1. CCSDS Spacecraft Monitor & Control Services Concept CCSDS Spacecraft Monitor & Control Working Group (SM&C WG) 6TH INTERNATIONAL SYMPOSIUM REDUCING THE COSTS OF SPACECRAFT GROUND SYSTEMS AND OPERATIONS (RCSGSO) ESOC, Darmstadt 14-17 June 2005

2. RCSGSO 2005 2 SM&C Membership  ESA Mario Merri (chairman), Michael Schmidt, Alessandro ErcolaniMario Merri (chairman), Michael Schmidt, Alessandro Ercolani Ivan Dankiewicz, Sam CooperIvan Dankiewicz, Sam Cooper  BNSC Roger Thompson (deputy chairman), Brendan HarnettRoger Thompson (deputy chairman), Brendan Harnett  CNES Brigitte Béhal, Erwann PoupartBrigitte Béhal, Erwann Poupart  CSA Philip MelansonPhilip Melanson  DLR Harald HofmannHarald Hofmann  INPE Paulo Giácomo MilaniPaulo Giácomo Milani  JAXA Takahiro YamadaTakahiro Yamada  NASA/GSFC Donald Custis Lokerson, Freemon JohnsonDonald Custis Lokerson, Freemon Johnson  NASA/JPL Amalaye Oyake, Peter ShamesAmalaye Oyake, Peter Shames WG initiated in Dec 2003 9 Active Space Agencies!

3. RCSGSO 2005 3 SM&C High Level Goals  Standardisation of interfaces for SM&C Reduce cost of Flight Components and Ground Segment InfrastructureReduce cost of Flight Components and Ground Segment Infrastructure Enable “plug and play” architecture with components from different Agencies, systems and suppliersEnable “plug and play” architecture with components from different Agencies, systems and suppliers  Enable Mission Economies through Interoperability with partner systems and infrastructureInteroperability with partner systems and infrastructure Risk reduction through re-use of systems and operational concepts: increased reliabilityRisk reduction through re-use of systems and operational concepts: increased reliability Facilitation of Generic Software Infrastructure (On-board and Ground-based)Facilitation of Generic Software Infrastructure (On-board and Ground-based) Application of a common M&C Approach throughout all mission phasesApplication of a common M&C Approach throughout all mission phases Application of a common M&C Approach to other domains (Ground Stations, Control and Test Centres, etc.)Application of a common M&C Approach to other domains (Ground Stations, Control and Test Centres, etc.)

4. RCSGSO 2005 4 SM&C Scope  Operational concept definition of an operational concept that covers a set of standard operations activities related to the monitoring and control of both ground and space segmentsdefinition of an operational concept that covers a set of standard operations activities related to the monitoring and control of both ground and space segments  SM&C Application Services definition of an extensible set of services to support the operational concept together with its information model and behavioursdefinition of an extensible set of services to support the operational concept together with its information model and behaviours  Common SM&C Services identification of a common SM&C pattern that can be applied on ground and in space, a common SM&C protocol for interoperabilityidentification of a common SM&C pattern that can be applied on ground and in space, a common SM&C protocol for interoperability  Application-layer information definition of the standard information set to be exchanged for SM&C purposesdefinition of the standard information set to be exchanged for SM&C purposes

5. RCSGSO 2005 5 SM&C Playground OPERATION CONTROL CENTRE PAYLOAD CONTROL CENTRE Virtual S/C M&C Path Virtual Payload M&C Path Virtual Ground Station M&C Path GROUND STATION     Actual M&C Path

6. RCSGSO 2005 6 SM&C: a Service Based Architecture  Popular with distributed and web based systems  Consumer (client) unaware of providers implementation  Defines the interface as a “contract”

7. RCSGSO 2005 7 Identified SM&C Services ServiceLayerDescription SM&C Common Common Protocol: Directives, Events, Reports Common Service: Common interactions, History, Security, Configuration, Service Directory SM&C Core Application Parameters: calibration, monitoring, aggregation, configuration, statistics, … Commands: send, validate, verify, … Alerts: notify, … TimeApplication Time: correlation, set, … LocationApplication Position: Tracking, ranging, and onboard position determination, … AutomationApplication Automated Procedure/Function: control (start, stop), progress reporting, … SchedulingApplication Schedule: managing (e.g. load, clear, shift, …), control (e.g. start, suspend, resume, …) PlanningApplication Plan: managing (e.g. add/delete/modify activity, …), control (e.g. validate/generate plan, allocate authority…) Software Management Application Software versioning, patching, dumping and releasing, … Data Product Manag. Application File/Product management and transfer, both ground based and onboard Flight Dynamics Application Orbit/attitude determination/propagation, manoeuvre preparation, … InteractionApplication Asynchronous (human) operator: notification and interaction, … High Priority

8. RCSGSO 2005 8 SM&C Service Overview

9. RCSGSO 2005 9 SM&C Service Layering SOIS: Spacecraft On-Board Interface Services Ground Segment Flight Segment Application SM&C Services Ground Services: WSDL/SOAP/CORBA SLS: Space Link Services SOIS: On-board Services

10. RCSGSO 2005 10 SM&C Services SLS Services SLS Adapter SM&C Service Interfaces Service Client Applications Service Provider Applications SM&C Common Protocol Service Service Message Protocol SM&C Common Protocol Service Service Access Points SM&C Application Services SOAP SOAP Adapter SOIS Services SOIS Adapter CORBA CORBA Adapter

11. RCSGSO 2005 11 Service Client Applications Space Link Services SM&C Services Service Client Applications Service Provider Applications Communications Service PUS Packet Utilization Standard (PUS) Adapter Interoperable Interface Communications Service Service Access Points SM&C Application Services (PUS Adapters) SM&C Application Services (PUS Adapters) PUS Adapter PUS Services

12. RCSGSO 2005 12 Service Tunnelling

13. RCSGSO 2005 13 SM&C Protocol Trigger Execution of Target Send Directive to Target Confirmed or Unconfirmed Immediate, triggered, or timed Read State of Target Confirmed or Unconfirmed Send Indication to Controller Confirmed or Unconfirmed Send Event to Controller Confirmed or Unconfirmed

14. RCSGSO 2005 14 Common SM&C Service: standard pattern for SM&C Services Service Layer Service Provider Service Consumer HCI Displays Other Applications Service Configuration Database Service History Archive Service Editor Operations Preparation Invoke Archive History Service Directory Publish Lookup Configure Edit Active Service Interface

15. RCSGSO 2005 15 SM&C Prototype SM&C Services ESA MCS CNES MCS NASA MCS JPL MCS JAXA MCS … Legacy MCS Legacy S/C (Simulator) ESA S/C CNES S/C NASA S/C JPL S/C JAXA S/C … Any MCS CCSDS TM/TC SLE Any S/C Sim CCSDS TM/TC SLE Adaptor SM&C Services Adaptor SM&C Services Ground M&C Simulator Adaptor Specific Adaptor SM&C API MCS 1 Adaptor SIM Ocean MCS 2 Adaptor ? ? SM&C ? ? = Agency proprietary services

16. RCSGSO 2005 16 Modularity and Flexibility

17. RCSGSO 2005 17 XML Telemetry and Command Exchange (XTCE)  Object Management Group (OMG) standard developed by  European Space Agency  US Air force/Mission Operations (Lockheed Martin)  Boeing Communications & Satellites  NASA & JPL  XML-based non-proprietary standard format for TM/TC Operational DB  Reduces human error, ambiguities, confusion, and lost time in difficult, sometimes lossy, conversions between systems  Being adopted by CCSDS via Agency Review currently run by SM&C WG

18. RCSGSO 2005 18 Why Operational Database Standardization? AIV: Assembly, Integration Verification DB: Database EGSE: Electrical Ground System Equipment FDS: Flight Dynamics System MCS: Mission Control System MPS: Mission Planning System ODB: Operational Database PGS: Procedure Generation System SDB: Source Database SIM: Spacecraft Simulator  OPERATIONS ODB MCS FDS MPS PGS1 SIM Editors1 SDB Editors2 PGS1 EGSE AIV   Proprietary Formats           NOW  Standard Formats (XTCE)           FUTURE

19. RCSGSO 2005 19 SM&C WG Status & Outlook  Work done: Final SM&C Green BookFinal SM&C Green Book Advanced Drafts of High Priority Red BooksAdvanced Drafts of High Priority Red Books  SM&C Protocol (NASA/JPL)  SM&C Common Service (ESA)  SM&C Core Service (ESA) Initial drafts of other Red BooksInitial drafts of other Red Books  SM&C Time Service (CSA)  SM&C Remote Software Management (BNSC)  SM&C Automation Service (CNES) First CCSDS Agency review of XTCEFirst CCSDS Agency review of XTCE  Future work: Finalisation Red BooksFinalisation Red Books Prototype High Priority Red BooksPrototype High Priority Red Books Second CCSDS Agency review of XTCE (starts Sep 05)Second CCSDS Agency review of XTCE (starts Sep 05)