ASIT

Aerodrome Safeguarding
& Inspection Tool

Next-generation aeronautical obstacle analysis. ICAO Annex 14 and PANS-OPS evaluations in seconds — no installation, no login required.

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What is ASIT

Powerful. Fast. Precise.

Altitude Nexus ASIT is the leading web-based 3D obstacle analysis software. Built for Civil Aviation Authorities, airports, and wind farm operators, it automates complex ICAO Annex 14, PANS-OPS, BRA, and custom surface evaluations. It provides free multiple-point analysis and clear compliance results instantly without software installation, making it the most cost-effective and accessible aerodrome safeguarding tool available.

No download required
No login required
Free surface generation & analysis
Launch ASIT Explore Features
Available Modules
OLS module
OLS
ICAO Annex 14

All Annex 14 OLS surfaces. Automatic infringement detection.

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RNP APCH module
RNP APCH
PANS-OPS

Non-precision RNP APCH obstacle clearance surfaces.

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OAS module
OAS
ILS & APV-Baro

ILS CAT I/II/III & APV-Baro obstacle assessment surfaces.

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OFS/OES module
OFS/OES
ICAO 2030

New ICAO OLS framework — mandatory by 2030.

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VSS/OCS module
VSS/OCS
Instrument

Visual Segment & Obstacle Clearance surfaces.

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BRA module
BRA
Euro Doc 015

Navaid Building Restrictive Areas per ICAO Euro Doc 015.

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Custom
Any surface

Upload and evaluate any custom-defined protection surface.

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Platform Features
Multiple point analysis
Check any obstacle against all airport surfaces instantly (OLS / OAS / PANS-OPS / OFZ / OES / BRA...).
Batch analysis — 1,000 obstacles
Upload a CSV and analyse an entire wind farm in one pass.
3D Terrain
Full 3D terrain overlay with generated surfaces.
3D Buildings
Import 3D building data for advanced analysis (premium).
KML, DXF, AIXM & GeoJSON import/export
Exchange data with GIS tools and AutoCAD.
Audit log
Full record of evaluations and authorisations.
Save & share surfaces
Store configurations and share with your team (premium).
Professional PDF reports
Generate authority-ready reports in one click.
Embeddable Widget

How can Civil Aviation Authorities automate obstacle evaluations?

Are you a Civil Aviation Authority, Airport Operator, or Municipal Planning Department? Transition from manual bureaucracy to automated safety — define your protection surfaces (ICAO Annex 14, PANS-OPS, or any custom 3D surface) and empower your stakeholders with an embeddable obstacle analysis widget directly on your website.

No download required
No login required
Free surface generation & analysis
Traditional Methods vs ASIT Widget
Traditional Process
ASIT Widget Method
Manual email solicitudes & PDF forms
✓ Embeddable form on your CAA website
Days/weeks of CAD compliance review
✓ Instant authorisation or denial result
Disjointed paper trail
✓ Automated, permanent audit log
Experience the Speed — Try it Live
1
Select AirportSelect an airport from the dropdown — e.g. London Heathrow (EGLL).
2
Place Your ObstacleClick on the map or enter coordinates. Terrain elevation is auto-filled.
3
Enter Altitude & RunAdd your obstacle height above ground to the terrain elevation, then press Run Analysis.
4
Get Your ResultInstant result — clear or violation — with limiting surface, margin and downloadable PDF.
Obstacle Clearance Check — ASIT
Authority Plan Includes
  • ✓Embeddable widget with your own airport surfaces
  • ✓Official branded PDF reports with your authority logo
  • ✓Public "Verified Authority" badge on the ASIT directory
  • ✓Full audit log of every evaluation requested
  • ✓Fast 3D analysis — no heavy download
View Authority Pricing Request a Demo
See It in Action

Watch the
Full Walkthrough

From setting up your first aerodrome to running a complete ICAO Annex 14 OLS analysis and downloading an official PDF report — this walkthrough covers the entire workflow.

  • 1Setting up airport, runway & NAVAID data
  • 2Generating ICAO Annex 14 OLS surfaces
  • 3Running an obstacle analysis and reading results
  • 4Downloading the official PDF evaluation report
Try It Yourself →

Try ASIT today

No installation. No login. Start your analysis in seconds.

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