Position data with a chain of custody.
Every station in the ledger is accepted once, solved by minimum curvature, and QC-checked at acceptance — projection discrepancies, high dogleg, out-of-tolerance stations flagged before they propagate. From that record come the products geosteering consumes: the definitive survey, vertical-section position, above/below and left/right relative to plan, and continuous plan-vs-actual against the stage-based plan.
- Accepted, QC-checked surveys
- Vertical-section position data
- Continuous plan-vs-actual

