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 155 of 204<br />
S2-<strong>PDGS</strong>-MPL-180<br />
It shall be possible to constrain the Mission-Plan generated by the <strong>PDGS</strong>/MPL function<br />
according to the following minimum set of parameters configurable separately per<br />
spacecraft:<br />
the MSI sensing segment minimum length<br />
the MSI duty cycle<br />
the XBS duty cycles<br />
the OCP duty cycle<br />
etc<br />
S2-<strong>PDGS</strong>-MPL-185<br />
The <strong>PDGS</strong>/MPL function shall generate the ground-stations Acquisition-Schedule-Plan<br />
including recent (daily) orbit information (i.e. predicted orbit file, TLE, etc.) , and time<br />
segments applicable to the antenna reception and the required front-end processing<br />
activities.<br />
S2-<strong>PDGS</strong>-MPL-190<br />
The <strong>PDGS</strong>/MPL function, as part of the Acquisition-Schedule-Plan generation, shall be<br />
able to manage overlapping CGSs avoiding / minimizing the amount of data duplicated on<br />
them.<br />
S2-<strong>PDGS</strong>-MPL-195<br />
As part of the Mission-Plan generation activities, the <strong>PDGS</strong>/MPL function shall make use<br />
of the spacecraft model to derive the on-board memory usage along the orbit through<br />
including:<br />
the sensor data stream volume (compressed or not) deriving from the imaging plan<br />
and detector/compression configuration<br />
the MMFU occupation / usage (for nominal and NRT entries, FIFO logic) according to<br />
the imaging plan and Downlink-Plan<br />
the MMFU occupation / usage for the HKTM data according to the Downlink-Plan<br />
the MMFU occupation / usage for the Ancillary data according to the Downlink-Plan<br />
S2-<strong>PDGS</strong>-MPL-200<br />
The <strong>PDGS</strong>/MPL function shall be able to optimise the Downlink-Plan by delaying when<br />
appropriate the start of the MSI downlink in order to maximize the volume of data<br />
transmitted to the ground during the visibility window. This functionality shall be activated<br />
as an option.<br />
S2-<strong>PDGS</strong>-MPL-205<br />
The <strong>PDGS</strong>/MPL function shall be able to generate the EDRS effective booking plan to be<br />
forwarded to the EDRS user-segment according to the acknowledged Mission-Plans.<br />
<strong>ESA</strong> UNCLASSIFIED – For Official Use<br />
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