GSC Sentinel-2 PDGS SRD - emits - ESA

ESA UNCLASSIFIED – For Official Use
GSC Sentinel-2 PDGS SRD
Issue 1 Revision 2 (draft) - 25.07.2010
GMES-GSEG-EOPG-RD-09-0028
page 157 of 204
S2-PDGS-MPL-245
The PDGS/MPL function shall be able to apply the required margins to every MSI sensing
segment ensuring the zone to be imaged is effectively acquired through all spectral bands
of the MSI detectors, as part of the Image-Acquisition-Plan generation activities.
S2-PDGS-MPL-250
The PDGS/MPL function shall support the SPF-PIF planning protocol according to the
applicable ICDs.
S2-PDGS-MPL-255
The PDGS/MPL function shall be able to generate a Mission-Plan with the required
commanding activities, syntax and semantics according to the applicable ICD settled with
the FOS.
S2-PDGS-MPL-260
The PDGS/MPL function shall be able to generate the EDRS Booking-Plan with the
required activities, syntax and semantics according to the applicable ICD settled with the
EDRS exploitation segment.
S2-PDGS-MPL-265
The PDGS/MPL function shall allow the operator to characterise the CGS/LGS resources
allocated for the Sentinel-2 Mission. The CGS/LGS Resources Characterisation file shall
contain at least for each X-Band and Ka-Band station:
S2 spacecraft (S2A, S2B or both)
location
visibility mask
precedence order
reception roles (Nominal, NRT, RT, HKTM, etc)
etc.
S2-PDGS-MPL-270
The PDGS/MPL function shall be able to ingest two distinct databases of constraints
applicable to the X-Band usage of each satellite and including:
A list of X-Band Silent Segments: a static pattern of time segments with an N-cycles
repeatability during which the XBS shall not be operating due to conflicting RF
simultaneous operations with other Sentinel satellites;
A list of Station Unavailability Segments: a static pattern of time segments with an N-
cycles repeatability during which downlink activities to a given ground-station are not
permitted due to conflicting acquisitions by other Sentinel satellites requiring the station
resources (e.g. antenna) simultaneously;
Both databases shall be an external static configuration input to the MPL function
according to a TBD ICD.
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