31 May 2022 to 2 June 2022
WebEx
Europe/Amsterdam timezone

Space to Ground Interface Control Model

2 Jun 2022, 15:00
30m
WebEx

WebEx

Speaker

Mr Miguel Rey (Vision Space)

Description

The Space to Ground Interface Control Documents (S2GICD) and it's applicable documents define the data interfaces between each the satellites and their instruments to the ground segment, embeddingground stations, the Flight Operation Segment as well as the Payload Ground Segment.

It is the central part for the monitoring and control, data processing and distribution of monitoring and control data received from the satellite. This document is typically sent to the Flight OperatingSegment (FOS) and while some of this information is indeed unique, most of it is in fact already covered by the existing ground segment functionality and require no development. This information includes Ground Station Link Geometry, Uplink, Downlink and Rangingcharacteristics, Virtual Channel, MAP ID, Spacecraft ID, etc.

To a degree the effort to setup the ground segment from these documents has already been mitigated by having the satellite provider deliver the SCOS MIB which contains the telemetry and telecommandpacket definitions. Nevertheless, plenty of the available information is later mapped into the Monitoring and Control System Software Requirement Specification (MCSSRS) and only eventually into configuration variables of the control system.

Currently, ESA is starting the ground segment of each satellite from an empty baseline, taking the S2GICD and ancillary documents, and to generate the SRS, to be later translated into proposals,documentation, and finally code and configuration change.

This model does not scale, is becoming outdated, and does not fit current needs of missions that need to be ready in ever shorter periods and cannot wait for and MCS, which only gets delivered everyhalf a year. To make things fast with the current setup, would amount to an enormous cost unless the effort of deployment is itself optimized. We propose to precisely do that, by taking information available from existing models, we will create the initialversion of the ground segment, ready to be developed upon. This is usually the first delivery by industry when preparing for a launch, and we believe we can do it automatically using MBSE.

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