satellite commanding for any specified time interval shall also be included. The information logged shall include the satellite identification, time of execution, and sufficient information to positively identify the function performed by the command.
as
The system shall provide a mechanism that will allow the
the monitor the
of to
operation operator
progress commands are transmitted and executed.
5.2.7 Data Storage and Retrieval
5.3
a form
Data collected through the data acquisition system shall be stored on a disc or similar storage medium in suitable for on-line retrieval.
The data
to be stored
shall
PCM include
facility
telemetry,
that the
attitude, range and AZ/EL data and the satellite command shall have a log. The telemetry processing temporary back-log storage capability for
capability for the processed failure) data in the event (e.g. equipment archival facility cannot immediately incorporate the data
data shall into
be its
Back-log on-line storage.
the on-line storage upon automatically incorporated into the on-line
An archiving resumption of normal telemetry archiving.
telemetry data may system whereby PCM
be dumped to, a
long-term storage medium (e.g. magnetic tape) to maintain a A directory permanent history shall also be provided.
that the location of
shall be created and maintained so data for specified time interval shall be available to the system operator.
If system backup requirements are met by a dual computer system, all stored and archived data is to be accessible from both computers.
Data Displays
The system shall have the capability to display real-time data, in alphanumeric format as data is acquired and to display data accessed through the data retrieval system in All data shall be graphical or alphanumeric formats. displayed in SI units.
5.3.1 Real Time Alphanumeric Displays
PCM
and
AZ/EL
The system shall provide real-time alphanumeric displays of data. The attitude, telemetry,
range
If the display the maximum
displays shall update as data is available. update speed is constrained by the hardware, interval between updates for telemetry data shall be twenty (20) seconds.
The display formats shall be fixed and shall be designed for readability with titles describing the displayed data and with data grouped on the display in a logical fashion
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