{
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 "survey": "Black Cat Bore Magnetotelluric Survey 2022 (Geological Survey of Queensland)",
 "survey_id": "black-cat-bore-2022",
 "country": "Australia",
 "organisation": "Geological Survey of Queensland",
 "location": {
  "lat": -19.548722,
  "lon": 140.139583
 },
 "data": {
  "type": "AMT",
  "n_periods": 100,
  "period_min_s": 0.0001,
  "period_max_s": 2912.71072
 },
 "diagnostics": {
  "median_relative_error": 0.001,
  "remote_reference": true,
  "tipper_available": true,
  "completeness_smoothness_diagnostic": {
   "value": 4.9,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
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  "classification": "1-D",
  "skew_beta_median_deg": 0.6,
  "pct_periods_3d": 40,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
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  "algorithm": null,
  "remote_reference": true,
  "remote_site": "BC061",
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  "note": "PROJECT NAME: Red Metal_Q2_2022\nUNIQUE ID: {47907f21-3141-408f-9175-f3b0e7a31a57}\nPROCESS DATE: 2022-04-10 06:09\nDURATION: 21 h 58 m 10 s \nDECLINATION: 6°\nCOORDINATES: -19° 32' 55.4\", 140° 8' 22.5\"\nGPS (MIN - MAX): 8 - 12\nTEMPERATURE (MIN - MAX): 29° - 60°\nCOMB FILTER: 50HZ\nFINE ROBUST: ENABLED\nROBUST ALGORITHM: Multiple Coherence, RATIO: 0.25, ATTACK: 0.75\nEDITING WORKBENCH\nTOTOAL REJECTED CROSSPOWERS: 41.8545%\nROBUST ALGORITHM: Multiple Coherence, ATTACK: 0.85, RATIO: 35% \nSTATIONS\nELECTRICS\nRECORDING ID: 10195_2022-04-07-234549\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: BC060\nOPERATOR: PW\nAZIMUTH: 0\nEX\nTAG: E1\nLENGTH: 80 [m]\nAC: 0.703506 [V]\nDC: -0.0217438 [V]\nNEGATIVE RES: 893.684 [Ω]\nPOSITIVE RES: 622.795 [Ω]\nSATURATION: 0%\nMIN VALUE: -0.321536 [V]\nMAX VALUE: 0.38197 [V]\nEY\nTAG: E2\nLENGTH: 80 [m]\nAC: 0.7876 [V]\nDC: -0.0157928 [V]\nNEGATIVE RES: 625.865 [Ω]\nPOSITIVE RES: 739.802 [Ω]\nSATURATION: 0.00524719%\nMIN VALUE: -0.1626 [V]\nMAX VALUE: 0.625 [V]\nMAGNETICS\nRECORDING ID: 10195_2022-04-07-234549\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: BC060\nOPERATOR: PW\nAZIMUTH: 0\nHX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.235203 [V]\nDC: 0.00991821 [V]\nCAL NAME: --- \nSENSOR SERIAL: 57011\nSATURATION: 0 %\nMIN VALUE: -0.11459 [V]\nMAX VALUE: 0.120613 [V]\nHY\nTAG: H2\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 1.45518 [V]\nDC: 0.0186157 [V]\nCAL NAME: --- \nSENSOR SERIAL: 54878\nSATURATION: 0.117967 %\nMIN VALUE: -1.24493 [V]\nMAX VALUE: 0.21025 [V]\nHZ\nTAG: H3\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.0480434 [V]\nDC: -0.0112915 [V]\nCAL NAME: --- \nSENSOR SERIAL: 53229\nSATURATION: 0 %\nMIN VALUE: -0.0230002 [V]\nMAX VALUE: 0.0250432 [V]\nREFERENCE\nRECORDING ID: 10126_2022-04-07-225118\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: BC061\nOPERATOR: PW\nAZIMUTH: 0\nRX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.235203 [V]\nDC: 0.00991821 [V]\nCAL NAME: --- \nSENSOR SERIAL: 57011\nSATURATION: 0 %\nMIN VALUE: -0.11459 [V]\nMAX VALUE: 0.120613 [V]\nRY\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.235203 [V]\nDC: 0.00991821 [V]\nCAL NAME: --- \nSENSOR SERIAL: 57011\nSATURATION: 0 %\nMIN VALUE: -0.11459 [V]\nMAX VALUE: 0.120613 [V]"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/black-cat-bore-2022/BC060.edi"
 },
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   "mt_metadata": "1.0.10",
   "mth5": "0.6.8"
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  "git_commit": "e208b15fb70740d8c44de51c532e6debd59c4e24",
  "parameters": {
   "dimensionality": {
    "beta_per_period_deg": 3.0,
    "skew_3d_deg": 5.0,
    "pct_periods_3d_threshold": 40,
    "ellip_2d_deg": 0.1,
    "min_rez_row_sine": 0.01,
    "beta_physical_cap_deg": 15.0,
    "min_usable_period_frac": 0.5,
    "skew_aggregation": "median"
   },
   "diagnostic": "completeness/smoothness (median rel error + coverage + smoothness)"
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  "generated": "2026-09-20T04:08:35.832153+00:00",
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  "input_sha256": "495bca828db95db2074a8c099fe515ec8d43bdf6f4ebbcb709c7a48f2fc08070",
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   "source_record_id": "mt100453/CEI0292BlackCatBore.zip!Appendix III - Final Data (EDI Curves & Plots)/BC060.edi"
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 },
 "coordinate_qc": null,
 "canonical_conditioning": null,
 "frame": {
  "convention_check": {
   "detail": null,
   "n_periods_used": 92,
   "phs_xy_median_deg": 25.15,
   "phs_yx_median_deg": -136.55,
   "verdict": "ok"
  },
  "declared_azimuth_deg": 0.0,
  "derotated": false,
  "evidence": {
   "branch": "spectra",
   "emeas_azimuths": {
    "ex": null,
    "ey": null
   },
   "hmeas_azimuths": {
    "hx": 0.0,
    "hy": 90.0
   },
   "rotspec": "0",
   "trot": null,
   "zrot": null
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  "frame_served": "declared-zero",
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null
 },
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   "kind": "transfer_function",
   "format": "edi",
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