How to use
- Log ≥500 fixes at 5–10 s once all gyros are powered, latitude entered and aligned (often >30 min). Columns: time, vessel gyro, vessel name, ROV gyro, ROV name.
- Drop or paste the heading log below. The vessel & ROV averages populate automatically.
- Enter the dimensional control: offsets A and B from the LARS baseline to the front & back of the ROV, and C, the length between them. Set the LARS offset from the vessel centreline (+ clockwise / − counter-clockwise).
- Choose whether you measured from Aft or from Bow (this flips the angle sign).
- Pick the ROV / LARS arrangement that matches how the ROV is actually sitting on deck — the four buttons cover any way it comes up.
- Read the C-O. Always hand-check it before it goes into the nav software.
1 · Heading log
Drop heading log
.txt / .csv · click to browse · or paste below
.txt / .csv · click to browse · or paste below
No data loaded.
Column mapping — auto-read from header
2 · ROV / LARS arrangement
Pick the picture that matches the ROV on deck. The diagram on the report updates to match.
Calc angle: enter A · B · C
3 · Dimensional control
Units (A · B · C)
A, B and C must share the same unit. LARS offset: + clockwise of the bow, − counter-clockwise.
4 · Quality limits (optional)
Used only for the PASS / REVIEW flag — they do not change the C-O.
5 · Job header
No logo.
Load a heading log (or click Load sample data) to build the gyro calibration report.