Five Years Orbit Experience of a Small Satellite Hyperspectral Imaging Mission. Mike Cutter & Martin Sweeting. AIAA Utah, August 2007

Size: px

Start display at page:

Download "Five Years Orbit Experience of a Small Satellite Hyperspectral Imaging Mission. Mike Cutter & Martin Sweeting. AIAA Utah, August 2007"

Letitia Pearson
6 years ago
Views:

1 Five Years Orbit Experience of a Small Satellite Hyperspectral Imaging Mission Mike Cutter & Martin Sweeting AIAA Utah, August 2007

employees (10%) and USA SpaceX (10%) Tycho House, Surrey Research Park

2 SSTL - the company Surrey Satellite Technology Ltd is a private British satellite manufacturing company owned by the University of Surrey (80%), employees (10%) and USA SpaceX (10%) Tycho House, Surrey Research Park Guildford, AIT Facilities - UniS Optical Payload Group Rayleigh House, Sevenoaks, Kent

Next Generation Optical System Nigeriasat-2

Imager, 32m 4-band multispectral 320km swath

3 Next Generation Optical System Nigeriasat-2 contract signed in November 2006 Hi-Res imager, 2.5m PAN & 5.0m 4-band multispectral 20km swath Medium-Res Imager, 32m 4-band multispectral 320km swath 7 year life Advanced imaging modes Dual X-band downlink >150 images per day

4 Contents Mission Overview Instrument Overview Observation Programme Application Snapshots Future Plans Chichester Harbour, England 7 October 2004 Bear Lake, Utah 10th Aug 2007 Monument Valley, Utah, USA 9th Dec 2006

Mission Overview Mission Elements Payload: CHRIS imager Platform: ESA Proba-1 smallsat technology platform Special Features Hyperspectral instrument (highest resolution currently in-orbit) Highly

5 Mission Overview Mission Elements Payload: CHRIS imager Platform: ESA Proba-1 smallsat technology platform Special Features Hyperspectral instrument (highest resolution currently in-orbit) Highly agile small platform (roll, pitch & yaw) Multi-view angle observations of each target Mission Organisation ESA Third Party Mission Science plan reviewed & renewed each year Utilisation Active User group 5 th CHRIS Workshop held in Montreux, Switzerland

6 Mission Overview - Launch Launch: 22 October 2001 PSLV Indian Launcher from Sriharikota island, India. Orbit: SSO 10:30am Altitude: 550 and 670 km. Inclination: 97.9 deg.

7 Mission Overview multiple angles Nominal view angles: +/- 55, +/- 36, 0

8 CHRIS Instrument Mass: 14kg Power: 8W Volume: 790x260x200mm CHRIS Data cube

9 Basic System Parameters Image area 13 km perigee Spatial sampling interval 17 perigee Spectral range (nominal) 400nm to 1050nm Spectral resolution 11nm Digitisation 12 bits Signal-to-noise ratio 200 (@ 0.2 albedo, 17m, 10nm) Programmable spectral & spatial dimensions Highest resolution hyperspectral imager currently in-orbit

10 CHRIS Imaging Modes Programmed modes Mode No. of bands GSD (m) Swath Width Applications Full Aerosols Full Water Full Land Full Chlorophyll Half Land Flexibility exists to offer mode variants

11 2007 Observational Programme Malindi, Keyna

12 CHRIS Science Sites in 2007 Science sites: 206 in 39 countries PIs: 87 Total 3 sets of 5 images per day ( 400 images/month) cloud prediction Total images: Science 8540, Public relations 2298, Disaster Charter: 510

13 Application Snapshots Bromo Volcano, East Java 19 June 2004

14 Temporal & Angular Canopy Reflectance CHRIS reflectances from maize Swiss Midlands 17/08/2005 Temporal variation 22/09/2005 Multi-angular variation 20/06/ /08/ /05/2005 FZA -36 FZA -55 FZA +55 FZA 0 FZA /06/ /05/2005 Source: Mathias Kneubühler et al, RSL, Univ. Zürich, Switzerland

15 Classification results in Canada Nadir Only Classification Error 19.1% Five Angles Error 8.2% David Goodenough & Andrew Dyk, Natural Resources Canada, Canada

16 Lichen Cover in Central Namib Desert Fruticose Lichen Teloschistes capensis Important to ecology of region Foliose Lichen Xanthoparmelia spp. Crustose Lichen Lecidella crystallina Courtesy of Bettina Weber, University of Kaiserlautern Germany

Cover & biomass estimates of biological soil crusts Wlotzkasbaken, Namibia Sept 2005 May 2003 Erosion Fruticose Fruticose/Foliose Foliose Foliose/Crustose

17 Cover & biomass estimates of biological soil crusts Wlotzkasbaken, Namibia Sept 2005 May 2003 Erosion Fruticose Fruticose/Foliose Foliose Foliose/Crustose Crustose Crustose Sparse Courtesy of Bettina Weber, University of Kaiserlautern, Germany Fruticose Fruticose/Foliose Foliose Foliose/Crustose Crustose Crustose Sparse

18 Inland Water Quality Assessment Aracena Dam, Spain Chlorophyll-a Total suspended solids (TSS) Turbidity Coloured dissolved organic matter (CDOM) Source: A. Polvorinos, University of Saville,

optical depth Land surface optical reflectance Designs for future missions exist within SSTL

19 Future Plans Continue CHRIS Programme through 2007 Development of an image processing toolbox: Pattern noise removal Cloud masking tool Geometric correction Atmospheric correction Aerosol optical depth Land surface optical reflectance Designs for future missions exist within SSTL providing increased capability & the option of enhancing the operational aspects of the mission.

20 Thank you For further information contact : Business Development Department Surrey Satellite Technology Limited Tycho House, Surrey Research Park, Guildford, Surrey, GU2 7YE, UK Tel: , Fax: info@sstl.co.uk Web:

Geospatial Vision and Policies Korean Industry View 26 November, 2014 SI Imaging Services

Geospatial Vision and Policies Korean Industry View 26 November, 2014 SI Imaging Services Distribution Limitation, SI Imaging Services Proprietary Data : The data contained in this document, without the