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F-3. Commanding

TT&C Applications

F-3.1 Mission Planning

F-3.1.1 Input - Contact Support Plan

type : data transfer

to/from : from Timeline data store

method : DB read

sync/async : sync

timing : none

API standards : SQL, OQL (for implementation)

data arguments : contact_id, support_plan

contact_id - identifier for contact

support_plan - data items describing pass plan

status reply : none

F-3.1.2 Input - Mission requirement schedules

type : data transfer

to/from : from Timeline data store

method : DB read

sync/async : sync

timing : none

API standards : SQL, OQL (for implementation)

data arguments : vehicle_id, mission_requirement_schedule

vehicle_id - identifier for space vehicle

mission_requirement_schedule - data items describing

consolidated mission requirements

status reply : none

F-3.1.3 Input - Orbit maneuver parameters

type : data transfer

to/from : from Timeline data store

method : DB read

sync/async : sync

timing : none

API standards : SQL, OQL (for implementation)

data arguments : vehicle_id, orbit_maneuver_parameters

vehicle_id - identifier for space vehicle

orbit_maneuver_parameters - data items describing

orbit maneuver parameters

status reply : none

F-3.1.4 Input - Attitude maneuver parameters

type : data transfer

to/from : from Timeline data store

method : DB read

sync/async : sync

timing : none

API standards : SQL, OQL (for implementation)

data arguments : vehicle_id, attitude_maneuver_parameters

vehicle_id - identifier for space vehicle

attitude_maneuver_parameters - data items describing

attitude maneuver parameters

status reply : none

F-3.2 Telemetry

F-3.2.1 Input - Telemetry measurands and SV state

type : data transfer

to/from : from Quality Assessed EU Measurands data

store or from Process Telemetry function

method : DB read or discrete message

sync/async : async DB read or async message

timing : max 2 sec. delay

API standards : none

data arguments : none

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-3.2.2 Input - Recommended corrective action

type : data transfer

to/from : from Monitor Telemetry function

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-3.2.3 Output - Commanded state change

type : status

to/from : to Process Telemetry function

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

Support Applications

F-3.3 Comm. and Range Segments

F-3.3.1 Output - Command stream (stream)

type : data transfer (range)

to/from : to Comm. and Range Segments

method : continuous stream

sync/async : sync

timing : 1k - 28Kbps

API standards : ADCCP, SCN-SIS-000508

data arguments : n/a

status reply : trans. ack, errors

Mission Specific Applications

F-3.4 Simulate TT&C Data

F-3.4.1 Output - Command stream (stream)

type : data transfer

to/from : to Comm. and Range Segments

method : continuous stream

sync/async : sync

timing : 1k-28Kbps

API standards : SGLS

data arguments : n/a

status reply : errors

F-3.5 Vehicle Contractor

F-3.5.1 Input - Command requirements

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, command_requirements, TBD

vehicle_id - identifier for space vehicle

command_requirements - data items describing

requirements

status reply : none

F-3.5.2 Input - Vehicle command word structure

type : data transfer

to/from : from vehicle contractor

method : DB read

sync/async : sync

timing : none

API standards : SQL, OQL (for implementation), TBD

data arguments : vehicle_id, word_structure, TBD

vehicle_id - identifier for space vehicle

word_structure - data items describing word structure

status reply : none

F-3.6 External User

F-3.6.1 Input - Command element

type : data transfer

to/from : TBD

method : DB read

sync/async : sync

timing : none

API standards : SQL, OQL (for implementation)

data arguments : contact_id, {command_element}+

contact_id - identifier for contact

command_element - specification of a command

status reply : none

F-3.6.2 Input - Command plan

type : data transfer

to/from : TBD

method : DB read

sync/async : sync

timing : none

API standards : SQL, OQL (for implementation)

data arguments : contact_id, command_plan

contact_id - identifier for contact

command_plan - data items describing command plan

status reply : none