{
 "schema": "ausmt-station",
 "version": "0.1",
 "ausmt_id": "au.century-north-2020-21.CEN3020",
 "station": "CEN3020",
 "survey": "Century North Magnetotelluric Survey 2020-21",
 "survey_id": "century-north-2020-21",
 "country": "Australia",
 "organisation": "Geological Survey of Queensland",
 "location": {
  "lat": -18.653778,
  "lon": 138.512861
 },
 "data": {
  "type": "AMT",
  "n_periods": 100,
  "period_min_s": 0.0001,
  "period_max_s": 2912.71072
 },
 "diagnostics": {
  "median_relative_error": 0.0,
  "remote_reference": true,
  "tipper_available": true,
  "completeness_smoothness_diagnostic": {
   "value": 4.9,
   "basis": "e",
   "note": "not a quality or geological-value judgement"
  },
  "classification": "1-D",
  "skew_beta_median_deg": 0.6,
  "pct_periods_3d": 24,
  "method": "phase-tensor (Caldwell 2004)",
  "note": "screening diagnostic, not an interpretation product"
 },
 "processing": {
  "software": null,
  "algorithm": null,
  "remote_reference": true,
  "remote_site": "CEN2075",
  "file_written_by": {
   "name": "Geotools",
   "version": "2.0.3.12410"
  },
  "note": "source.file=CEN3020.edi (collection.zip!mt100144/Century North MT Data.zip!EDI Curves & Plots/CEN3020.edi)\nsource.collection=Geological Survey of Queensland Open Data Portal record mt100144, resource APPENDIX 1 - Century North MT Data\nsource.sha256=43c96a2e18862b3881c514736bb3f78cc1174aac8faedc7f0261cb33061bc122\nsource.copy=provenance/as-delivered/CEN3020.edi in this package, byte identical to the delivery\nrepair.defect=ACQDATE prints the Geotools placeholder 01/01/01, which the reader takes as the date 2001-01-01, so the delivered file publishes an acquisition date it does not hold; FILEDATE prints 06/14/21, month first with a two digit year\nrepair.change=ACQDATE set to 2021-05-15 and FILEDATE rewritten 06/14/21 to 2021-06-14; each value grows from eight characters to ten, so the header grows by four bytes and no other byte of the file is changed\nrepair.basis=the file's own >INFO recording identifier for the block whose STATION NAME is this station, which prints the receiver serial and the recording start as <box>_yyyy-mm-dd-hhmmss; on the two files where this exporter wrote an acquisition date instead of the placeholder, CEN3100 and CEN4015, that date equals the date of the same file's recording identifier; this file's local recording identifier is 10118_2021-05-15-043402\nrepair.ruling=owner repair rule 2026-09-18: a header defect the reader refuses or misreads is repaired in the served copy, the delivered file kept under provenance/as-delivered/ and the change recorded after >INFO\nrepair.by=AusMT, _tools/repair_edi_header_dates.py\nMAXINFO=111\nPROJECT NAME: Centuary_North\nUNIQUE ID: {db2501dc-4e0b-4e13-a125-f7cac93ef620}\nPROCESS DATE: 2021-05-16 13:03\nDURATION: 18 h 39 m 32 s \nDECLINATION: 5°\nCOORDINATES: -18° 39' 13.6\", 138° 30' 46.3\"\nGPS (MIN - MAX): 8 - 14\nTEMPERATURE (MIN - MAX): 31° - 48°\nCOMB FILTER: 50HZ\nFINE ROBUST: NONE\nEDITING WORKBENCH\nTOTOAL REJECTED CROSSPOWERS: 15.0363%\nROBUST ALGORITHM: Multiple Coherence, ATTACK: 0.85, RATIO: 40% \nSTATIONS\nELECTRICS\nRECORDING ID: 10118_2021-05-15-043402\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: CEN3020\nOPERATOR: NM\nAZIMUTH: 0\nEX\nTAG: E1\nLENGTH: 80 [m]\nAC: 0.877531 [V]\nDC: 0.00114441 [V]\nNEGATIVE RES: 196.578 [Ω]\nPOSITIVE RES: 214.095 [Ω]\nSATURATION: 0%\nMIN VALUE: -0.489245 [V]\nMAX VALUE: 0.388286 [V]\nEY\nTAG: E2\nLENGTH: 80 [m]\nAC: 0.569407 [V]\nDC: -0.0157928 [V]\nNEGATIVE RES: 271.953 [Ω]\nPOSITIVE RES: 197.906 [Ω]\nSATURATION: 