Earth Observation, Navigation & Science Post EPS Initial Satellite (PEPSIS) National User Workshop on Operational E/O Systems Walberberg, 7.-9. November 2005 Dr. Ralf Münzenmayer / EADS Astrium GmbH Page 1 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science Post EPS Initial Satellite (PEPSIS) Contents 1. Introduction – Early Need of PEPSIS? 2. P/L Requirements and Options 2.1 Overview 2.2 Infrared Sounder 2.3 Microwave Sounder 2.4 Imaging Radiometer 2.5 Reference P/L – Budgets 3. System Concept 3.1 Mission Architecture and Candidate Launcher 3.2 Satellite Concept and Options 3.3 Compatibility to the EPS G/S 4. Recommended Solution for PEPSIS and Possible Implementation Scenario Page 2 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 1 Introduction Page 3 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 1 Introduction IJPS- and JTA Agreement � EUMETSAT NOAA Agreements concerning polar orbiting systems for meteorology Initial Joint Polar System (IJPS) � Agreement dated Nov. 1998 • EUMETSAT - MetOp 1 & 2 - morning orbit - Launch 2006 • NOAA - NOAA N & N´ Polar Orbiting Environmental Satellites (POES) - afternoon orbit - Launch of NOAA N was May 2005 Page 4 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 1 Introduction Need for a Gap Filler / Post EPS Initial Satellite � JTA requires sounding data from MetOp-3 (after 2014) � Need of a backup for MetOp-3 � Post-EPS is too late '00 '01 '02 '03 '04 '05 '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 '16 '17 '18 '19 '20 '21 '22 '23 '24 '25 MSG MSG-1 MSG-2 MSG-3 MSG-4 MTG Phase 0 Phase A Phase B Phase CD MTG-1 Need Date POES/NPP/NPOESS NOAA-N (14:30) NOAA-N' (14:30) NPP (10:30) C1 (21:30) C4 (21:30) C2 (13:30) C5 (13:30) C3 (17:30) C6 (17:30) EPS METOP-A (09:30) METOP-B (09:30) METOP-C (09:30) Potential Gap EPS Gap Filler Requirements Design Phase C, D Gap Filler Post EPS Phase 0 Phase A Phase B Page 5 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005 Phase C, D Post-EPS Need Date
Earth Observation, Navigation & Science 1 Introduction Post-EPS Definition Process 2004 2005 2006 2007 J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D Initial Scope of Tentative Missions Introduction of Tentative Missions at MTG 2nd UC Workshop Atmospheric Sounding & Wind Profiling AEG User Ocean Topography & Imaging AEG Cloud, Precipitation & Land Surface Imaging AEG Consultation Atmospheric Chemistry AEG Consolidation of Application Requirements UC Consolidation Workshop Observation Mission Req. Mission Support Mission Req. Assess METOP Commissioning Results Requirements Programmatic Requirements Mission Definition Review RSE Support to AEGs Architecture Obs. Techniques Consolidation Sensor Concepts & System Architecture Concepts Sensor Concepts & System Architecture MTR Pre-Developments TRL-2 Page 6 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 2 P/L Requirements and Options Page 7 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 2.1 Payload Overview Payload Options for PEPSIS � Core payload: IR Sounder - IASI Imaging Radiometer (required as � supporting imager for IASI) PEPSIS • Minimum Imager (VIRI-M requirements) - Modular Concept (Kayser Threde GmbH) - METimage B1 (Jena-Optronik GmbH) • Medium Imager - METimage B2 (Jena-Optronik GmbH) Core IASI IASI IASI Payload • Maximum Imager (dual view) - EADS Astrium Future Imager concept Microwave Sounder (optional) � Minimum Medium Maximum Supporting Imager Imager Imager • ATMS (provision by NOAA unclear) Imager • CTS concept from SULA Systems Ltd. • LEOMIS concept from EADS Astrium SAS � Optional GRAS (GNSS Receiver for Optional Microwave Payload Optional Atmospheric Sounding) Payload Page 8 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 2.1 Payload Overview Co-registration requirements IASI data product generation require Co-registration � in time and space: • Timeliness between IASI and imager < +/-10s • Spatial co-registration < 1 km Relation of pixel sizes at Nadir VIIRS: 3000km Imager (VIIRS):max. 1km ATMS: 2300km IASI: 2052km IASI:12km MW Sounder (ATMS):10-37km � Spectral and Radiometric Requirements for Imagers • Depending on “atmospheric mission” (not driven by IASI needs) Page 9 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 2.2 Infra-Red Sounder IASI Main Data Volume 120 x 108 x 134 cm Mass 230kg Power 200W Data Rate 1.5Mb/s Cooling passive Characteristic Value Unit Scan type Stepp and stare - Scan rate 8 s Stare interval 151 ms Step interval 8/37 s Number of earth scans / line - EFOV 30 - Swath +/- 48.333 deg Swath width +/- 1100 km IFOV - shape at nadir circular - IFOV - size at nadir 12 km IFOV - size at edge of scan line across track 39 km IFOV - size at edge of scan line along track 20 km Page 10 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 2.3 Microwave Sounder Spectral Range Observation of water vapour line at 183GHz and O 2 line at 53GHz is mandatory. Page 11 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 2.3 Microwave Sounder MetOp and NPOES Instruments � AMSU-A will no longer be available after MetOp � MHS is limited to frequencies of 89 GHz and higher, thus no observation of the O 2 line at 53 GHz is possible � ATMS currently under development for NPOES by Northrop Grumman has less radiometric performance compared to AMSU-A and MHS but combines both spectral ranges Instrument l * b * h (mm) Mass (kg) Power (W) ATMS 700 600 400 66 85 Page 12 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 2.3 Microwave Sounder Candidate Instrument Concepts � ESA has initiated Pre-Phase A studies resulting in two interesting instrument alternatives: • Cross-Track Scanner from SULA Systems Ltd - Single aperture across track scanner Instrument Size (l * b * h) (mm) Mass (kg) Power (W) Main Module 1425 700 550 80 140 Electronics Module 580 400 400 • Conical Scanner from EADS Astrium SAS - Conical scan imager with two dishes Instrument Size dia x height (mm) Mass (kg) Power (W) LEOMIS 1200 1400 112 83 Earth Earth Scanning Scanning Page 13 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
Earth Observation, Navigation & Science 2.3 Microwave Sounder Instrument Capabilities cross-track scanner conical scanner Frequency range 22.9 – 229 GHz 23.8 – 220 GHz Beam width 2.5° - 1.1° 1.0° - 0.7° Radiometric resolution 0.15 K – 1.6 K 0.16 K – 0.88 K polarisation V, single (V) dual Cross-Track scanner offers improvements in radiometric � and spatial resolution, allowing to derive more precise temperature/moisture profiles The conical scan offers similar sounding capabilities as a � cross-track scan with additional advantages: - constant horizontal resolution - fixed polarisation state Due to its scan concept and the polarisation � measurement capability a conical scan instrument can deliver additional information of climatological relevance, e.g. surface moisture content and precipitation data Page 14 PEPSIS - National User Workshop on Operational E/O Systems / Walberberg, 7.-9.11.2005
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