Glass Room · risk register
Risk matrix
The 5×5 the review board reads: every risk plotted by likelihood × consequence, banded by severity. 1 high · 4 medium · 0 low.
| Very high | R2 | ||||
| High | R1 | ||||
| Moderate | R4 | R3 | |||
| Low | R5 | ||||
| Very low | |||||
| Very low | Low | Moderate | High | Very high |
rows = consequence (top = worst) · columns = likelihood (right = most likely)
Register & mitigations
R1 Launch slip past the transfer window
medium · L3×C4Mitigation: Hold a backup window; design margin for a phasing loop.
R2 Propellant budget overrun on descent
high · L2×C5Mitigation: 10% Δv reserve; hover-time cap enforced by the guidance mode.
R3 Comms link marginal at max range
medium · L3×C3Mitigation: Higher-gain ground antenna; reduce data rate at apogee.
R4 Battery under-sized for eclipse
medium · L2×C3Mitigation: Size to worst-case eclipse from the Clean Room budget; load-shed non-critical.
R5 Late requirement change from the customer
medium · L4×C2Mitigation: Freeze Level-1 requirements at PDR; changes via a board RID.
Adjust a score and the matrix re-bands live. This register prints clean into a board package. Persisted per-mission risk registers land with the board-package document (S13).