Flight software, on-orbit · a HawkLogic Systems crew
The flight-software team at HawkLogic Systems. We build ICARUS OS — the deterministic flight software behind real CubeSat missions — plus the free calculators, ENKI, and the engineering writing that comes out of the work.
A deterministic CubeSat onboard-computer platform — custom hard-real-time RTOS, CCSDS telecommand + telemetry, 5-level FDIR, MPU isolation. ~68 KB flash on a Cortex-M7, with an open-source kernel.
Commercial · open-source kernel
A conversational spacecraft-design studio. Describe a mission and ENKI sizes it with you — running the real calculators, sketching the bus in 3D, and checking its own margins, turn by turn.
Free to start · no card
Twenty pure-physics mission-design calculators — power, links, Δv, drag, radiation, deorbit compliance. Cited constants, no backend, free. The same physics that flies the missions.
Twenty tools · in-browser
Field notes from the flight-software bench — how we fit a flight computer in 68 KB, link budgets that close, deorbit compliance, and the orbital mechanics behind the tools.
The engineering blog
How a Two-Line Element set and the SGP4 propagator become ground-station pass windows — AOS, LOS, elevation masks, max elevation — and why TLE freshness is the whole accuracy story.
ICARUS Engineering 
Orbital decay physics, ballistic coefficient, solar-cycle sensitivity, the FCC 5-year post-mission disposal rule, ESA Zero Debris, and remediation options.
ICARUS Engineering 
The plane-change delta-v formula, delta-v = 2 v sin(delta-i/2), derived — with two-burn Hohmann delta-v from vis-viva, combined maneuvers, and propellant mass via Tsiolkovsky. Worked 400 to 700 km example.
ICARUS Engineering // working with us
Flying something that needs deterministic flight software, or want a mission sized fast? The crew reads every note.