THEOS available for European Users 15 th GeoCAP Conference Damrongrit Niammuad d.niammuad@eoc.gistda.or.th, +66 38 400 090 15th GeoCAP, November 18-20, 2009 Taormina, Italy 1
Outlines THEOS INTRODUCTION THEOS PROGRAMMING THEOS POLAR STATION ADVANTAGES TO EUROPEAN USERS ON GOING PROJECTS 15 th GeoCAP, November 18-20, 2009 Taormina, Italy 2
THEOS INTRODUCTION Total mass Dimensions Solar array Nominal Lifetime Local Solar Time Recording capacity Image Telemetry Off-nadir viewing Attitude control No. orbits/day 715 kg 2.1 x 2.1 x 2.4 m 840 W > 5 years 10:00 am 51 Gbit solid-state memory 120 Mbit/sec (X band) +/- 50º (roll and pitch) Earth pointing and high agility 14+5/26 orbits/day Sun-synchronous nearcircular orbit 15th GeoCAP, November 18-20, 2009 Taormina, Italy 3
THEOS INTRODUCTION THEOS System allows 2 different missions. Panchromatic, high resolution rather small FOV Multispectral, medium resolution with large FOV Panchromatic Class of Quickbird to Formosat 2 (10 to 20 km swath) More dedicated to cartography, local land use, monitoring and security Multispectral Class of Spot, Landsat, IRS (>60 km swath) More dedicated to agriculture, forestry, natural resources and management 15th GeoCAP, November 18-20, 2009 Taormina, Italy 4
INTRODUCTION 15th GeoCAP, November 18-20, 2009 Taormina,Italy 5
INTRODUCTION Off- Nadir Viewi ng Acces s Corrid or km 30 1,000 50 1,900 km Repe at Positi 5 on 2 da da ys 15th GeoCAP, November 18-20, 2009 Taormina,Italy 6
THEOS INTRODUCTION PAN MS Resolution (m) / Imaging swath (km) 2 / 22 15 / 90 Spectral ranges (um) 0.45 0.90 B1 (Blue): 0.45-0.52 B2 (Green): 0.53-0.60 B3 (Red): 0.62-0.69 B4 (NIR): 0.77-0.90 PAN Level 1A PAN Level 2A 15th GeoCAP, November 18-20, 2009 Taormina,Italy 7
THEOS INTRODUCTION Ground segment: Image Ground Segment (IGS) Ladkrabang : To acquire, process, archive, and exploit the imagery from standard products to value added products. Control Ground Segment (CGS) Si-Racha : To monitor and control the satellite according to the daily optimised mission programming by taking into account user requests and satellite utilisation. 15th GeoCAP, November 18-20, 2009 Taormina,Italy 8
THEOS INTRODUCTION THEOS Launch: THEOS was launched, at 13.37 BKK time on October 1, 2008, from Yasny launch site in Russia by Dnepr Rocket. 15th GeoCAP, November 18-20, 2009 Taormina,Italy 9
THEOS INTRODUCTION THEOS In-Obit Test and Calibration THEOS has been operating at the orbit (822 km. altitude) after completion of the orbit transfer on October 14, 2008. In-Orbit Tests (IOT) started for 2 cycle performing the system commissioning and image calibration globally during October 16- December 6,2008 with 3,800 image segment of 13,000 PAN scenes + 4,840 MS scenes for IOT. 51 Gbits SSR capacity verified. All Satellite subsystems testing were completely performed with Verification of AOCS modes of operations; Acquisition and Safe Hold mode, Normal mode, Orbit Control mode. With the manoeuvre report, it is compatible for more than 10 years in-orbit life. 15th GeoCAP, November 18-20, 2009 Taormina,Italy 10
THEOS INTRODUCTION THEOS Image Calibration dark signal, relative gains SNR, dynamic range absolute calibration geometric calibration pointing knowledge, pointing accuracy measurement MTF measurement overall image quality CNES engineering team joined and supported us for THEOS system commissioning and image calibration during IOT and IOT Acceptance Reviews (IOAR) meeting in January 2009. 15th GeoCAP, November 18-20, 2009 Taormina,Italy 11
THEOS INTRODUCTION Absolute calibration Approach based on SADE database (CNES Method) Using desert sites requires continuous acquisitions over selected sites requires pre-processing of data (tool provided by Astrium) Dataset acquired during IOT more than 50 measurements available and pre-processed synthesis file generated, analysed and sent by Astrium to CNES Cross-calibration with respect to CNES operated sensors, used as reference. 15th GeoCAP, November 18-20, 2009 Taormina,Italy 12
THEOS INTRODUCTION SNR computed from radiometric model (dark noise, photonic noise, detection chain gains, quantisation noise) absolute gains from ground measurement updated dark noise SNR is better than specifications. PAN B1 B2 B3 B4 SNR 147 202 234 246 246 spec 90 100 100 100 100 15th GeoCAP, November 18-20, 2009 Taormina,Italy 13
THEOS INTRODUCTION MTF: Measurement of Knife Edge Function on ground pattern Derivation of MTF by mathematical formula Acquisitions First acquisition without cloud on November 17 th Second acquisition on November 23 rd Third acquisition on Pong Hu pattern on December 7 th PAN MTF > 0.13 MS MTF > 0.2 Salon de Provence pattern 15th GeoCAP, November 18-20, 2009 Taormina,Italy 14 MTF value 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Normalised frequency MTF ACT MTF ALT Theoretical 0.1
THEOS PROGRAMMING On demand collection : based on users/customers requests Event-Based Collection : Disasters: Typhoon Morakot hit Taiwan and China ASIAES Project World collection : Marketing based, potential area (customer based) 15th GeoCAP, November 18-20, 2009 Taormina,Italy 15
