A behaviour in which a craft actively controls which sensor bands it appears on, in order to evade, spoof or mislead observers. Distinct from passive low observability: signature management is something the craft does, not something its surfaces happen to be.
How Skywatcher uses the term
The Nine-Class UAP Taxonomy uses signature management as one of its diagnostic criteria. A craft that selectively registers on some bands of the team’s multi-sensor stack (electro-optical, shortwave infrared, midwave infrared, radar, laser range finder) while evading others is interpreted as exhibiting signature management.
Examples within the taxonomy
- Class I (Tetra) produces no reflective return when lased, and when targeted by laser range finder jinks rapidly enough that electro-optical and infrared sensors cannot maintain lock. Active evasion of a specific sensor type.
- Class IV (Beam) is visible only in infrared, with no electro-optical return at all. Selective single-band presentation.
- Class VI (Bright Star) oscillates horizontally fast enough that its radar return reads as a spinning propeller, and electro-optical sensors sometimes register the single craft as multiple adjacent objects. Spoofing across two sensor types simultaneously.
- Class VII (Jellyfish) produces a localised area effect on electronics, including simultaneous failures in independent non-networked systems. Note: per canonical Skywatcher framing, the effect is independent of specific targeting or sensor interaction.
Relationship to the Five Observables
Low observability is the third of Elizondo’s Five Observables. Signature management is the active, narrower case: a craft is not merely low-observable, it is selectively managing which observers it shows itself to. The two concepts overlap but are not identical.
How to weigh it
Signature management is a behavioural interpretation, not a measurement. It depends on the observer ruling out passive explanations (surface coatings, geometry, sensor artefacts) and concluding that the craft is choosing how it appears. Single-source for the taxonomy use is Skywatcher.
Connections
Skywatcher · Nine-Class UAP Taxonomy · Five Observables · James Fowler · 2003 Microwave Incident