High-Speed Position Sensor · STS Bunkering

Millimeter-accurate positioning for every STS approach — in real time.

Terraformer's high-speed position sensor gives your operations team the update rate and precision needed to approach and moor safely — cutting approach time and collision risk on every transfer.

Relative Distance
12.4m
LIVE
Closing Speed
0.3m/s
Update Rate
1000Hz
The Operational Risk

When two vessels close the gap, guesswork is not an option.

Every STS transfer carries the same underlying risk: two vessels, often hundreds of thousands of tonnes combined, closing distance in open water or at anchorage. Standard GPS and visual estimation update too slowly and too imprecisely for the final meters of approach.

  • Hull contact and fender damage from misjudged closing speed
  • Delayed mooring windows that ripple through your entire bunkering schedule
  • Increased scrutiny from insurers, class societies, and charterers after near-miss incidents
  • Operators forced to rely on visual judgment and radio calls during the most critical minutes of the operation
Standard GNSS ~10 Hz
Visual / radio estimation Reactive
Terraformer HS Sensor Up to 1000 Hz
How It Works

One sensor system. Continuous, real-time positioning — from first approach to final mooring.

Instead of estimating distance and closing speed, your team sees it — updated fast enough to matter during the final, highest-risk meters of approach. The outcome: shorter approach phases, fewer aborted maneuvers, and a documented, data-backed safety record for every transfer.

01

Mount

Sensor units are installed on the Constant Heading Ship (CHS), markers on the Manoeuvring Ship (MS) — retrofit-compatible, no major structural change required.

02

Stream

Continuous relative-position data — distance, bearing, closing speed — streams in real time throughout the maneuver.

03

Act

Your bridge team and operations center see live data on their existing displays and act on it immediately.

What Changes, From Day One

Measurable outcomes for your operations team.

1000Hz
Update rate

Up to 1000 refreshes per second vs. ~10 Hz on standard GNSS — continuous situational awareness on final approach.

<1cm
Positioning accuracy

Sub-centimeter precision, sufficient for safe mooring distances even in restricted space or poor weather.

Approach time

Continuous closing-speed data supports faster, more confident final approaches — shortening the highest-risk phase.

Incident rate

Proactive course correction instead of reactive response, directly reducing hull-contact risk.

100%
Logged maneuvers

Every transfer generates a time-stamped position record for audits, investigations, and insurer reporting.

Built for Maritime-Grade Reliability

Engineered and documented to the standards your operation is already held to.

Marine-certified hardware

IEC 60945, marine IP rating

Class society alignment

Designed to align with DNV / ABS / Lloyd's Register applicable standards

Audit-ready data

Position logging suitable for insurer and internal audit documentation

Direct engineering support

Access to Terraformer's engineering team during installation and commissioning

Get Started

Talk to our engineering team about your STS operation.

We respond within 1 business day. Your information is used only to prepare for your consultation — never shared with third parties.

What happens after you submit

  • 01 We review your current setup and operational constraints.
  • 02 We schedule a 30-minute call with our engineering team.
  • 03 You get a tailored recommendation — no obligation.
Next Step

Every transfer without real-time position data is a transfer running on estimation.

Your next STS operation is already scheduled. The question is whether your team will approach it with continuous, high-speed position data — or with the same visual estimation that's created near-misses before.

Book a Consultation