{
  "title": "Delta-Sierra Mars calculator assumptions",
  "version": "1.0",
  "date": "2026-08-13",
  "license": "CC BY 4.0 for dataset metadata; verify source-page terms for site content",
  "assumptions": [
    {
      "id": "water_recovery_example",
      "value": "98",
      "unit": "%",
      "status": "educational scenario / demonstrated ISS context requires system boundary",
      "note_fr": "Le calculateur n’affirme pas qu’une colonie martienne récupérera 98 % de toute son eau.",
      "note_en": "The calculator does not claim a Mars settlement will recover 98% of all water."
    },
    {
      "id": "oxygen_rate_example",
      "value": "0.84",
      "unit": "kg/person/day",
      "status": "editable educational input",
      "note_fr": "Valeur d’exemple modifiable, à remplacer par la valeur de conception choisie et sourcée.",
      "note_en": "Editable example input; replace with the sourced design value selected for the study."
    },
    {
      "id": "cargo_payload_example",
      "value": "50",
      "unit": "t/landing",
      "status": "editable scenario",
      "note_fr": "Ce n’est pas une capacité officielle universelle d’atterrisseur martien.",
      "note_en": "This is not an official universal Mars lander capability."
    },
    {
      "id": "solar_power_density_example",
      "value": "0.18",
      "unit": "kW/m2",
      "status": "editable scenario",
      "note_fr": "Entrée pédagogique ; la performance réelle dépend de la technologie et des conditions.",
      "note_en": "Educational input; real performance depends on technology and conditions."
    }
  ]
}