THEOS PROGRAMMING World Collection July August 2009: Europe 15th GeoCAP, November 18-20, 2009 Taormina,Italy 16
THEOS PROGRAMMING World Collection July August 2009: World Collection July - August 2009 100 % 90 80 70 60 50 40 30 20 10 0 ASEAN ASIA Australia Europe North America Middle America South America Africa Series1 64.59627 23.88535 76.15385 60.07905 9.774436 9.638554 4.166667 1.473684 15th GeoCAP, November 18-20, 2009 Taormina,Italy 17
THEOS PROGRAMMING 15th GeoCAP, November 18-20, 2009 Taormina,Italy 18
THEOS PROGRAMMING World Collection July August 2009:Multi-Spectral 100 % Cover Indonesia/ Malaysia & Brunei/ Singapore/ Bhutan/ India/ Ireland/ Latvia/ Lithuania/ Slovak More than 90 % Papua New Guinea/ New Zealand/ UK/ Poland All expected areas in ASEAN were imaged Half of Australia and Europe areas were imaged 50% good images in Australia, 36% good images in Europe 62% good images in additional areas 15th GeoCAP, November 18-20, 2009 Taormina,Italy 19
THEOS Polar station THEOS polar station would be deployed at Esrange Space Centre, Kiruna under a contract with Swedish Space Corporation (SSC) offering around 10-13 orbits contact. System capacity enhancement (THEOS on the global market ) Complement and backup to GISTDA s main station, TT&C commands in case of S-band ground antenna and satellite l 15th GeoCAP, November 18-20, 2009 Taormina, Italy 20
Mission TC/TM House Keeping Mission Work Plan Overall THEOS Polar station Image Telemetry Mission Data Production THEOS S-Band Station (Kiruna) S-Band Station X-Band Station X-Band Station (Kiruna) Satellite Control Center (SCC) Data Processing Facility (DPF) Data Processing Facility (DPF) Mission Planning Center (MPC) Quick Delivery Central Archiving + Catalogue Server Value Added Product Facility Programming Service Ordering/Quotation Order Tracking Product Delivery Invoice/Billing THEOS GeoPortal Consultation User Request Media/FTP 15th GeoCAP, November 18-20, 2009 Taormina,Italy User Media Only Quick Delivery ftp/media 21
Client Satellite programming request Siracha Satellite programming Ladkrabang Image Production SSC, Kiruna Step 1 Reception SSC Pre processing Catalogue search and browse Full scene correction Product selection Ground registration Co registration Orthorectification SISA Client Delivery 15th GeoCAP, November 18-20, 2009 Taormina, Italy 22
ADVANTAGES TO EUROPEAN USERS Uplink of commands for programming of THEOS (normal and urgent from client) Near Real Time of THEOS imagery data and Hi speed delivery of imagery data - terrestrial link (Push and Pull) Reception, pre processing and archiving including customer specific evaluation and service (cloud) THEOS Good collaboration- SSC & SISA Establishment of a customer specific THEOS image archive including a catalogue and query system (quick look) Expansion of the network station- Prioranet 15th GeoCAP, November 18-20, 2009 Taormina, Italy 23
ADVANTAGES TO EUROPEAN USERS THEOS Large Swath: Thailand Coverage Area: 513,115 km2 MS: whole country and border (green area) PAN : partial (blue area) Acquisition Duration : 23 days (no reprogram) Imaging criteria : Nadir angle Number of scenes PAN 491 scenes (187,768 sq.km.) MS 127 scenes (768,142 sq.km) Advantage: cover Thailand within 1 month, thanks to large swath width of MS camera Implying to France: 674,843 km2 Italy: 301,338 km2 15th GeoCAP, November 18-20, 2009 Taormina, Italy 24
Coverage Area : whole country and border (both PAN and MS) Acquisition Duration : 102 days (no reprogram) Imaging condition : Nadir angle Number of scenes PAN 1809 scenes (674,695 sq.km) MS 500 scenes (2,760,114 sq.km) Implying to France: 674,843 km2 Italy: 301,338 km2 15th GeoCAP, November 18-20, 2009 Taormina, Italy 25
THEOS: 28/08/09 15th GeoCAP, November 18-20, 2009 Taormina, Italy 26
THEOS: 28/08/09 15th GeoCAP, November 18-20, 2009 Taormina, Italy 27
THEOS: 28/08/09 15th GeoCAP, November 18-20, 2009 Taormina, Italy 28
THEOS: 16/04/09 THEOS: 16/04/09 15th GeoCAP, November 18-20, 2009 Taormina, Italy 29
THEOS On going project THEOS Image GeoWeb Portal User Interface with IMAGE Catalogue online Automatic Image Production chain Large and Reliable Robotic Image Archive Library 15th GeoCAP, November 18-20, 2009 Taormina,Italy 30
THEOS Image Ortho-rectification 15th GeoCAP, November 18-20, 2009 Taormina,Italy 31
THEOS Data Transfer via Research and Education Network ASIAES 15th GeoCAP, November 18-20, 2009 Taormina,Italy 32
ASEAN+3 Satellite Image Archive For Environmental Study (ASIAES) ASIAES is regional co-orporation recommended by the ASEAN+3 Economics Minister (AEM+3) Space related Agencies in SE Asia China, Japan and Korea A web portal Designed to share information of EO satellite products for natural hazards existed in the ASEAN+3 member countries Online catalogue Search Engine Implemented in 2007 15th GeoCAP, November 18-20, 2009 Taormina, Italy 33
Thank you www.gistda.or.th 15th GeoCAP, November 18-20, 2009 Taormina,Italy 34