SPOT
High resolution, stereo imaging satellites constellation.
SPOT is a constellation of
high resolution, stereo imaging satellites designed by the CNES, the
French Space Agency, and operated commercially by Spot Image. The
system has been in operation since 1986 when SPOT 1 was launched and
today SPOT 2, SPOT 4 and SPOT 5 are operational. The design of the
SPOT constellation allows for a high revisit frequency which has
created an extensive archive of current and historical imagery.
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SPOT 1, 2 & 3 |
SPOT 4 & 5 |
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SPOT 5
Specifications
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Imaging
Mode
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Panchromatic
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Multispectral
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Shortwave
IR
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Spatial Resolution
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2.5 m* & 5 m
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10 m
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20 m
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Spectral Range
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480-710 nm
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500-590 nm (Green)
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1580-1750 nm
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610-680 nm (Red)
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780-890 nm (NIR)
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Launch
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May 4, 2002
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Mission Life
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Operational. Expected 5
years
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Orbit
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822 km 98.7 degree
sun-synchronous
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Nodal Crossing
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10:30 AM
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Revisit Time
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2-3 days
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Swath Width
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60 km
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Off-Nadir Imaging
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+/- 31 degrees
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Dynamic Range
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8 bits per pixel
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Stereo Imaging
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Yes
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Tasking
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Yes
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* 2 panchromatic bands (5m) combine to generate a 2.5m product.
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SPOT 4
Specifications
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Imaging
Mode
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Panchromatic
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Multispectral
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Shortwave
IR
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Spatial Resolution
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10 m
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20 m
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20 m
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Spectral Range
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610-680 nm
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500-590 nm (Green)
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1580-1750 nm
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610-680 nm (Red)
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780-890 nm (NIR)
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Launch
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March 24, 1998
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Mission Life
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Operational. Exceeded expected 5
years
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Orbit
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822 km 98.7 degree
sun-synchronous
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Nodal Crossing
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10:30 AM
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Revisit Time
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2-3 days
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Swath Width
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60 km
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Off-Nadir Imaging
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+/- 31 degrees
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Dynamic Range
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8 bits per pixel
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Stereo Imaging
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Yes
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Tasking
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Yes
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SPOT 1-3
Specifications
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Imaging
Mode
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Panchromatic
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Multispectral
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Spatial Resolution
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10 m
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20 m
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Spectral Range
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500-730 nm
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500-590 nm (Green)
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610-680 nm (Red)
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780-890 nm (NIR)
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Satellite
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SPOT 1
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SPOT 2
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SPOT 3
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Launch
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February 22, 1986
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January 22, 1990
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September 26, 1993
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Mission Life
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Withdrawn
December 31, 1990
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Operational
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Stopped functioning
November 14, 1997
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Orbit
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822 km 98.7 degree
sun-synchronous
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Nodal Crossing
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10:30 AM
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Revisit Time
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2-3 days
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Swath Width
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60 km
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Off-Nadir Imaging
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+/- 31 degrees
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Dynamic Range
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8 bits per pixel
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Stereo Imaging
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Yes
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Tasking
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Yes (SPOT 2)
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