Cabin leak / depress time
Order-of-magnitude orifice leak time. N₂ and O₂ masses are separate fills (full ΔP for N₂, 0.21·ΔP for O₂), not one combined air mass.
SIDUS educational calculator. Category crew. Tags: atmosphere, crew, Dragon, ECLSS, emergency, ISS, pressure, Soyuz. Pure SI. Not flight software.
Formula
t ≈ τ ln(P₀/P₁) · choked orifice
Depressurization estimate
Primary sources
- NASA-STD-3001 (Human Spaceflight standards overview) (NASA): Human-system standards context (ppO₂ / atmosphere). SIDUS flags are educational. They are not flight-rule substitutes.
- NASA OCHMO CO₂ / metabolic technical briefs (NASA OCHMO): Crew metabolic loads and CO₂ exposure context for ECLSS educational models.
- ISS ECLSS overview literature (NASA ISS program (public summaries)): Public ISS life-support system context for educational O₂/CO₂/thermal models: not a flight-rule substitute.
How do AI agents use this tool?
Read /llms.txt or call https://sidus.tools/api/mcp. Open the interactive page for live SI inputs.