GSC Sentinel-2 PDGS SRD - emits - ESA

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GSC Sentinel-2 PDGS SRD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-RD-09-0028 page 68 of 204 characters, a proper mix of letters and symbols) and re-authentication after session idletimeouts. S2-PDGS-SEC-090 The PDGS shall implement an authorisation mechanism to manage Sentinel-2 users access towards PDGS systems, application and data. S2-PDGS-SEC-095 The PDGS shall handle all Sentinel-2 users related information according to: EU directives on privacy (Regulation EC No 45/2001) EU Directive [COM(2005)_438 final)] on data retention S2-PDGS-SEC-100 The PDGS shall provide means to handle the provisioning lifecycle of PDGS operators and administrators accounts (from user creation, to deletion) allowing to swiftly update their access profiles as soon as requested. S2-PDGS-SEC-105 The PDGS shall implement a secure authentication policy applicable to operator/administrator access to PDGS systems and applications enforcing secure passwords (min 8 characters, a proper mix of letters and symbols), periodic password changes and account locking after a configurable number of failed login attempts. S2-PDGS-SEC-110 The PDGS shall include the functionality to record system activity and record security relevant events including the relationship between user actions and system activity (logging) for minimum 6 months. S2-PDGS-SEC-115 All PDGS systems exposed to the public Internet shall have enabled and configured an host-based firewall according to the defined and implemented network access control measures. S2-PDGS-SEC-120 The PDHS systems exposed to the public Internet shall have antivirus software installed, enabled, configured and updated as necessary. S2-PDGS-SEC-125 All PDGS operational systems shall apply a well-defined back-up strategy for operating system configuration, applications and data. ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
GSC Sentinel-2 PDGS SRD Issue 1 Revision 2 (draft) - 25.07.2010 GMES-GSEG-EOPG-RD-09-0028 page 69 of 204 5.2 Data Reception (DRX) Requirements 5.2.1 FUNCTIONAL REQUIREMENTS S2-PDGS-DRX-005 The PDGS/DRX function shall be able to acquire through a LEO tracking antenna all the Sentinel-2 spacecrafts data received via the X-Band downlink interface (i.e. the satellite XBS). S2-PDGS-DRX-010 The PDGS/DRX function shall be able to acquire through a GEO pointing antenna all the Sentinel-2 spacecrafts data received via the Ka-Band downlink interface (i.e. via the satellite OCP relayed by EDRS in Ka-Band). S2-PDGS-DRX-015 The PDGS/DRX function shall be able to perform real-time demodulation of the acquired signal and front-end processing of the CCSDS formatted bit-stream down to the ISP extraction. S2-PDGS-DRX-020 The PDGS/DRX function shall be able to perform temporally store all the acquired data (i.e. for contingency management in case of errors on the processing chain). S2-PDGS-DRX-025 The PDGS/DRX function shall be able to perform real-time supply of the acquired ISPs to the DPC function as required for the nominal Level-0 product generation. S2-PDGS-DRX-030 The PDGS/DRX function shall be able to manage two independent X-band downlinks channels and process received Sentinel-2 science data, satellite ancillary data and HKTM data transmitted by the Sentinel-2 satellites (i.e. S2A & S2B) according to the space-toground ICD. S2-PDGS-DRX-035 The PDGS/DRX function shall be able to manage (TBD) independent Ka-band downlink channel(s) and process received Sentinel-2 science data, satellite ancillary data and HKTM data transmitted by the EDRS satellite(s) according to the TBD ICD. S2-PDGS-DRX-040 The PDGS/DRX function shall be able to support the X-band downlink frequency range 8015-8350 MHz ESA UNCLASSIFIED – For Official Use © ESA The copyright of this document is the property of ESA. It is supplied in confidence and shall not be reproduced, copied or communicated to any third party without written permission from ESA.
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Appendix B D O C U M E N T document
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[RD-11] GMES Sentinel-2 Phases B2,
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S2-PDGS-NET-065 The DCN shall provi
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