956ec73f2e70f95129b6066cb"
    },
    {
      "bytes": 6380946,
      "conformance": null,
      "kind": "iod-station-night",
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/iod/station-11-2026-09-13.iod",
      "scope": "station-night",
      "scope_key": "11-2026-09-13",
      "sha256": "d4e3d1d86b4450a6c4080128593b871cffc191849c8d11d94dbc648bc65fb0a0"
    },
    {
      "bytes": 7705,
      "conformance": null,
      "kind": "iod-station-night",
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/iod/station-15-2026-09-13.iod",
      "scope": "station-night",
      "scope_key": "15-2026-09-13",
      "sha256": "7efa9b2223cf47185ff6d0319e2dfcf1a86032df04290bc7bf7bd874674e9fb5"
    },
    {
      "bytes": 420291,
      "conformance": null,
      "kind": "iod-station-night",
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/iod/station-7-2026-09-13.iod",
      "scope": "station-night",
      "scope_key": "7-2026-09-13",
      "sha256": "1a3e1b6b7d40e5c538a0e09f53ebe3b3089e7c3e587fd7bed90013e724441bf6"
    },
    {
      "bytes": 10658075,
      "conformance": null,
      "kind": "parquet-session",
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/measurements.parquet",
      "scope": "session",
      "scope_key": "2026-09-13",
      "sha256": "4ad6c816253e13ac63c600f277649437b7e0ade75c298e1749be8347d4effc6a"
    },
    {
      "bytes": 75216,
      "conformance": null,
      "kind": "parquet-tracks",
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/tracks.parquet",
      "scope": "session",
      "scope_key": "2026-09-13",
      "sha256": "a8d9c9612a0b59dc657a5a267cc98335213501ff3ec9f4c779ee1996cee35cee"
    },
    {
      "bytes": 10127144,
      "conformance": "SKIPPED: Orekit conformance NOT VERIFIED for station-11-2026-09-13.tdm: orekit_jpype not importable (ModuleNotFoundError: No module named 'orekit_jpype'); pip install 'satnogs-optical-network[od]'; no JVM (JAVA_HOME unset and no 'java' on PATH); orekit-data not found (set OREKIT_DATA_PATH to the orekit-data zip or directory, or put orekit-data.zip in the working directory). Offline structural check: clean.",
      "kind": "tdm-station-night",
      "observations": 85774,
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/tdm/station-11-2026-09-13.tdm",
      "scope": "station-night",
      "scope_key": "11-2026-09-13",
      "sha256": "4114b87fbef370b3ee0107f844ba4ee9356104beb7b10fd8a9e13ef488c061c5"
    },
    {
      "bytes": 15382,
      "conformance": "SKIPPED: Orekit conformance NOT VERIFIED for station-15-2026-09-13.tdm: orekit_jpype not importable (ModuleNotFoundError: No module named 'orekit_jpype'); pip install 'satnogs-optical-network[od]'; no JVM (JAVA_HOME unset and no 'java' on PATH); orekit-data not found (set OREKIT_DATA_PATH to the orekit-data zip or directory, or put orekit-data.zip in the working directory). Offline structural check: clean.",
      "kind": "tdm-station-night",
      "observations": 113,
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/tdm/station-15-2026-09-13.tdm",
      "scope": "station-night",
      "scope_key": "15-2026-09-13",
      "sha256": "ca2ed41a59725859989e688ad062e859ce0f8f9678a004b124aa938cb75cdb1b"
    },
    {
      "bytes": 767112,
      "conformance": "SKIPPED: Orekit conformance NOT VERIFIED for station-7-2026-09-13.tdm: orekit_jpype not importable (ModuleNotFoundError: No module named 'orekit_jpype'); pip install 'satnogs-optical-network[od]'; no JVM (JAVA_HOME unset and no 'java' on PATH); orekit-data not found (set OREKIT_DATA_PATH to the orekit-data zip or directory, or put orekit-data.zip in the working directory). Offline structural check: clean.",
      "kind": "tdm-station-night",
      "observations": 5870,
      "path": "session_date=2026-09-13/generations/8a050552b96d3769685faabbc8892a07ab0ed34b149878bcd5bf07eb5454b007/tdm/station-7-2026-09-13.tdm",
      "scope": "station-night",
      "scope_key": "7-2026-09-13",
      "sha256": "7696b482032a17e70849a1a9de83daf316995c25b1ecc94b52ef62c9d78ffc32"
    }
  ],
  "quarantined_excluded": 0,
  "station": [
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    11,
    15
  ],
  "stations": [
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    11,
    15
  ],
  "tdm_excluded_epoch_collisions": 71,
  "tdm_skipped_no_observations": 36,
  "tdm_skipped_unk": 247
}