Nightly Vibe · GNSS interference fallback

Run the 15-minute GPS truth drill before autonomy trusts a bad coordinate.

Built for operators who depend on positioning or timing: robots, field crews, ground stations, and automation logs. Mark the symptoms, choose independent fallbacks, then copy a clear hold/degraded/resume decision packet.

Name the mission and operating surface

Protects a moving machine from treating spoofed position as truth.

Mission / area under suspicion

Evidence of bad position

Choose observable symptoms, not vibes.

Independent fallback truth

Score what remains trustworthy if GNSS lies.

Pick the operator moves

Useful in under 90 seconds: select actions and copy the decision packet.

Copyable artifact

Continuity decision packet

Paste this into a run log, incident channel, mission note, or agent handoff before anyone resumes normal mode.

GNSS CONTINUITY DRILL
Mission: Baltic-route drone test / field robot run
Target user: robotics operator before field autonomy
Decision: WATCH WITH RESUME GATE
Risk score: 46/100 · suspicion 62/100 · fallback strength 54/100
Next check: 15 minutes

Why now:
GNSS interference and spoofing reports are visible enough that GPS-dependent robots, field crews, ground stations, and timestamped automations need a rehearsed fallback before the incident.

Observed symptoms:
- Impossible location jump: Position moves faster than the asset can physically travel.
- Receivers disagree: Two GNSS chipsets or antennas diverge under the same sky.
- Public interference notice: NOTAM, maritime, news, or spectrum-monitoring source flags the area.

Available fallback sources:
- IMU / odometry dead reckoning: Good for short continuity windows; drift must be bounded.
- Camera / landmark confirmation: Strong when known landmarks or lane/route constraints exist.
- Hold-last-safe command: Freeze movement or decisions until position truth recovers.
- Trusted non-GNSS time: NTP/PTP/local monotonic clock keeps evidence ordering intact.

Operator actions:
- Freeze autonomy: Stop autonomous position-dependent decisions immediately.
- Capture evidence bundle: Save receiver logs, screenshots, timestamps, map mismatch, and operator reports.
- Define resume gate: Require two independent sources to agree before normal mode resumes.

Resume gate:
Normal operations resume only when two independent non-shared sources agree, evidence is saved, and the mission owner accepts the residual risk.