navigation acronyms, abbreviations and definitions - International ...

integrity risk Probability that a user will experience a position error larger than the
threshold value without an alarm being raised within specified time-toalarm
at any instant of time at any location within the coverage area
(IMO). A typical figure is 10 -7 .
INTELFRET intelligent freight train
INTELLECT New name (2002) for FEI - Electronic Industry Trade Organisation
INTER intermittent or fluctuating (met)
Intercargo International Association of Dry Cargo Shipowners
Intercept Intermodal Concepts in European Passenger Transport
EC DG TREN & DG XIII project.
Interdecadal Between ten years or in groups of ten
International
NAVTEX
Co-ordinated broadcast and automatic reception on 518 kHz
‘of marine safety information by means of narrow-band direct-printing
telegraphy using the English language.’
interoperability The ability to communicate or transfer data between functional
units running on different platforms, implemented in different
technologies, using industry standard or widely accepted data
description and communication protocols.
Intertanko International Association of Independent Tanker Owners
INWAAS Indian WAAS
IOC Initial Operational Capability
For GPS, 24 Block I/II/III satellites operating in assigned orbits and
available for navigation use. Declared in 1994 for GPS, implying
suitability for civil use.
IOC Intergovernmental Oceanographic Commission
IOD issue of data
IODC issue of data, clock (GPS)
IODE issue of data, ephemeris (GPS)
IOG integrated optics gyro (technology beyond MEMS)
IOI imminent obstacle impact (TAWS alert)
IOLT Institue of Logistics and Transport
IOM input/output module
ION Institute of Navigation (US)
ION-CH Swiss Institute of Navigation
Ionosphere Part of atmosphere from ~ 120-350 km
IOP Initial Operations Phase (eg EGNOS)
IOPC International Oil Pollution Compensation Fund
IOR Indian Ocean Region
Inmarsat III satellite at 64.5ºE.
IORS integrated optical rotation sensor
IOSA IATA Operational Safety Audit
IOT&E Initial Operational Test & Evaluation
IOV in-orbit validation
IP initial point (eg fix before run-in to target)
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