Pléiades. Access to data. Charlotte Gabriel-Robez. January Pléiades product manager

Transcription

1 Pléiades Access to data Charlotte Gabriel-Robez Pléiades product manager January 2012

2 A variety of users 2008: Delegation of Public Service Granted by CNES to Spot Image Astrium Services (ex. Spot Image) civilian operator and exclusive worldwide distributor to Category 1 users: partner countries + French Institutional Players Category 2 users: European institutional Players Category 3 users: other customers Cat 1 & 2 have privileged access to Pléiades data under certain conditions Be a Category 1 (native) or 2 (CNES recognition) Use data as stated in the Cat 1 / 2 license (own needs, no trade) Order a Standard Product Date - 2

3 Pléiades STANDARD PRODUCTS Date - 3

4 Processing levels Primary level (~ 1A SPOT 5 sensor geometry) Radiometric corrections (radiocorrection and panchro restoration) Geometric corrections restoring perfect linear conditions of acquisition Equivalent of a sampled linear single array Perfect P and MS registration Corrected attitude: virtual smooth attitude Corrected ephemeris: perfect datation Expected ellipsoid geolocalisation: 4.5m CE90 with refined attitude data and without GCP Ortho level (georeferenced) Primary level corrections Projection (most of the current projections) Terrain corrections Applied thanks to a DTED2-class DEM (with or without GCPs) Expected geolocalisation: 4.5 m CE 90 without GCP; 6 to 10 m with Ref3D GCPs (ideal for multitemporal / multisensor works) Automatic processing of orthomosaics up to 1 sq degree (seamless) Date - 4

5 Products resolution and spectral bands Panchromatic (50 cm) nm Multispectral (2 m) Blue: nm Green: nm Red: nm Near infrared: nm Pan & MS acquired simultaneously On board telemetry coded over 12 bits Deliverable Pan only, MS only, Bundle, Pansharpened 3 or 4 bands Resolution < 1 m up to 30 acquisition angle (combin ed pitch&roll) Date - 5

6 Options for standard products Mono / stereo / tristereo Mono: primary / ortho Stereo, tristereo: primary only AOI based 100 sq.km minimum order size for archive (primary or ortho) 100 sq.km minimum order size for new image (primary or ortho) Delivering and formatting Media: FTP File format: DIMAP V2 Image format in DIMAP V2 file: JPEG 2000 or GeoTIFF JPEG 2000 compression ratio: optimized (3.5 bits / pixel) or regular (8 bits/ pixel) Refined Attitude: integrated per default Dynamic Streching (~DRA): on / off Pixel encoding: 8 or 12/16 bits Date - 6

7 Image format: JPEG 2000 and GeoTIFF 50 cm, Pansharpened 4 bands (R, G, B, NIR), 20 x 20 km Primary Ortho (20 angle) JPEG 2000 Dynamic range 12 bits Optimized: 2.5 GB Regular: 5,96 GB (max) Optimized: 2.9 GB Regular: 6.76 GB (max) GeoTIFF Dynamic range 12 bits (storage 16 bits) 13.5 GB 15.5 GB Primary Ortho (20 angle) Dynamic range 8 bits Optimized: 2.5 GB Regular: 5,96 GB (max) Optimized: 2.9 GB Regular: 6.7 GB (max) Dynamic range 8 bits 6.7 GB 7,7 GB JPEG 2000 optimizes file size (up to to 5 times less!) while guaranteeing excellent preservation of of the information content Read by most software // GIS editors Date - 7

8 Pléiades INSTANT TASKING Date - 8

9 Revisit Pléiades 1&2 corridor of visibility for 1 day 1 day revisit above 40 lat at at 30 angle 2 day revisit between equator and 40 lat, 1 day with increased angle Date - 9

10 Three tasking plans per day Kiruna Toulouse Up to to two hours before satellite passes: Take into account last-minute customer requests Fine-tune tasking plan according to to the most recent weather forecast for increased success rate Kerguelen 13:40 UT 6:00 UT 23:00 UT 13:40 UT Date - 10

11 Instant tasking Features Access: portal Simple AOIs < 20 km x 20 km max, < 1 attempt / day w.w. How it works The customer uploads his AOI He gets next satellites passes He checks weather forecast on his / her own He decides to post a tasking request Tasking request is automatically entered into the system with max priority Data is acquired, produced and delivered automatically Date - 11

12 Instant tasking Benefits A solution designed for expert customers, familiar with weather data and able to to decide to to shoot (per attempt pricing) A premium service addressing extreme reactivity needs leveraging the benefits of of the multiple tasking plan per day Pléiades 1&2 but also Spot 6&7 24/7, on line, fully automatic Date - 12

13 Pléiades ADDED VALUE PRODUCTS Date - 13

14 Date - 14 In the spirit of our best seller SPOTMaps,

15 Early thoughts about multidate mosaics Standardized high quality 50cm mosaic in natural color Anywhere in the world Very accurate: 4.5m CE901 (without GCP) Map scale reference 1:5,000 Uniform & Seamless mosaic Three mosaic products: PléiadesMaps City PléiadesMaps County PléiadesMaps Region km² km² km² Date - 15

16 Pléiades 3D early specs A DSM is including both ground and above ground features High quality surface models processed from stereopairs Equivalent HRE40 HRE10 // DTED 3/4 Very accurate : 1 m LE 90 or so (with GCP) Dense urban areas Tri- or multistereo DEM or DSM DTM DSM (typically 5m) DSM premium (typically 1m) Fast and accurate product based on automatic stereo matching of Pléiades stereo images. No manual adjustment Pending first results with real Pléiades data Very accurate product automatically produced using Pléiades stereo images. Only applicable on mineral areas with few vegetation and built up structures Date - 16

17 Access to Pléiades Christine Jonathan Julien Isabelle Audrey Christelle Karine Marlise Adrien Philomène Jessica Noelle Ingrid