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F-2. Telemetry

TT&C Applications

F-2.1 Mission Planning

F-2.1.1 Output - Telemetry data (maneuver-related parameters)

type : data transfer

to/from : to Quality Assessed EU Measurands data store or to

Process Commands and Determine Command

Performance functions

method : DB write or discrete message

sync/async : async DB write or async message

timing : max 2 sec. delay

API standards : SQL, OQL (for implementation)

data arguments : stream_id {id, value}+

stream_id - identifier for telemetry stream

id - identifier for telemetry measurand

value - value for telemetry measurand

status reply : none

F-2.2 Commanding

F-2.2.1 Input - Commanded State Change

type : status

to/from : from Determine Command Performance

method : discrete message

sync/async : async

timing : max 2 sec. delay

API standards : none

data arguments : command_id {status_id value}+

command_id - identifier for command being evaluated

status_id - identifier for status measurand

value - value for status measurand

status reply : none

F-2.2.2 Output - Recommended corrective action

type : data transfer

to/from : to Define Commands and Procedures

method : discrete message

sync/async : async

timing : none

API standards : none

data arguments : message_text

message_text - text describing recommended corrective action

status reply : none

F-2.2.3 Output - Telemetry data and SV state

type : data transfer

to/from : to Quality Assessed EU Measurands data store or to

Process Commands and Determine Command

Performance functions

method : DB write or discrete message

sync/async : async DB write or async message

timing : max 2 sec. delay

API standards : SQL, OQL (for implementation)

data arguments : stream_id {id, value}+

stream_id - identifier for telemetry stream

id - identifier for telemetry measurand

value - value for telemetry measurand

status reply : none

F-2.3 Orbit

F-2.3.1 Output - Telemetry data (navigation data)

type : data transfer

to/from : to Quality Assessed EU Measurands data store

method : DB write or discrete message

sync/async : sync DB write or async message

timing : none, unless real-time orbit requirement

API standards : SQL, OQL (for implementation)

data arguments : stream_id {id, value}+

stream_id - identifier for telemetry stream

id - identifier for telemetry measurand

value - value for telemetry measurand

status reply : none

F-2.4 Attitude

F-2.4.1 Output - Raw attitude data and sensor status

type : data transfer

to/from : to Quality Assessed EU Measurands data store

method : DB write or discrete message

sync/async : async DB write or async message

timing : none, unless real-time attitude requirements

API standards : SQL, OQL (for implementation)

data arguments : stream_id {id, value}+

stream_id - identifier for telemetry stream

id - identifier for telemetry measurand

value - value for telemetry measurand

status reply : none

Support Applications

F-2.5 Comm. and Range Segments

F-2.5.1 Input - Serial telemetry stream

type : data transfer

to/from : from Comm and Range Segments

method : continuous stream

sync/async : sync

timing : telemetry rate (range)

API standards : IRIG

data arguments : n/a

status reply : none

Mission Specific Applications

F-2.6 Simulate TT&C Data

F-2.6.1 Input - Serial PCM stream

type : data transfer

to/from : from simulator

method : continuous stream

sync/async : sync

timing : none

API standards : IRIG

data arguments : n/a

status reply : none

F-2.7 Vehicle Contractor

F-2.7.1 Input - SV Data

type : data transfer

to/from : from vehicle contractor

method : DB read

sync/async : sync

timing : none

API standards : SQL, OQL (for implementation)

data arguments : vehicle_id, sv_data, TBD

vehicle_id - identifier for space vehicle

sv_data - data items describing sv telemetry

status reply : none