High-level Introduction to MTG Ground Segment

Transcription

1 High-level Introduction to MTG Ground Segment Workshop on NWC Applications using MTG-IRS Fausto Roveda MTG Data Processing System Facility Manager 1

2 Summary of the Presentation Ground Segment Overview Payload Data Processing Systems Multi-Mission Elements Ground Segment Technical Challenges Availability and Timeliness; Data rates and Volumes; Estimated Computational Needs; Status of Facility Procurements

3 The MTG System Space Segment Launch and LEOP Service Ground Segment

4 MTG Ground Segment Context Ground Stations Dissemination MTG GS Major Components: Ground Stations Facilities (TTCF, MDAF) Mission Operation Facility (MOF) Data Processing Facilities (IDPF, L2PF) Multi-Mission Elements (MMEs) Note: Facility = hardware + software Mission Operation Data Processing Archive and Retrieval EUMETSAT Headquarter SAF Network

5 MTG Payload Data Processing Systems Off-line Environments (Analysis & Reporting, Developoment) Off-line Buffer Raw Data Instrument Data Processing Facility (Level-1) Level-2 Processing Facility Data Dissemination Data Centre Reprocessing (L1 and L2) On-Line Environments

6 On-Line Environments Raw Data Instrument Data Processing Facility (Level-1) Level-2 Processing Facility OPE OPE VAL VAL IV&V IV&V On-Line Environments

7 Instrument Data Processing Facility (IDPF) The IDPF receives raw instrument data and performs: Science data extraction and chunking (for parallel processing); Radiometric and spectral calibration; Geometric rectification to a reference grid (FCI only); Image Navigation and Registration; Aggregation of chunks and formatting into output file. It provides also capabilities for Algorithm Development, Fast Scientific Validation and Reprocessing (at least 5 times faster than near-real-time processing).

8 Level 2 Processing Facility (L2PF) The L2PF generates meteorological products from the Level-1 data produced by the IDPF. Flexibility and simplicity to include new products are key features of EUMETSAT level 2 processing Contract(s) will foresee the capability to add in additional products, potentially developed in house by EUMETSAT (including products developed by Satellite Application Facilities) Flexibility is also considered for the evolutions of existing products during the development of the L2 Facility It provides also capabilities for Algorithm Development, Fast Scientific Validation and Reprocessing.

9 Multi Mission Elements (MMEs) What are the Multi-Mission Elements? Elements currently used in several Operational Programmes or evolution of them, and can be re-used for future programmes, in particular for the MTG Ground Segment. These are identified as Multi-Mission Elements (MME) The main reasons for considering re-use are: Reduced development risks and costs Reduce long-term maintenance costs Consistency towards end users Easier, homogeneous operations

10 The MMEs provide the following functions for MTG Data Archive (MME DAC) long term archival and retrieval of MTG mission data user support and helpdesk services, including service registration Dissemination (MME DIS) dissemination of data to end users via EUMETCast, RMDCN/GTS and Internet presentation of data via Internet (rolling archive, image generation) ingestion of data from external parties into the GS master and session keys for TC authentication and payload data encryption Monitoring (MME MON) analysis and reporting (including science and long term trend analysis) centralised monitoring capabilities for the whole MTG ground segment end-to-end production, service status, hardware, remote spacecraft telemetry Infrastructure (MME INF) network connectivity to/from the MMEs and inter-building internet, RMDCN/GTS lines and network security time reference, voice loop and data protection services 10

11 Ground Segment Technical Challenges

12 MTG Operational Availability datasets received and that meet the quality thresholds datasets scheduled to have been sent or made *For a given period and removing the part corresponding to the scheduled outages and the available external outages Major contributing components of the Ground Segment Operational Availability are: Completeness; Accuracy; Timeliness Note: As opposed to Space Segment, any Ground Segment outage, planned or unplanned, contributes negatively to the operational availability; Any systematic loss of quality introduced due to data formatting or compression in order to comply with the agreed format specifications does not contribute to operational availability of the ground segment.

13 MTG Timeliness Time difference The end of reception of the corresponding data by the users The foreseen end of acquisition of the last contributing data *before decryption and decompression *from a sample, a dwell, a swath, a granule It excludes: delay introduced by transmission lines and networks outside EUMETSAT control (e.g. Internet, GTS). the processing time outside EUMETSAT control (e.g. SAF processing time).

