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Status Reinhard Roll

Status Reinhard Roll. Budapest 07: the promise. feeding a sample from oven to MS via GC, bypassing GC columns consequence of non-operational side terminal of tapping station. PC#8 That was our hope!!. PC#8: the reality. New software: MS oven via GC better HK data compression

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Status Reinhard Roll

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  1. Status Reinhard Roll 4th Philae post-launch workshop

  2. Budapest 07: the promise • feeding a sample from oven to MS via GC, bypassing GC columns • consequence of non-operational side terminal of tapping station. • PC#8 • That was our hope!! 4th Philae post-launch workshop

  3. PC#8: the reality • New software: • MS oven via GC • better HK • data compression • thoroughly tested: Simulation, GRM, FS • MS not working any more!!! • two non-nominal events, both immediately after switch-on of the MS • Most obvious explanation: Software • suspicion: damaged hardware • one interpretation: Damage in the HV of the MS 4th Philae post-launch workshop

  4. PC#8: the reality • Contingency Slot • downgrade to previous software • step-wise testing • Romap data for error analysis (Ampere-meter) • COSAC behaved like prior to PC#8 (i.e. working) • No permanent hardware damage! 4th Philae post-launch workshop

  5. MS PC#4 PC#8, contingency COSAC, empty mass spectra under similar temperature conditions 4th Philae post-launch workshop

  6. PC#8: the reality • Conclusion • The effect looked like a hardware failure (but is not) • Real reason unknown • Software effect as only plausible cause so far 4th Philae post-launch workshop

  7. PC#9 • Set of HK values • nominal • slightly different timing (seconds, harmless) 4th Philae post-launch workshop

  8. PC#10: the plan • Patch old software to allow MS oven via GC • no data compression • Romap in parallel (just in case) 4th Philae post-launch workshop

  9. PC#10: Details • Tests first (GC heating, MS sniffing) • Go/NoGo • Software upload and verification (EAFT) • Go/NoGo • Test again (GC heating, MS sniffing) • Go/NoGo • Combined test 1 (absorption oven) • Go/NoGo • Combined test 2 (empty oven) 4th Philae post-launch workshop

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