Anomaly Reporting Coordinate System

Used by military personnel to log spatial disturbances near fossil sites, later determined to be early TARDIS positional data

2 appearances

Appearances in the Narrative

When this object appears and how it's used

2 moments

S19E2 · Castrovalva Part 2

Preparing the perilous Castrovalva journey

The manually set TARDIS coordinates represent the crux of the debate: Tegan’s attempt to input them under unstable conditions embodies trust in human adaptation over mechanical reliability, a leap into uncertainty justified only by desperation and the Doctor’s need to heal.

Before: Presumably undefined or lately corrupted by the TARDIS’s chaotic systems and the Doctor’s weakened mental state.

After: Tentatively set by Tegan according to memory and instruction, now unstable data that the Doctor fears could send them astray or into danger.

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S19E19 · Earthshock Part 1

Military scouts triangulate alien intruders

The navigation coordinates emerge as a critical tactical output from Walters’ equipment, converting raw positional data into a locked frame of reference that pinpoints the intruders as zero three nine by four zero one. These coordinates function as a psychological and operational anchor, transforming ambient strangeness into a quantifiable threat within the military mindset.

Before: Receiving sensor sweeps from the fossil quarry with intermittent anomalies and ghost readings

After: Locked into precise lateral coordinates signaling an organized presence outside known human forces

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