Is this flight software?

No. SIDUS models are educational reimplementations. Cross-check before any flight decision.

EPS orbit-average power

P_avg=P_sun*(1-f_ecl)*eta.

SIDUS educational calculator. Category utilities. Tags: operations, power, satellite, utilities. Pure SI. Not flight software.

P_avg = P_sun (1−f_ecl) η

Orbit-average EPS power

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.

Read /llms.txt or call https://sidus.tools/api/mcp. Open the interactive page for live SI inputs.