GSC Sentinel-2 PDGS SRD - emits - ESA
GSC Sentinel-2 PDGS SRD - emits - ESA
GSC Sentinel-2 PDGS SRD - emits - ESA
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<strong>GSC</strong> <strong>Sentinel</strong>-2 <strong>PDGS</strong> <strong>SRD</strong><br />
Issue 1 Revision 2 (draft) - 25.07.2010<br />
GMES-GSEG-EOPG-RD-09-0028<br />
page 38 of 204<br />
5 GMES SENTINEL-2 PGDS REQUIREMENTS<br />
This chapter defines the applicable requirements to the <strong>Sentinel</strong>-2 <strong>PDGS</strong>.<br />
5.1 <strong>PDGS</strong> System-Level Requirements<br />
5.1.1 FUNCTIONAL REQUIREMENTS<br />
S2-<strong>PDGS</strong>-SYS-005<br />
The <strong>PDGS</strong> shall be able to receive all the MSI, Ancillary and HKTM data downlinked by<br />
the <strong>Sentinel</strong>-2 satellite(s) and to mechanically generate HKTM Level-0 products and MSI<br />
Level-0, -1A, -1B, -1C and TCI products in a systematic manner.<br />
S2-<strong>PDGS</strong>-SYS-010<br />
The <strong>PDGS</strong> shall be able to receive the data downlinked from the <strong>Sentinel</strong>-2 spacecrafts by<br />
means of a network of Core Ground Stations (CGS) and to safeguard the raw data in realtime<br />
in the station local storage archive.<br />
S2-<strong>PDGS</strong>-SYS-015<br />
The <strong>PDGS</strong> network of CGSs shall be able to receive the data downlinked from the<br />
<strong>Sentinel</strong>-2 satellites either:<br />
in X-Band directly from the spacecrafts using LEO tracking X-Band antennas;<br />
in Ka-Band using GEO pointing Ka-Band EDRS-compatible antennas receiving the<br />
satellite data transmitted by the OCP and relayed via the EDRS system in Ka-Band.<br />
S2-<strong>PDGS</strong>-SYS-020<br />
The <strong>PDGS</strong> shall be able to serve the mission data and the associated satellite ancillary<br />
data from the <strong>Sentinel</strong>-2 spacecrafts to a network of third-party operated X-Band stations -<br />
Local Ground Stations (LGS) - under direct visibility. All the data served to the LGSs shall<br />
systematically be downlinked in addition to the CGS network.<br />
S2-<strong>PDGS</strong>-SYS-025<br />
The <strong>PDGS</strong> shall ensure that the satellite ancillary data downlinked at every ground-station<br />
(CGS or LGS) overlaps in time with the MSI data downlinked within the same pass.<br />
S2-<strong>PDGS</strong>-SYS-030<br />
The <strong>PDGS</strong> shall be able to process, package, and deposit at the FOS interface the X-<br />
Band HKTM data received at the CGS network, corresponding to the data acquired onboard<br />
since the last downlink.<br />
<strong>ESA</strong> UNCLASSIFIED – For Official Use<br />
© <strong>ESA</strong><br />
The copyright of this document is the property of <strong>ESA</strong>. It is supplied in confidence and shall not be reproduced, copied or<br />
communicated to any third party without written permission from <strong>ESA</strong>.
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