Space Insurer current view on COTS
- Posted by Denis Bousquet
- On December 3, 2019
- 0
- Questions on COTS based on current space-designed units statistics
- Space insurer concern on COTS
- Conclusion
Insurer’s Data
Satellite population of the Study
- Type of satellites : Telecom GEO
- Manufacturers : Western (6-majors)
- Launch date : after 1979
- Sufficient visibility from AXAXL
Available data
- Satellite design
- In-orbit anomalies
- Losses
- Covered by NDA
- Database of 5600 satellite.years and 74 equivalent.satellites failure
Reliability Statistics
Type of failed units
- Losses of electronic units have decreased
- design / protection / testing / screening have improved
- How can COTS integrate lessons learned from “space designed” units ?
Cause of failure (Launches after 1995)
- Most issues are design related
- Design issues may appear late in life
- Would this be better, worse or different with COTS?
- REX: large scale on-ground vs small-scale in-orbit?
Type of failed system : with or without redundancy
- Single Point Failure : partial loss or total loss (typ SADM, depl mechanism, LAE)
- Redundancy : lack of redundancy
- System : affecting all units
- Graceful degradation (typ. SA string, battery cell)
- Given the uncertainty on COTS reliability :
- Can we avoid COTS usage on SPF?
- Redundant systems : can we mix COTS and “space designed” units?
Concern for Insurers to insure COTS
- Space environment effect
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- Vaccum (outgassing…), T° cycling, Radiation…
- Validation from Design or Tests
- Reproducibility / traceability
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- Is the heritage applicable?
- Confidence on Lot Acceptance Testing?
- Qualification process to be adjusted?
- Long Term Behavior
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- Need to wait several years before validating a design
- As for any new technology
- Failure propagation
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- New type of packaging
- Hidden SPF
- Serial Risk
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- On-board degradation might be different
- Failure on several satellites due to same root cause
Space Insurance Market
- Insurance Premium rate is based on
- Technical merit (design, heritage)
- Supply & Demand (i.e. Sum Insured vs. available capacity)
- Usage of COTS might have a impact on the premium today
- Large impact in case of (serial) failure due to COTS
Insurance Market Capacity in 2019
Space Insurance Market
Market Summary
Conclusion
- Designing space product remains a challenge
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- How COTS units can have the same reliability?
- More margin? More testing? More screening?
- System design with COTS shall be at least as reliable as standard design
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- Trade-off between COTS and redundancy / No SPF with COTS
- COTS impact shall be clearly analyzed, understood and mitigated
- COTS usage is expected by insurers to increase
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- With care and higher premium at start
- Insurance market might react sharply in case of serial issues with COTS
- Development of COTS shall be spread enough over time
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- Space Insurer current view on COTS - December 3, 2019
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