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@@ -32946,3 +32946,21 @@ actions/locomotion_primitives/P31/session_036/raw/sensors/robowrist_imu_left.db
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+ "schema_version": 1,
+ "session": "EgoMotionActions/20260912/P31/20260912_083826_session52",
+ "session_id": "20260912_083826_session52",
+ "primitive": "P31",
+ "batch": "20260912",
+ "participant": "zhangxinxin",
+ "participant_source": "manifest",
+ "device_ids": {
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+  "left": "cc5681142208e29a",
+  "right": "60a6f081bbe60b0d"
+ },
+ "generated_at_utc": "2026-10-14T11:05:11.461988+00:00",
+ "generated_by": "scripts/sync_dataset.py",
+ "time_base": {
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+  "duration_s": 144.025,
+  "mocap_time": "frame_index / rate (Nokov Timestamp column is not a clock; kept as source_timestamp_ms)"
+ },
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+  "model": "offset (median of windows)",
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+  "gyro": "rad/s (65.536 LSB/dps)",
+  "mag": "raw counts, scale unconfirmed (data suggests 163.84 LSB/uT, see knowledge_base sanity doc)",
+  "quaternions": "xyzw, Nokov global"
+ },
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+   "third_person": {
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+    "frames": 4321,
+    "fps": 30.0,
+    "clock": "nokov (frame index)",
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+    "t_end": 144.0
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+  }
+ },
+ "flags": [],
+ "sanity": {
+  "status": {
+   "structure": "WARN",
+   "markers": "WARN",
+   "timing": "WARN"
+  },
+  "verdict": "READY_WITH_WARNINGS",
+  "issues": [
+   "WARN M_BODY_ID",
+   "WARN M_FLOOR_SHIFT",
+   "WARN M_SPIKES",
+   "WARN M_TRACKER_LABELS",
+   "WARN S_INDEX",
+   "WARN S_PARTICIPANT",
+   "WARN T_IMU_PAIR"
+  ]
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+  "generated_by": "scripts/canonicalise_dataset.py",
+  "frame": "Z-up, metres, levelled per Nokov capture block; z = 0 at the Nokov origin; x/y heading as Nokov (global, not per-take)",
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+  "plane_status": "ok",
+  "floor": {
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+   "headtop_p95_mm": 1612.3
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+  "rig_tracker_definition": "e17c9efadb69e7b1/20260912-afternoon/labels-530412/session-6b0182a1806caf3e",
+  "camera_pose_source": "provider T_tracker0_cam",
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+   "tracker0_zup.npz",
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+   "cameras_zup.npz"
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+  "generated_by": "scripts/fit_smplx_dataset.py",
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+  "pelvis": "transl + rest_joints(betas)[0] (transl is NOT the pelvis)",
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+ },
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