navigation acronyms, abbreviations and definitions - International ...

OPG out-of-plane gyroscope
OPMET Operational Met Information (METAR, TAF, SIGMET etc)
OPRC 90 Oil Pollution Preparedness, Response and Cooperation (Convention)
Adopted by IMO ‘90, came into force ‘95. 66 states ratified by ‘02.
OPRC-HNS IMO Protocol to expand OPRC 90. Adopted 2000.
OPRG optical passive ring-resonator gyro
OPSCON operations concept
OPTXS Optical Transport & Synchronization Commitee (ATIS)
OPUS Online Positioning User Service (NOAA for GPS)
OQR Operations Qualification Review (EGNOS)
ORD observed range deviation
Observed range difference at a GPS Monitor Station between
measured sat's position and the sat's position broadcast in Nav Data.
ORD operational requirement document
OREGIN ORganisation of European GNSS and service INdustries
Group of 45 companies to provide public authorities with access to
technical and marketing espertise. Led by FDC (France). Formed in
2000.
ORIENTA System for visually impared in cities (Spain)
ORR operational readiness review
Orthodrome great circle
OS Open Service (Galileo)
Providing position (5-10m) and time (50ns) free of charge, but no
integrity info.
OS Ordnance Survey (UK)
OSA own speed across track
OSAPR Ordnance Survey ADDRESS-POINT reference
OSC Office of Space Commercialization (US)
OSCAR Ordnace Survey digital dataset for mapping UK
OSGB Ordnance Survey GB (OSGB-36 datum hitherto used on OS charts)
OSGi Open Service Gateway Initiative (telematics standard)
OSGM91 Ordnance Survey Geoid Model 1991 (UK)
OSI Open System Interconnection (defined by ISO 7-layer model)
OSI Ordnance Survey of Ireland
OSL own speed along track
OSM Office of Spectrum Management (US)
OSM Openstreetmap Foundation
OSMA One Scotland Mapping Agreement (with OS)
OSMM Ordnance Survey MasterMap (UK)
OSNI Ordnance Survey of Northern Ireland
OSPAR Oslo and Paris Commission
European body co-ordinating national decisions on maritime
environment issues.
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