GSC Sentinel-2 PDGS STBD - emits - ESA

GSC Sentinel-2 PDGS STBDIssue 1 Revision 2 (draft) - 25.07.2010GMES-GSEG-EOPG-TN-09-0031page 23 of 603.3.2.1 Level-0 Processing3.3.2.1.1 MSI Telemetry Analysis: Parallelization by DetectorThe MSI Telemetry Analysis is performed within the GPP algorithm by the Ana_TM-Imagefunction of the Ana_TM IAS.As showed in Figure 7, Ana_TM-Image function can be parallelised by detector, then 12times. The processing can be run in real-time (i.e. with an effective I/O rate of 520Mbps), aslong as the data are received.Figure 7: possible processing parallelisation in Ana_TM Image3.3.2.1.2 Satellite Ancillary Telemetry Analysis: no parallelizationThe Satellite Ancillary Telemetry Analysis is performed within the GPP algorithm by theAna_TM-SAD function of the Ana_TM IAS. This processing step cannot be parallelisedbecause Satellite Ancillary Telemetry is expected to be transmitted in one stream but it canbe run in real-time (i.e. with an effective I/O rate of 520Mbps), as long as the data arereceived.ESA UNCLASSIFIED – For Official Use© ESAThe copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied orcommunicated to any third party without written permission from ESA.