GSC Sentinel-2 PDGS OCD - Emits - ESA

ESA UNCLASSIFIED – For Official Use
GSC Sentinel-2 PDGS OCD
Issue 1 Revision 2 (draft) - 25.07.2010
GMES-GSEG-EOPG-TN-09-0008
page 227 of 350
quality control reports for the Support Desk, Cal/Val reports (including requests for
critical calibration parameters update), Processors Upgrade Requests (including
verification results), processor upgrades requests and End-to-End System
Performance reports. MPA gets from the POM (via DC function) mission requirements
updates and on-demand quality control checks coming from the Support Desk;
o The MPA feeds the CDS with quality control reports according to [AD-02] via the DC
function;
o The MPA gets products via the DAG function for performing Off-line Quality Control
and Cal/Val tasks;
o The MPA has access to a collocated DPC function embedding IDP and OLQC
functions to perform processors validation activities;
o The MPA has access to all POD data via the MCC and DC functions for performing
Off-line Quality Control activities;
o The MPA provides on-board and on-ground configuration data (OBCD and OGCD)
and Cal/Val ad-hoc data acquisitions requests to the MCC function. MPA gets from
MCC a reporting of the requests status;
o The MPA has an operational interface with the RP function for the validation of the
instrument data processing and on-line quality control processors before deployment
of a new version;
o The MPA function supports interactive access and batch requests to the FOS EDDS
for the retrieval of decoded HKTM data (packets or parameters in engineering values)
needed for the investigation of anomalies and / or auxiliary data processing activities;
5.2.4.4 Monitoring & Control (M&C) Function
5.2.4.4.1 Function Objectives and High-Level Description
The Monitoring & Control function is responsible at PDGS centre level for ensuring that all
available resources (i.e. hardware, software and local network) required for the PDGS
nominal operations are available, ready and running under expected conditions. M&C
function allows detecting anomalies that a priori may involve working problems in the
functional chain or help finding the cause of any malfunction of any PDGS function.
As such, it is in charge of:
○ Monitor physical resources (i.e. HW, network links, etc.) correct behaviour according to
expected threshold ranges (e.g. free disk space thresholds);
○ Monitor other PDGS functions key running processes to assess in real time their
working status;
○ Raising alarms to operators when monitored items are not under expected conditions.
Alarms notification mechanisms to operators are configured according to error severity;
○ Provide a single and harmonized logs view point for all PDGS functions. M&C function
undertakes others PDGS functions logs messages and visualises them according to
different configuration criteria;
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