14 GS Architectural Design Allocation of Key Parameters EUMETCast/HR Dissemination Examples: L1 Processing MDA (& WAN) Internet Download Ground End-to-End (GSRD) L1 processing chain timeliness IDPF MDA Station (incl. WAN) T0 MME Diss. T1 T2 MME Diss. T3 T4 End User Availability apportionment Satellite MDA L1 Proc L2 Proc Dissemination System Level System End-to-End [SRD] : 98% Space : (incl S-G Link & L1 algorithm) Segment Level Ground : (excludes L1 algorithm) MDA 99.97% L1 ( - alg) 99.8% L2 99.8% Dissemination 99.5% GS Facility Level

15 EUMETCast Availability and Timeliness Disseminated datasets Level 1 Datasets Full Disc Scanning Service (FCI-FDSS) Rapid Scanning Service (FCI-RSS) IR Sounder dataset UVN sounding dataset DCP messages and DCP bulletins Alert messages DCP Bulletins GS oper. availabili ty Timeliness via EUMETCast Repeat Cycle 450 sec. Repeat Cycle 280 sec Repeat Cycle Repeat Cycle 1600 sec 2720 sec (6320 sec for day 2 Level 2 products) Message 10 min group 115 sec 295 sec FCI Level 2 Products >=Daily products >=3-hourly products >=Hourly products < hourly IRS Level 2 Products > 3 hourly >= hourly & =< 3 hourly < hourly LI Level 2 Products Lightning Flash dataset Retransmission of SAF Accounting Unit Product Product Product Product Product Product Product Flash min min min min 120 min 90 min 60 min 25 sec

16 Availability and Timeliness - others RMDCN disseminated datasets GS oper. availabilit y Level 1 datasets Level 2 datasets DCP bulletins Service Messages Internet disseminated datasets Archived data Level 0 data Level 1 datasets Level 2 datasets GS oper. Availabilit y Accounting Unit Repeat Cycle Product Message Message Accounting Unit Timeliness 60 min 60 min 60 min 60 min Timeliness 60 min after As per NRT GS oper. datasets disseminatio Availabilit Accounting Retrieval ready n y Unit after % 99.95% Product Product Product N/A 24 hours 24 hours

17 MTG GS Constraint & Main Design Drivers Mission Data Processing Throughput Real-Time processing: 1 x NRT Fast Scientific Validation: 5 x NRT Re-Processing 30 x NRT Comparison MSG science data downlink ~3 Mbps MTG science data downlink ~600 Mbps (2 MTG-I+1 MTG-S) Payload Data Encryption Decryption unit must operate at speed around 170 Mbps (approximate IRS data rate)

18 Data-Rates for Downlink and Dissemination in Comparison with MSG and MTP Nominal = 2 MTG-I + 1 MTG-S * Data-rates are estimated based on current satellite design and dissemination assumptions

19 Number of CPU Cores per Instruments Level-1 and Comparison with Level-2 Numbers are estimated based on current assumptions and results of the Phase B Study. SpecFp_rate2006 = 16

20 Number of CPU Cores per In-orbit Configuration Level-1 only Nominal = 2 MTG-I + 1 MTG-S Numbers are estimated based on current assumptions and results of the Phase B Study. SpecFp_rate2006 = 16

21 Daily Circulating Data Volume per Instrument (Level-1 only) * Numbers are estimated based on current assumptions and include all on-line environments

22 Status of Facility Procurements

23 Status of Ground Segment Facility Procurements Instrument Data Processing Facility (IDPF) support for MTG-I (FCI + LI) + framework Final stage of direct negotiation with Space Segment Prime Contractor. Kick-off foreseen in October 2013 Instrument Data Processing Facility (IDPF) support for MTG-S (IRS + UVN) Specifications are being prepared. Procurement will be initiated in later stage. Level-2 Processing Facility (L2PF) Likely to be split between Imager (FCI+LI) and Sounder (IRS). Procurement will be initiated in later stage. Mission Operation Facility (MOF) Contractor has been selected. Kick-off foreseen in the coming months after contract signature. Ground Stations Facilities (MDAF & TTCF) Offers from Industry are currently under evaluations. Multi-Mission Elements (MMEs) Specifications are ready. Preliminary Design Review is planned for September This is likely to be a EUMETSAT internal activity

24 Thank you for your attention High-level Introduction to MTG Ground Segment Workshop on NWC Applications using MTG-IRS Fausto Roveda MTG Data Processing System Facility Manager