0%\nMIN VALUE: -0.269725 [V]\nMAX VALUE: 0.299681 [V]\nMAGNETICS\nRECORDING ID: 10118_2021-05-15-043402\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: CEN3020\nOPERATOR: NM\nAZIMUTH: 0\nHX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.282884 [V]\nDC: 0.0151062 [V]\nCAL NAME: 57010_5F531AE1.scal\nSENSOR SERIAL: 57010\nSATURATION: 0 %\nMIN VALUE: -0.134478 [V]\nMAX VALUE: 0.148406 [V]\nHY\nTAG: H2\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 2.49529 [V]\nDC: 0.0111389 [V]\nCAL NAME: 57016_5F531F89.scal\nSENSOR SERIAL: 57016\nSATURATION: 0.86405 %\nMIN VALUE: -1.24529 [V]\nMAX VALUE: 1.25 [V]\nHZ\nTAG: H3\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.684422 [V]\nDC: 0.00198364 [V]\nCAL NAME: 53227_5F531F89.scal\nSENSOR SERIAL: 53227\nSATURATION: 0 %\nMIN VALUE: -0.0989795 [V]\nMAX VALUE: 0.585442 [V]\nREFERENCE\nRECORDING ID: 10195_2021-05-15-004507\nINSTRUMENT TYPE: MTU-5C\nSTATION NAME: CEN2075\nOPERATOR: NM\nAZIMUTH: 0\nRX\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.282884 [V]\nDC: 0.0151062 [V]\nCAL NAME: 54878_5F531A95.scal\nSENSOR SERIAL: 57010\nSATURATION: 0 %\nMIN VALUE: -0.134478 [V]\nMAX VALUE: 0.148406 [V]\nRY\nTAG: H1\nSENSOR TYPE: MTC-150\nDETECTED SENSOR TYPE: MTC-150\nAC: 0.282884 [V]\nDC: 0.0151062 [V]\nCAL NAME: 54878_5F531A95.scal\nSENSOR SERIAL: 57010\nSATURATION: 0 %\nMIN VALUE: -0.134478 [V]\nMAX VALUE: 0.148406 [V]"
 },
 "distribution": {
  "edi_available": true,
  "license": "CC-BY",
  "edi_path": "edi/century-north-2020-21/CEN3020.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": "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)"
  },
  "generated": "2026-09-20T04:08:35.832153+00:00",
  "input_file": "CEN3020.edi",
  "input_sha256": "c89f0bffed68e62b610ea03eeb17495c012099bd233641e68f28c73329968b50"
 },
 "coordinate_qc": null,
 "canonical_conditioning": [
  "survey.id->century-north-2020-21",
  "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",
  "citation.authors<-survey_meta:Moombarriga Geoscience Pty Ltd; Red Metal Limited",
  "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": {
  "convention_check": {
   "detail": null,
   "n_periods_used": 95,
   "phs_xy_median_deg": 50.36,
   "phs_yx_median_deg": -139.06,
   "verdict": "ok"
  },
  "declared_azimuth_deg": 0.0,
  "derotated": false,
  "evidence": {
   "branch": "mt",
   "emeas_azimuths": {
    "ex": null,
    "ey": null
   },
   "hmeas_azimuths": {
    "hx": 0.0,
    "hy": 90.0
   },
   "rotspec": null,
   "trot": "0",
   "zrot": "0"
  },
  "frame_served": "declared-zero",
  "impedance_rotation_deg_source": null,
  "tipper_rotation_deg_source": null
 },
 "resources": [
  {
   "id": "edi",
   "kind": "transfer_function",
   "format": "edi",
   "provenance_role": "source",
   "representation_role": "original",
   "path": "edi/century-north-2020-21/CEN3020.edi"
  },
  {
   "id": "emtfxml",
   "kind": "transfer_function",
   "format": "emtfxml",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "xml/century-north-2020-21/CEN3020.xml"
  },
  {
   "id": "mth5",
   "kind": "transfer_function",
   "format": "mth5",
   "provenance_role": "derived",
   "representation_role": "alternate",
   "path": "h5/century-north-2020-21/CEN3020.h5"
  },
  {
   "id": "edi-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/century-north-2020-21-edi.zip"
  },
  {
   "id": "xml-zip",
   "kind": "archive",
   "format": "zip",
   "path": "bundles/century-north-2020-21-xml.zip"
  },
  {
   "id": "survey-mth5",
   "kind": "archive",
   "format": "mth5",
   "path": "bundles/century-north-2020-21-tf.h5"
  }
 ]
}