GSC Sentinel-2 PDGS OCD - Emits - ESA

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The following steps are identified for this operation scenario: GSC Sentinel-2 PDGS OCD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-TN-09-0008 page 300 of 350 1) Activated by the reception of a new FOS PIF, the MPL function looks for the associated mission plan; 2) Alternatively to the previous step, the operator selects for the desired Plan Increment File to be verified in case of manual configuration; 3) The MPL function autonomously (or triggered by the operator) according to the configuration correlates the FOS planning response with the mission plan and verifies that all the planned activities have been scheduled; 4) In case any mission plan request is not scheduled by the FOS, the PDGS/MPL function will alert the operator (e.g. via an e-mail, sms, etc) who will attempt replanning activities. This operation scenario is used as part of the planning activities performed during the mission and it may be activated manually or automatically by the availability of a new FOS Plan Increment File. 6.15.3.5 Automatic Ground Stations Scheduling This scenario stands for the automatic generation of the ground stations scheduling according to the mission planned downlinks vis-à-vis CGS and LGS. All the planned downlinks will result from preliminary planning activities with the FOS and will be acknowledged in the PIF. This operation scenario will include the following steps: 1) Based on a predefined schedule for each ground station (i.e. daily, weekly, etc), the MPL function autonomously triggers the generation of the Acquisition-Schedule-Plan with respect to the planned downlink events of every configured ground-station; 2) The MPL function autonomously identifies the applicable last orbit information (i.e. FOS predicted orbit file and TLE); 3) The MPL function autonomously generates for each configured ground station (CGS or LGS) its scheduling plan containing the events information such as AOS, LOS, satellite TLE events, etc according to the defined interface; 4) In principle the generated Acquisition-Schedule-Plan for every ground-station is autonomously delivered to the MCC function for their official release (cf. section 6.14.3.4). Analogously, the MPL function will autonomously generate the EDRS Booking-Plan based on the OCP scheduled activities by the FOS as defined in the Plan Increment File. The generation of the Booking-Plan will be automatic and compatible with the EDRS capabilities assigned to the Sentinel-2 Mission defined by the EDRS Availability Segments. 6.15.3.6 Planning Statistics Visualisation This scenario accounts for the operator-driven planning statistics generation and visualisation activities. The MPL function generates several statistics parameters on generated mission plan to assess usage of the satellite & the ground resources. ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
GSC Sentinel-2 PDGS OCD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-TN-09-0008 page 301 of 350 This operation scenario allows the understanding of the system capabilities usage and allows evaluation for potential mission scenario evolutions. As such, resources like the MSI usage (i.e. sensing times segments length), on-board memory usage, downlink times, on board data latency, etc. are evaluated and relevant statistics are generated. In this manner, the generation of the mission plan according to different rules can be assessed to see potential bottlenecks, improvements, and in general, aiding the operator and in last instance the POM on a better mission planning definition. 6.16 Mission Performance Assessment (MPA) Operations 6.16.1 PRINCIPLES 6.16.1.1 MPA Decomposition The PDGS Mission Performance Assessment (MPA) function is responsible to verify that the mission requirements are being met. Accordingly, the MPA function will cope with various and different aspects of the mission operations: ‣ Off-line quality control of the MSI production; ‣ Definition of the MSI on-board configuration and calibration; ‣ Definition of the processing and quality control configuration parameters; ‣ End-to-end system performance monitoring. Such activities may require different work-flows definition and involve different teams, therefore the MPA function operations scenarios presented in this section are grouped according to this decomposition. 6.16.1.2 Off-line Quality Control The Off-line Quality Control (OFQC) is responsible of identifying if the mission data quality requirements are being met on the generated production along mission life-time and to monitor the quality indicators trends evolution in time. The OFQC includes the monitoring of instrument response and the generated product data quality at regular intervals to guarantee the timely identification of any instrument or product quality anomaly. As a result of the quality control activities performed during the production generation, the products are annotated with Quality Indicators (QI), which provide the information to assess the suitability of the data for a particular use/application. Therefore the Off-line Quality Control (OFQC) complements and synthesises the On-line Quality Control (OLQC) function results (cf. section 6.4). The Off-line Quality Control is conceived to detect anomalies that cannot be detected by the On-line Quality Control function due to the need of an overall view on the generated production instead of a product-per-product level. ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
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LES LGS Land Equipped Sites Local G
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Table 4-5 Radiometric image quality
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5 PDGS DESIGN GSC Sentinel-2 PDGS O
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○ Effective processing resources
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o preserving integrity of exchanged
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6 DETAILED OPERATIONS CONCEPTS GSC
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GSC Sentinel-2 PDGS OCD - Emits - ESA

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