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System issuesSystem issues
System decomposition / Product treeSystem decomposition / Product tree
System specification: function, performance, interfaces, budgetSystem specification: function, performance, interfaces, budget
Work-breakdown structureWork-breakdown structure
SXC system overview 2
Block diagramBlock diagram
SXC system overview 3
System levelsSystem levels
SYSTEM
SUBSYSTEM SUBSYSTEMSUBSYSTEM
UNITUNIT UNIT
SPACECRAFTCONSORTIUM
SXC system overview 4
SXC systemSXC system
DetectorGround segment
Spectrum-XCalorimeter
UNITUNIT
UNIT
UNITUNIT
UNIT
Telescope
UNITUNIT
UNIT
SXC system overview 5
SXC product tree (1)SXC product tree (1)
11 SXC SXC instrumentinstrument1.11.1 SXC detectorSXC detector
1.1.11.1.1 detector subsystem hardwaredetector subsystem hardware1.1.1.11.1.1.1 IDCIDC1.1.1.21.1.1.2 cryostatcryostat
1.1.1.2.11.1.1.2.1 FEAFEA1.1.1.2.21.1.1.2.2 ADRADR1.1.1.2.31.1.1.2.3 STST1.1.1.2.41.1.1.2.4 ST/JTST/JT
1.1.1.31.1.1.3 AACAAC1.1.1.41.1.1.4 CDECDE1.1.1.51.1.1.5 PSUPSU1.1.1.61.1.1.6 radiatorradiator1.1.1.71.1.1.7 calorimeter arraycalorimeter array1.1.1.81.1.1.8 in-flight calibration sourcein-flight calibration source1.1.1.91.1.1.9 CAPCAP1.1.1.101.1.1.10 CDPCDP1.1.1.111.1.1.11 flight harnessflight harness
1.1.21.1.2 detector subsystem software detector subsystem software1.1.2.11.1.2.1 IDC-softwareIDC-software1.1.2.21.1.2.2 CDP-softwareCDP-software1.1.2.31.1.2.3 cmd/hk databasecmd/hk database
1.1.31.1.3 Ground support equipmentGround support equipment
SXC system overview 6
SXC product tree (2)SXC product tree (2)
• 11 SXC SXC instrumentinstrument
• 1.21.2 SXC telescopeSXC telescope• 1.2.11.2.1 telescope subsystem hardwaretelescope subsystem hardware
• 1.2.1.11.2.1.1 TubeTube• 1.2.1.21.2.1.2 Mirror moduleMirror module• 1.2.1.31.2.1.3 covercover• 1.2.1.41.2.1.4 TACTAC• 1.2.1.51.2.1.5 heatersheaters• 1.2.1.61.2.1.6 thermistorsthermistors• 1.2.1.71.2.1.7 flight harnessflight harness
• 1.2.21.2.2 telescope subsystem software telescope subsystem software• 1.2.2.11.2.2.1 cmd/hk databasecmd/hk database
• 1.2.31.2.3 Ground support equipmentGround support equipment
SXC system overview 7
System issuesSystem issues
• System decomposition / Product treeSystem decomposition / Product tree
• System specification: function, performance, Interfaces, budgetSystem specification: function, performance, Interfaces, budget
• Work-breakdown structureWork-breakdown structure
SXC system overview 8
SXC and SC systemsSXC and SC systems
Spectrum-XCalorimeter
SPACECRAFT
IF specificatieBudgets
Function specificatiePerformance
SXC system overview 9
SXC and SC subsystemsSXC and SC subsystems
SPACECRAFT
Detector
Telescope
Groundsegment
SXC system overview 10
Controlled documentsControlled documents
Controlled: Controlled: agreedagreed between two or more parties. between two or more parties.
Subsystem requirements specificationSubsystem requirements specificationSubsystem to subsystem interface specificationSubsystem to subsystem interface specification• ElectricalElectrical• MechanicalMechanical• AlignmentAlignment• SoftwareSoftware• Resources (mass, power)Resources (mass, power)• etcetcTechnical planningTechnical planning• D&V-planD&V-plan• EMC-planEMC-plan• AIV-planAIV-plan• etcetc
SXC system overview 11
Technical plans follow product treeTechnical plans follow product tree
SYSTEM
SUB SUBSUB
UNITUNIT UNIT
SPACECRAFT
SYSTEMEMC plan
SUBSYSTEMEMC plan
SUBSYSTEMEMC plan
SUBSYSTEMEMC plan
SPACECRAFT
requirements
SXC system overview 12
System issuesSystem issues
• System decomposition / Product treeSystem decomposition / Product tree
• System specification: function, performance, Interfaces, budgetSystem specification: function, performance, Interfaces, budget
• Work-breakdown structure, project organizationWork-breakdown structure, project organization
SXC system overview 13
SXC: work breakdown structureSXC: work breakdown structure
SXC system overview 14
Position of SET in SXC-projectPosition of SET in SXC-project
DetectorGround segment
Spectrum-XCalorimeter
Telescope SpacecraftSET:
PA/QAElectricalMechanicalThermalSoftwareAIV
SXC system overview 15
System engineering System engineering
• The subsystem teams are responsible for their own System The subsystem teams are responsible for their own System Engineering, PA issues, configuration control etc.Engineering, PA issues, configuration control etc.
• The SXC-system engineering team will support subsystem The SXC-system engineering team will support subsystem reviews at reviews at best-effortbest-effort base. base.
• The SXC-system engineering will control interfaces and budgets The SXC-system engineering will control interfaces and budgets external to the subsystems.external to the subsystems.