TNAG-2109-FCO40-3008-Outer-Space-Act-1986-extension-to-Hong-Kong-1990 — Page 114

The operator is to be

specified in engineering units. notified of any data values violating the limits.

5.2.2 Range Azimuth and Elevation Data

software to measure

The system shall include GCE control

and record the

the azimuth and the range to the satellite, elevation angles. Ranging operations shall be initiated by operator command to collect a defined burst of data.

A burst of data is defined as a set of points, each point consisting of a range, azimuth angle, and elevation angle, The data collected over some pre-defined time interval. points shall each be time-tagged and identified by data

The range shall be type, and satellite.

calculated in metric units (metres or kilometres) and the azimuth elevation angles measured to an accuracy commensurate with the overall ranging accuracy requirements.

5.2.3 Satellite Commanding

and

The system shall include software to control the GCE for the execution of satellite commands to provide ground control of the satellite. The software shall perform any status or data value checks necessary to prevent execution of command under unsuitable or dangerous conditions. addition, it shall recognize any hazardous

any hazardous commands provide appropriate warnings to the operator to minimize the probability of operator error.

5.2.4 Operator Controlled Commands

In and

The system shall have the capability to transmit, verify, and execute any single satellite command under operator control. It shall also include a no-verify capability for conditions where verification is impossible or

or speed of operation is critical.

5.2.5 Special Command Processes

command

The system shall include, if necessary, the facility to execute

to pre-programmed satellite

sequences perform operations

operations which are time critical or require monitoring of satellite data or status during the process. If long or complex complex commanding processes are necessary for satellite control, the system shall provide execute command lists the ability to create, edit, and under operator control.

5.2.6 Satellite Command Logging

The system shall maintain a log of all satellite commands executed through the computer system. The log shall be generated automatically as commands are executed and shall be stored in a manner suitable for on-line retrieval and

Α for archiving.

to

a print

history

capability

of

9.

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