{
  "source": {
    "title": "Rocket Lab / Onboard",
    "key": "rocketlab",
    "project": "Rocketlab Launch 001",
    "chunk_id": 3,
    "chunk_label": "Chunk 2",
    "component_id": 0,
    "stored_model": 0,
    "source_cameras": 425,
    "aligned_cameras": 425,
    "enabled_cameras": 425,
    "mesh_original_vertices": 1009534,
    "mesh_original_faces": 2016770,
    "mesh_display_faces": 44928,
    "tie_points": 425300,
    "tie_points_displayed": 18000,
    "presentation_rotation": [
      [
        -0.9655204827267564,
        0.06312467070769155,
        0.2525578614558195
      ],
      [
        -0.12344481412193331,
        -0.9651648115562304,
        -0.23069084160414366
      ],
      [
        0.22919767734750876,
        -0.2539136910087211,
        0.9396788080066695
      ]
    ],
    "presentation_origin": [
      30.18094825744629,
      8.73930549621582,
      -44.720924377441406
    ],
    "presentation_uniform_scale": 0.032977200813956,
    "orientation_note": "Saved region basis with optional sign flip, for presentation only. Not a measured gravity frame.",
    "notes": "Recovered existing Metashape solution from 425 onboard screen-recording frames. Not a fresh solve of the MOV inside Archive.zip. Cloud/exhaust features may violate the static-scene assumption; no metric flight telemetry.",
    "raw_archive_sha256": {
      "chunk.zip": "01d37c3495f2fb5ee7447c5c76884e23d387e2d9ed9850d0397fa86a74d407e7",
      "frame.zip": "cb4db89287d1946b927ab22ecb2486120e461f21e768ba59da319e6d01265cb0",
      "model.zip": "19afa4603bb95f45dfbc45a0eafec7550c6de1480cae341c878288fdfe8a27ed",
      "point_cloud.zip": "bc389695827e27b8ba4d654e249ce20891c9742a2daac47cda3fae754d037da3"
    }
  },
  "display": {
    "revision": 3,
    "geometry": "Saved display mesh; all vertices and faces preserved. Smooth vertex-normal lighting.",
    "faces": 44928,
    "cameraPoses": 425,
    "cachedFrameSize": [
      192,
      144
    ],
    "sourceTiming": "Unverified; frame order only.",
    "rocket": "Simple shaded body. One constant camera-local mounting transform, estimated once from median camera-local path direction. Illustrative dimensions and mounting.",
    "cameraView": "Camera and body share one pose; all translation and full rotation, including roll, remain rigidly coupled.",
    "interpolation": "Linear position and shortest-path quaternion interpolation. Optional centered three-frame smoothing is applied once to the shared rig.",
    "format": "Interactive only"
  },
  "identified_mission": {
    "name": "PREFIRE & Ice",
    "vehicle": "Electron",
    "flight": 49,
    "date": "2024-06-05",
    "payload": "NASA PREFIRE-2",
    "source": "https://rocketlabcorp.com/missions/launches/prefire-and-ice/",
    "official_webcast": "https://www.youtube.com/watch?v=qBBhzkNzcYQ",
    "evidence": "Mission title visible in original screen recording; source sequence visually matched."
  },
  "event_frames": {
    "first_stage_separation": 383,
    "second_stage_ignition": 393,
    "fully_detached_stage": 396,
    "numbering": "one-based displayed frames",
    "separation_3d_motion": "schematic, not independently reconstructed"
  }
}