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.