Digital Signal Processing Reference
In-Depth Information
SPOT-5
SPOT(Système Probatoire d'Observation de la Terre) (lit."Probationary System of Earth
Observation") is a high-resolution, optical imaging Earth observation satellite system operating from
space. It is run by Spot Image based in Toulouse, France. It was initiated by the CNES (Centre
national d'études spatiales — the French space agency) in the 1970s and was developed in association
with the SSTC (Belgian scientific, technical and cultural services) and the Swedish National Space
Board(SNSB). It has been designed to improve the knowledge and management of the Earth by
exploring the Earth's resources, detecting and forecasting phenomena involving climatology and
oceanography, and monitoring human activities and natural phenomena. The SPOT system includes a
series of satellites and ground control resources for satellite control and programming, image
production, and distribution. The satellites were launched with the ESA rocket launcher Ariane 2, 3,
and 4.
The company SPOT Image is marketing the high-resolution images, which SPOT can take from
every corner of the Earth.
SPOT 1 launched February 22, 1986 with 10 panchromatic and 20 meter multispectral picture
resolution capability. Withdrawn December 31, 1990.
SPOT 2 launched January 22, 1990 and deorbited in July 2009.
SPOT 3 launched September 26, 1993. Stopped functioning November 14, 1997
SPOT 4 launched March 24, 1998
SPOT 5 launched May 4, 2002 with 2.5 m, 5 m and 10 m capability
SPOT 5 was launched on May 4, 2002 and has the goal to ensure continuity of services for customers
and to improve the quality of data and images by anticipating changes in market requirements. SPOT
5 has two high resolution geometrical (HRG) instruments that were deduced from the HRVIR of
SPOT 4. They offer a higher resolution of 2.5 to 5 meters in panchromatic mode and 10 meters in
multispectral mode (20 metre on short wave infrared 1.58 - 1.75 μm). SPOT 5 also features an HRS
imaging instrument operating in panchromatic mode.
SPOT-5 multispectral sensor
Description
Satellite orbital details as per SPOTs 1-4.(60-80 km swath; 26-day orbital repeat cycle for nadir viewing;
generally 11 viewing opportunities every 26 days over New Zealand).The spatial resolution of SPOT-5
multispectral data is 10 m. This means that SPOT-5 bridges the gap between the medium resolution services and
the very high resolution services.
Availability
SPOT-5 was launched on 4 May 2002. Data is downloaded into a number of receiving stations overseas. The
nearest station to New Zealand is in Adelaide and its coverage circle cannot reach N.Z. Therefore, N.Z. data is
only available via the on-board tape recorders.
Uses
Mapping and monitoring for agriculture, forestry, exploration, land use, geology, hydrology, coastal resources,
coastal monitoring, ship detection and monitoring. Suitable for mapping scales down to at least 1:25 000 scale.
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