addition, equipment for use by station keeping analysts and for spacecraft subsystem performance monitoring shall be provided in a separate analysis room within the OCC and shall include: of archived data, keyboard/CRT terminals, telemetry displays

system other data processing printer/plotter peripherals. The equipment provided shall be sufficient to allow as well as data station-keeping manoeuvre planning routine

for all satellite

units and

retrieval for trend analysis

analysis and plotting

information stored in the OCC data processing system data base.

4.0 TT&C GROUND CONTROL EQUIPMENT (GCE)

4.1 General Requirements

The TT&C Ground Control Equipment (GCE) shall consist of:

i)

All command, ranging, and telemetry equipment necessary

control and

of the successful for the

management spacecraft throughtout its life.

ii) Auxiliary equipment

recording,

parameters.

enable as required to timing and testing of all

monitoring, operating

Compatibility with the Spacecraft

The GCE supplied shall be compatible in all respects with the command, ranging and telemetry subsystems of the spacecraft.

GCE Functional requirements

Sufficient equipment shall be provided for operation of one (1) spacecraft to the availability requirement stated in paragraph As a minimum, the contractor shall be required to provide the equipment described in the remainder of this section.

1.3.

4.2 Ground Control Equipment

4.2.1 Command Generator

format

Equipment shall be provided to generate

be provided to generate and encode spacecraft commands and modulate the uplink command carrier in compatible with the satellite command subsystem.

The command generator shall manual mode and

The

have shall command

a

transmit and verify commands in mode of computer-controlled a

the shall interface with generator

recover telemetry processing equipment to

command verification data for display on the front panel.

operation.

4.2.2 Range Measurement

Equipment to

the via range

spacecraft command, ranging and telemetry system shall be provided. For the ranging technique used the Contractor shall show by analysis that the sum of errors

3

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