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Conversion
Transposition of a NOTAM received in the old format in the correctly formatted ICAO NOTAM.
Conversion Training
Provision of knowledge and skills appropriate to a change in job category, environment and/or systems.
Co-ordinate Conversion
The act of changing the co-ordinate values from one system to another (e.g. from geodetic co-ordinates (latitude and longitude) to Universal Transverse Mercator grid co-ordinates.
Co-ordination Sector List
A list of sectors that must co-ordinates the flight.
Core Area
That part of the airspace of the ECAC States characterised by high density and/or high complexity air traffic and comprising as a minimum the designated FIRs/UIRs of Belgium/Luxembourg, France, Germany, Italy, The Netherlands, Switzerland and the United Kingdom.
Core Requirements for ATM Working Positions
Methods and tools for working position development. The CORE Project is aimed at supporting the development of ATM in the ECAC States through providing methods and material to consolidate and disseminate the requirements capture, design, specification, development and evaluation of controller working positions for European ATM. The CORE Project is designed to be ESCAPE compatible.
Core Tasks
Tasks which involve the design and provision of a product and/or service.
Correct Mode A
For each plot message an expected mode A code is determined in the mode A reconstruction process and each plot is assigned to one of the following three possible states for mode A correctness: a) Correct. Expected mode A is available and mode A code of the plot is present and is equal to the expected mode A code; b) Incorrect. Expected mode A is available and mode A code of the plot is present and is not equal to the expected mode A code; c) Undetermined. "Expected mode A is not available" or "mode A code of the plot is absent' or "the plot is not supposed to have mode A correctness (i.e., PRI and MISS plots)".
Correct Mode C
For each plot message an expected altitude is determined in the altitude reconstruction process and each plot is assigned to one of the following three possible states for mode C correctness: a) Correct. Expected altitude is available and mode C code of the plot is present and in the scope and is equal to the expected altitude; b) Incorrect. Expected altitude is available and mode C code of the plot is present and in the scope and is not equal to the expected altitude; b) Undetermined. "Expected altitude is not available" or "mode C code of the plot is absent or out of scope" or "the plot is not supposed to have mode C correctness (i.e., PRI and MISS plots)".
Correlated Errors
See Systematic Errors
Correlated Tracks
Tracks which have been correlated with a flight plan. Sometimes this term applies only to tracks for which the Mode A code has been correlated with a Call Sign in the Code/Call-Sign list (i.e. Flight Plan Association).