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MSAS General Introduction

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Title MSAS General Introduction
Author(s) GMV.
Level Basic
Year of Publication 2011
Logo GMV.png

The Multi-functional Satellite Augmentation System (MSAS) is the Japanese SBAS System: a GPS Augmentation system with the goal of improving its accuracy, integrity, and availability, and that uses the Multifunctional Transport Satellites (MTSAT) owned and operated by the [Japanese Ministry of Land, Infrastructure and Transport] and the [Japan Meteorological Agency (JMA)].


The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration (FAA) to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essentially,

MSAS is intended to enable aircraft to rely on GPS for all phases of flight, including precision approaches to any airport within its coverage area. Tests had been accomplished successfully, MSAS for aviation use was commissioned on September 27, 2007.

The International Civil Aviation Organization (ICAO) calls this type of system a satellite-based augmentation system (SBAS). Europe and Asia are developing their own SBASs, the Indian GPS Aided Geo Augmented Navigation (GAGAN), the European Geostationary Navigation Overlay Service (EGNOS) and the Japanese Multi-functional Satellite Augmentation System (MSAS), respectively. Commercial systems include StarFire and OmniSTAR.[1]

WAAS Related Articles


The following articles include further information about different important topics related to a MSAS: