SCOS 2000

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The Satellite Control and Operation System 2000 (SCOS-2000) is the generic satellite Mission Control System (MCS) software infrastructure developed and maintained by the European Space Agency (ESA/ESOC) in collaboration with European industry and deployed for missions such as Radarsat 2, XMM-Newton, INTEGRAL, MSG, Cryosat, Mars Express, Venus Express, GOCE, Herschel, Planck, Rosetta, Cryosat-II, Galileo, MetOp-A, MetOp-B and LISA Pathfinder. Upcoming missions that will deploy SCOS-2000 include Aeolus, SWARM, Gaia, GMES Sentinel, SOLAR and Bepi-Colombo.

It is a generic system, tailored for the specific needs of each mission. The core of the system provides comprehensive telemetry processing, manual and automatic commanding, on-board software management, mission archive and web-based data distribution.

Functionality[edit]

A MCS provides the means for the satellite operators to monitor and control one or more satellites. The MCS does not provide science data processing, which is typically performed at a dedicated science centre.

Commanding Chain[edit]

The commanding chain is based on the CCSDS Frame standard. Command stacks can be loaded either manually or automatically, and are validated against predefined constraints prior to release.

Telemetry Chain[edit]

The telemetry chain is based on the CCSDS Frame and the CCSDS Packet standards. CCSDS frames are received from the ground station through a Space Link Extension (SLE) interface and demultiplexed into telemetry packets.

Typical functions performed on receipt of a telemetry packet include checking the parameters are within range (hard and soft limit checking) and validation of sent telecommands.

Archive[edit]

The system provides fully automated packet and parameter archives, capable of managing the high data volumes of modern missions.

Licensing[edit]

SCOS-2000 is owned and licensed by ESA. It is available to European space industry under different licensing terms. Products developed based on SCOS-2000 can be exported to non-European countries.

History[edit]

The development timeline of SCOS-2000 has been;

  • Release 1.0.
  • Release 2.2.
  • Release 2.3.
  • Release 2.3e.
  • Release 2.4.
  • Release 2.4.1.
  • Release 3.0.
  • Release 3.1.
  • Release 4.0.
  • Release 5.0.

Comparison with earlier systems[edit]

SCOS-2000 is the latest in a line of generic mission control systems developed by ESA. Some of the source code is based on ESA's previous control system, called SCOS-II. SCOS-II itself was not widely used, with the Huygens and SOHO missions being the main users.

Spin Offs[edit]

SCOS-2000 has been used as a core part of the GSMC (Ground Station Monitoring and Control)

Eutelsat NEO is also based on SCOS-2000

Suppliers[edit]

References[edit]