{
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 "version": "0.1",
 "ausmt_id": "au.ccmt-2017.CC29",
 "station": "CC29",
 "survey": "Curnamona 2017",
 "survey_id": "ccmt-2017",
 "country": "Australia",
 "organisation": "Adelaide University",
 "location": {
  "lat": -30.9665,
  "lon": 140.595811
 },
 "data": {
  "type": "BBMT",
  "n_periods": 56,
  "period_min_s": 0.005,
  "period_max_s": 1580.00073
 },
 "diagnostics": {
  "median_relative_error": 0.026,
  "remote_reference": false,
  "tipper_available": false,
  "completeness_smoothness_diagnostic": {
   "value": 4.7,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "1-D",
  "skew_beta_median_deg": 2.3,
  "pct_periods_3d": 35,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": null,
  "algorithm": null,
  "remote_reference": false,
  "remote_site": null,
  "file_written_by": {
   "name": "WINGLINK EDI",
   "version": "1.0.22"
  },
  "note": "MAXINFO=999\nSURVEY ID:Area Name\nSURVEY CO:\nCLIENT CO:\nAREA:Area Name\nROTATION=FIX"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY-4.0",
  "edi_path": "edi/ccmt-2017/CC29.edi"
 },
 "provenance": {
  "pipeline": "ausmt/extract.build_portal",
  "pipeline_version": "0.2.1",
  "extractor": "mt_metadata (community canonical)",
  "software": {
   "python": "3.12.14",
   "mt_metadata": "1.0.10",
   "mth5": "0.6.8"
  },
  "git_commit": "25c90921c42c72bbc5455b4bbdab9137cf8b8e48",
  "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)"
  },
  "generated": "2026-09-09T06:22:47.791693+00:00",
  "input_file": "CC29.edi",
  "input_sha256": "689bcaff5250fa1f0b103f665c1373dd694577692bdf77ce0cc447afc4d5fa4f"
 },
 "coordinate_qc": null,
 "canonical_conditioning": [
  "survey.id->ccmt-2017",
  "survey.project->Curnamona_Conductor",
  "survey.geographic_name sanitized",
  "station.geographic_name sanitized",
  "sign_convention: '+' is a library default — EDI carries no machine-readable sign convention; NOT asserted by source",
  "declination.epoch/model: library defaults (epoch=None, model=IGRF) — an EDI states only the declination value; epoch/model NOT asserted by source",
  "channel orientations: degenerate/defaulted (ex and ey azimuths both 0 deg — parallel dipoles are non-physical); orientations NOT asserted by source EMEAS geometry",
  "citation.authors<-survey_meta:Ben Kay; Graham Heinson; Goran Boren",
  "citation.title<-survey_meta",
  "copyright.release_status=Data Citation Required; conditions_of_use set from licence CC-BY-4.0 (replaced mt_metadata default boilerplate)"
 ],
 "frame": {
  "evidence": {
   "branch": "mt",
   "zrot": "8",
   "trot": null,
   "rotspec": null,
   "hmeas_azimuths": {
    "hx": 0.0,
    "hy": 90.0
   },
   "emeas_azimuths": {
    "ex": null,
    "ey": null
   }
  },
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null,
  "derotated": false,
  "frame_served": "declared-azimuth",
  "declared_azimuth_deg": 8.0,
  "convention_check": {
   "verdict": "ok",
   "phs_xy_median_deg": 34.61,
   "phs_yx_median_deg": -153.93,
   "n_periods_used": 56,
   "detail": null
  },
  "survey_frame_note": "frame: mixed declared frames across stations: 0°…8° — each station is served in its own declared acquisition frame; this survey does not share one frame (nothing de-rotated)"
 },
 "runs": [
  {
   "id": "['CC29']",
   "time_period": {
    "start": "2017-07-11T02:16:37+00:00",
    "end": "2017-07-12T23:23:50+00:00"
   },
   "sample_rate_hz": 1000.0,
   "data_logger": {
    "manufacturer": "LEMI",
    "model": "LEMI-423",
    "serial_number": "#0009",
    "identifiers": [
     {
      "scheme": "DOI",
      "identifier": "10.82388/ejgot790"
     }
    ]
   },
   "channels": [
    {
     "component": "ex",
     "measurement_azimuth_deg": 0.0,
     "dipole_length_m": 50.0
    },
    {
     "component": "ey",
     "measurement_azimuth_deg": 90.0,
     "dipole_length_m": 50.0
    },
    {
     "component": "hx",
     "sensor": {
      "manufacturer": "LEMI",
      "model": "LEMI-120",
      "serial_number": "269",
      "identifiers": [
       {
        "scheme": "DOI",
        "identifier": "10.82388/exnq4adi"
       }
      ]
     }
    },
    {
     "component": "hy",
     "sensor": {
      "manufacturer": "LEMI",
      "model": "LEMI-120",
      "serial_number": "266",
      "identifiers": [
       {
        "scheme": "DOI",
        "identifier": "10.82388/8owf1wis"
       }
      ]
     }
    }
   ]
  }
 ],
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   "representation_role": "original",
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}