{
  "$id": "https://gcn.nasa.gov/schema/v7.2.3/gcn/notices/maxi/gsc.known.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "unevaluatedProperties": false,
  "title": "MAXI/GSC Known Source Position",
  "description": "MAXI/GSC known-source detection notice.",
  "allOf": [
    { "$ref": "../core/Alert.schema.json" },
    { "$ref": "../core/DateTime.schema.json" },
    { "$ref": "../core/Event.schema.json" },
    { "$ref": "../core/GeoLocBase.schema.json" },
    { "$ref": "../core/Localization.schema.json" },
    { "$ref": "../core/Reporter.schema.json" },
    { "$ref": "../core/Statistics.schema.json" },
    { "$ref": "../core/AdditionalInfo.schema.json" },
    { "$ref": "../core/Spectral.schema.json" }
  ],
  "required": ["mission", "alert_datetime"],
  "properties": {
    "$schema": { "type": "string", "format": "uri" },
    "flux": {
      "type": "number",
      "description": "Representative X-ray flux of the source in the most significant energy band specified by flux_spectral_band and flux_spectral_unit [erg/cm^2/s]."
    },
    "flux_error": {
      "type": "number",
      "description": "1-sigma statistical uncertainty on flux [erg/cm^2/s]."
    },
    "detection_timescale": {
      "type": "number",
      "description": "Detection time scale of the source; unit specified by detection_timescale_units."
    },
    "detection_timescale_units": {
      "type": "string",
      "enum": ["s", "scan", "orbit", "d"],
      "description": "Unit of detection_timescale: s (seconds), scan (one camera scan), orbit (one ISS orbit), or d (days).",
      "default": "s"
    },
    "band_flux_low": {
      "type": "array",
      "items": { "type": "number" },
      "minItems": 2,
      "maxItems": 2,
      "description": "Two-element array [flux, 1-sigma statistical uncertainty] for the 2-4 keV band [erg/cm^2/s]."
    },
    "band_flux_med": {
      "type": "array",
      "items": { "type": "number" },
      "minItems": 2,
      "maxItems": 2,
      "description": "Two-element array [flux, 1-sigma statistical uncertainty] for the 4-10 keV band [erg/cm^2/s]."
    },
    "band_flux_high": {
      "type": "array",
      "items": { "type": "number" },
      "minItems": 2,
      "maxItems": 2,
      "description": "Two-element array [flux, 1-sigma statistical uncertainty] for the 10-20 keV band [erg/cm^2/s]."
    }
  }
}