{
  "schemaVersion": "watchtower-subsea-v1",
  "builtAt": "2026-10-15T22:31:43.704690+00:00",
  "layers": {
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      "file": "power.geojson",
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        "construction": 10,
        "proposed": 5
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      "mappedComponents": 2159
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        "abandoned": 8638,
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      "rejected": 0,
      "mappedComponents": 12475
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  },
  "sources": {
    "power": {
      "at": "2026-10-15T22:20:35.578853+00:00",
      "query": "[out:json][timeout:180][maxsize:268435456];(way[power~\"^(cable|line|minor_line)$\"][location=underwater];way[power~\"^(cable|line|minor_line)$\"][submarine=yes];way[\"seamark:cable_submarine:category\"~\"(^|;)(power|transmission)(;|$)\"];);out meta geom;",
      "source": "https://overpass-api.de/api/interpreter",
      "license": "ODbL-1.0",
      "responseSha256": "eb90519dc26553754358388d42ec876b8006e0427e1ae22a799e2b36dfe52b52",
      "sourceSnapshotAt": "2026-10-15T22:18:06Z"
    },
    "pipelines": {
      "at": "2026-10-15T22:23:41.522564+00:00",
      "query": "[out:json][timeout:180][maxsize:268435456];(way[man_made=pipeline][location=underwater];way[man_made=pipeline][submarine=yes];way[\"seamark:type\"=pipeline_submarine];way[\"seamark:pipeline_submarine:category\"];);out meta geom;",
      "source": "https://overpass-api.de/api/interpreter",
      "license": "ODbL-1.0",
      "responseSha256": "6806fae55e6a63f78d17261d8af1f4dac4b84b4bdbada21f2a86399e9fdbffb0",
      "sourceSnapshotAt": "2026-10-15T22:21:06Z"
    },
    "connections": {
      "reviewedOn": "2026-10-15",
      "systems": [
        {
          "id": "faster",
          "name": "FASTER",
          "source": "Submarine Networks \u00b7 FASTER system overview",
          "sourceUrl": "https://www.submarinenetworks.com/en/systems/trans-pacific/faster",
          "status": "Source reports ready for service from June 2016; current live service not independently verified",
          "pairs": [
            [
              "bandon",
              "chikura"
            ],
            [
              "bandon",
              "shima"
            ],
            [
              "bandon",
              "tamsui"
            ]
          ],
          "note": "Selected US-to-Asia same-system connections; the Taiwan branch and Japanese landings do not imply separate direct physical cables."
        },
        {
          "id": "unity",
          "name": "Unity / EAC Pacific",
          "source": "Submarine Networks \u00b7 Unity system overview",
          "sourceUrl": "https://www.submarinenetworks.com/en/systems/trans-pacific/unity",
          "status": "Source reports ready for service April 2010 and upgrade in January 2023; not live telemetry",
          "pairs": [
            [
              "hermosa",
              "chikura"
            ]
          ],
          "note": "Source identifies Hermosa Beach landing and Chikura; Los Angeles backhaul is not drawn as a subsea cable."
        },
        {
          "id": "jupiter",
          "name": "JUPITER",
          "source": "Submarine Networks \u00b7 JUPITER system overview",
          "sourceUrl": "https://www.submarinenetworks.com/en/systems/trans-pacific/jupiter",
          "status": "Source reports main trunk ready May 2021 and Philippines branch July 2022; not live telemetry",
          "pairs": [
            [
              "hermosa",
              "maruyama"
            ],
            [
              "hermosa",
              "shima"
            ],
            [
              "hermosa",
              "daet"
            ]
          ],
          "note": "Same-system connectivity, not branch geometry. Oregon branch is outside this selected endpoint projection."
        },
        {
          "id": "plcn",
          "name": "Pacific Light Cable Network",
          "source": "Submarine Networks \u00b7 PLCN overview; Wikipedia \u00b7 PLCN landing locality",
          "sourceUrl": "https://www.submarinenetworks.com/en/systems/trans-pacific/plcn",
          "additionalSourceUrl": "https://en.wikipedia.org/wiki/Pacific_Light_Cable_Network",
          "status": "Source reports US\u2013Taiwan/Philippines commercial-operation licences granted January 2022; not live telemetry",
          "pairs": [
            [
              "elsegundo",
              "toucheng"
            ],
            [
              "elsegundo",
              "baler"
            ]
          ],
          "note": "Cancelled US\u2013Hong Kong connection is deliberately excluded. Selected authorised connections do not establish current operational status."
        },
        {
          "id": "pc1",
          "name": "Pacific Crossing PC-1",
          "source": "Pacific Crossing \u00b7 operator network description",
          "sourceUrl": "https://www.pc1.com/network-and-services",
          "status": "Operator describes its existing US\u2013Japan ring; current live traffic not measured",
          "pairs": [
            [
              "harbour",
              "ajigaura"
            ],
            [
              "grover",
              "shima"
            ]
          ],
          "note": "Operator-listed ring landing localities; schematic trans-Pacific connections, not exact cable alignments. US/Japan coastal ring sections are not drawn here."
        }
      ],
      "license": "CC-BY-4.0 (Watchtower-authored schematic geometry and factual compilation; linked publisher text/maps are not redistributed)"
    }
  },
  "caveats": [
    "Mapped underwater segments include inland-water crossings; source coverage is incomplete.",
    "Mapped segments are not unique systems and shared OSM nodes do not prove operational flows.",
    "Dashed trans-Pacific links are selected same-system endpoint relationships, not surveyed seabed routes.",
    "Nearby or crossing features are not automatically joined."
  ]
}