HALOOS

flight software for the long dark

A single pane of glass between the crew and the void — attitude, propulsion, life support and comms, held steady and readable while the vehicle falls forever around the world.

Open subsystems How it's built

ATHENA · V7.66

TRACK LOCK

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[ 01 · SUBSYSTEMS ]

Four systems, one pane of glass.

Every board reports the same way — a gauge, a state, and the two numbers that matter. Green is nominal. Amber wants your attention before it becomes a problem.

S-01 Navigation NOMINAL

Star-tracker fix converged. Ephemeris propagating on schedule; next state vector uplink in 04:11.

Fix error: 0.004°
Drift: 0.9 arcs/hr

S-02 Life Support NOMINAL

Cabin loop stable. Scrubbers cycling CO₂ within band; humidity condensate returning to reserve.

Cabin: 1013 hPa
CO₂: 2.1 mmHg

S-03 Propulsion STANDBY

Main engine safed. Tank pressure trending low on the oxidizer side — flagged for review before the next burn window.

Chamber: 0.0 bar
Ox tank: 18.4 bar

S-04 Comms LOCKED

High-gain antenna tracking Canberra. Downlink locked, forward link acknowledged, round-trip 1.28 s.

Eb/N0: 12.4 dB
Rate: 8.4 Gbps

[ 02 · MISSION LOG ]

Everything the vehicle has to say.

A single append-only stream, stamped in mission-elapsed time. The newest event is always on top. Nothing is ever quietly overwritten.