Earth IR flux at altitude
F approx sigma Te^4 (R/(R+h))^2.
SIDUS educational calculator. Category utilities. Tags: orbital, power, thermal, utilities. Pure SI. Not flight software.
Formula
F ≈ σ T_e⁴ (R/(R+h))²
Earth IR flux at altitude
Primary sources
- NASA Glenn Research Center: Beginner’s Guide to Aeronautics (NASA GRC): Ideal rocket equation, specific impulse, thrust equation, dynamic pressure education pages.
- Orbital Mechanics for Engineering Students (Howard D. Curtis): Textbook derivations for Hohmann, vis-viva, rocket equation, elements.
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.