NASA C-MAPSS demo fleet · viewed at cycle 120 · 30 machines · generated 2026-07-12
Of 30 monitored units, 13 are healthy and have not crossed the surprise threshold. 7 units are in act_now status with sustained, unambiguous anomaly patterns, and 10 more are in watch status where the pattern is less clear-cut. The most urgent is unit 58, firing fleet-wide 11 cycles ago with rotation-domain deviation now at 4.93x baseline and still rising, and already triaged for escalation.
Each machine's surprise score vs its own learned "normal", at the latest reading — ranked most-to-least urgent.
Unit 58 shows a fleet-wide rotation-domain anomaly that fired 11 cycles ago and is still climbing.
Surprise over the life observed so far (earliest → latest tenth)
Rotation domain is dominant at 4.93x baseline now, up from 2.03x at firing (cycle 109, 77th percentile fleet-wide); the surprise signal continued rising through the most recent segments (segment means 1.421, 2.319, 3.359).
Unit 57 shows a fleet-wide reconstruction-domain anomaly that fired 20 cycles ago and continues to rise sharply.
Surprise over the life observed so far (earliest → latest tenth)
Reconstruction domain is dominant at 4.92x baseline now, up from 1.81x at firing (cycle 100, 75th percentile fleet-wide); trajectory shows a steep late rise from 2.874 to 5.25 across the last two segments.
Unit 27 shows an isolated rotation-domain anomaly that fired 38 cycles ago and remains elevated.
Surprise over the life observed so far (earliest → latest tenth)
Rotation domain is dominant at 4.36x baseline now, up from 2.29x at firing (cycle 82, 95th percentile isolated event); segment means show a steady climb, reaching 3.275 then 4.538 in the final two segments.
Unit 29 shows a fleet-wide reconstruction-domain anomaly that fired 14 cycles ago.
Surprise over the life observed so far (earliest → latest tenth)
Reconstruction domain is dominant at 2.98x baseline now, up from 1.62x at firing (cycle 106, 63rd percentile fleet-wide); the signal is not confirmed as continuing to rise, though the latest segment mean reached 2.589 after 2.33.
Unit 8 shows an isolated reconstruction-domain anomaly that fired 41 cycles ago and continues to rise.
Surprise over the life observed so far (earliest → latest tenth)
Reconstruction domain is dominant at 2.95x baseline now, up from 1.77x at firing (cycle 79, 96th percentile isolated event); trajectory climbs steadily, reaching 4.434 then 4.83 in the final two segments.
Unit 19 shows an isolated reconstruction-domain anomaly that fired 27 cycles ago and continues to rise.
Surprise over the life observed so far (earliest → latest tenth)
Reconstruction domain is dominant at 2.69x baseline now, up from 1.66x at firing (cycle 93, 84th percentile isolated event); segment means rise steadily, reaching 4.174 then 4.753 in the final two segments.
Unit 77 shows an isolated pressure-domain anomaly that fired 22 cycles ago and continues to rise.
Surprise over the life observed so far (earliest → latest tenth)
Pressure domain is dominant at 2.07x baseline now, down from 2.88x at firing (cycle 98, 97th percentile isolated event); segment means climbed to 3.411 then 3.571 in the final two segments, though the current ratio is lower than at firing.
Unit 60 shows a recent fleet-wide rotation-domain deviation that fired just 3 cycles ago.
Surprise over the life observed so far (earliest → latest tenth)
Rotation domain ratio now 2.32x baseline, up from 1.78x at firing (cycle 117, 65th percentile fleet-wide); the pattern is too recent (3 cycles since firing) to confirm trend direction.
Unit 93 shows a fleet-wide thermal-domain deviation that fired 11 cycles ago.
Surprise over the life observed so far (earliest → latest tenth)
Thermal domain ratio now 2.14x baseline, up from 1.85x at firing (cycle 109, 71st percentile fleet-wide); the signal is not confirmed as continuing to rise, though the latest segment mean reached 2.595 after 1.547.
Unit 81 shows a fleet-wide thermal-domain deviation that fired 6 cycles ago and appears to be rising.
Surprise over the life observed so far (earliest → latest tenth)
Thermal domain ratio now 1.84x baseline, up from 1.53x at firing (cycle 114, 55th percentile fleet-wide); segment means show a recent uptick to 2.082 after 1.447.
Unit 80 shows an isolated rotation-domain anomaly that fired 46 cycles ago and has since eased somewhat.
Surprise over the life observed so far (earliest → latest tenth)
Rotation domain ratio now 1.73x baseline, down from 2.11x at firing (cycle 74, 99th percentile isolated event); the dominant-domain ratio is 2.2x baseline, and the signal is not confirmed as continuing to rise, though segment means reached 1.964 then 2.501 recently.
Unit 62 shows an isolated pressure-domain anomaly that fired 31 cycles ago and has largely settled.
Surprise over the life observed so far (earliest → latest tenth)
Pressure domain ratio now 1.54x baseline, down slightly from 1.63x at firing (cycle 89, 90th percentile isolated event); the dominant-domain ratio is 3.52x baseline, with segment means peaking at 4.05 in the final segment.
Unit 51 shows a recent fleet-wide rotation-domain deviation that fired 4 cycles ago.
Surprise over the life observed so far (earliest → latest tenth)
Rotation domain ratio now 1.41x baseline, down from 1.67x at firing (cycle 116, 71st percentile fleet-wide); the dominant-domain ratio is 2.78x baseline, and the pattern is too recent (4 cycles since firing) to confirm trend.
Unit 22 shows a recent isolated pressure-domain deviation that fired 3 cycles ago and has eased.
Surprise over the life observed so far (earliest → latest tenth)
Pressure domain ratio now 1.32x baseline, down from 1.82x at firing (cycle 117, 87th percentile isolated event); the dominant-domain ratio is 3.75x baseline, with segment means spiking to 4.241 in the final segment.
Unit 53 shows a fleet-wide rotation-domain deviation that fired 10 cycles ago and has eased.
Surprise over the life observed so far (earliest → latest tenth)
Rotation domain ratio now 1.31x baseline, down from 1.97x at firing (cycle 110, 72nd percentile fleet-wide); the dominant-domain ratio is 2.2x baseline, with segment means reaching 1.929 then 2.21 recently.
Unit 28 shows an isolated rotation-domain anomaly that fired 28 cycles ago and has largely settled.
Surprise over the life observed so far (earliest → latest tenth)
Rotation domain ratio now 1.24x baseline, down from 2.09x at firing (cycle 92, 92nd percentile isolated event); the dominant-domain ratio is 1.72x baseline, with segment means at 1.871 then 1.936 in the final two segments.
Unit 26 shows a fleet-wide rotation-domain deviation that fired 6 cycles ago and has largely settled.
Surprise over the life observed so far (earliest → latest tenth)
Rotation domain ratio now 1.03x baseline, down from 1.7x at firing (cycle 114, 65th percentile fleet-wide); the dominant-domain ratio is 1.71x baseline, with segment means at 1.823 then 2.156 in the final two segments.
unit 3, unit 34, unit 100, unit 72, unit 98, unit 82, unit 5, unit 38, unit 52, unit 25, unit 79, unit 43, unit 95