PAT-3303-STATE-UNITSARCHETYPE: Asynchronous State Divergence
Dimensional Unit Telemetry Incompatibility & Orbital Loss
Sub-Type: English vs Metric Coordinate Coordinate Skew
VEC:AUTH:0.72•COUP:0.88•LAT:0.55•OVR:0.68
Authority Gradient
0.72
Feedback Coupling
0.88
Telemetry Latency
0.55
Override Suppression
0.68
Structural Pattern Audit Brief
Critical Multi-Node (Level 4)PAT-3303-STATE-UNITS
Ground software produces thruster impulse telemetry in English pound-force seconds while onboard spacecraft navigation expects SI Newton seconds, silently skewing calculated trajectory.
Failure Invariant Breach
Ground_Software (lbf-s) -> Spacecraft_Bus (Newton-s) -> Orbital_Insertion_Engine
Absent Safety Recovery Mechanism
Strongly-typed unit dimensional analysis assertions across software boundaries
Fundamental Invariant Rules
INV-01:Inter-module telemetry schemas must enforce SI unit compilation assertions at all software boundaries.
Engineered Resilience & Mitigation Strategies
MIT-01:Compile-time unit dimensional analysis in aerospace software languages (e.g. Rust / Ada)
MIT-02:Independent optical navigation verification prior to planetary atmospheric entry
Canonical Incident Manifestations (1)
NASA-MCO-1999-1110Deep Space Navigation & Aerospace Software
NASA Mars Climate Orbiter: English vs. Metric Thruster Impulse Unit Discrepancy
Asynchronous dimensional unit definition between ground Decision_Node and spacecraft State_Telemetry accumulated unmonitored coordinate divergence. Spacecraft violated physical orbital insertion Constraint_Boundary.
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