GSC Sentinel-2 PDGS OCD - Emits - ESA

GSC Sentinel-2 PDGS OCD
Issue 1 Revision 2 (draft) - 25.07.2010
GMES-GSEG-EOPG-TN-09-0008
page 66 of 350
4.2 Operation Context
4.2.1 MANAGEMENT
In general and throughout this document and all associated PDGS documentation of
technical content such as the SRD, the terminology “PDGS Operation Manager” (POM) (e.g.
when used as an interface to the PDGS) does not strictly relate to any specific body or person
but rather symbolises the management authority required at any level of the PDGS end-toend
operations to decide on its main leverages and to get appropriate visibility on the mission
performance in return enabling management.
4.2.1.1 HLOP Implementation
Based on the mission HLOP provided by the MMA, the POM will be responsible for deriving
PDGS operation plans and ensuring their related implementation covering the planning of
payload acquisition and recovery on-ground, EDRS usage, production plans, archive plans,
etc. The HLOP is hence considered an applicable to the POM.
During the commissioning-phase of each spacecraft, the HLOP is superseded by the S2CP
defined for that spacecraft.
Vis-à-vis the PDGS, the HLOP will define:
○ The mission operation scenario applicable to the Sentinel-2 constellation covering all
global mission operation parameters such as:
o Orbital definitions for the satellite constellation;
o Definitions of the PDGS CGS network and associated operational constraints
(e.g. priorities, inter-sentinel conflict management, etc);
o MSI nominal data acquisition and recovery rules at the PDGS CGS including
the definition of priority zones promoted for NRT timeliness as reply to the DAP
and specific balancing between the constellation spacecrafts;
o The definition of specific acquisitions campaigns and their assimilation within
the nominal mission plan;
o Definition of the Sentinel-2 LGS network and associated planning rules vis-à-vis
LGS entitled to X-Band real-time data reception;
o The definition of the usage of EDRS provided capabilities for data recovery
from the spacecrafts via the OCP;
○ The PDGS data-processing, circulation and archiving plans as responding to the
GSC/DAP or the commissioning phase requirements and within the PDGS capabilities
and available resources spread in the ground-stations and centres network;
○ The list of PDGS interfaces and services to be activated during the mission phase
applicable to the plans;
○ The definition of high-level PDGS performance targets and product quality in-line with
the capabilities of the mission.
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