Spot Image JP - SPOT Scene

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SPOT Scene,
the standard product

SPOT Scenes are standard products which undergo basic preprocessing.

Applications

SPOT Scenes are intended for:

geometric image processing,
photo-interpreting,
thematic studies,
making DEMs from stereopairs.

SPOT Scenes are available with the following options:

Resolution and spectral mode

Depending on the level and detail required for specific applications:

Black and white	Colour
2.5 m	2.5 m (level 2A only)
5 m	5 m (level 2A only)
10 m	10 m
	20 m

Size

Depending on the surface of the area to be studied:

complete scenes: 60 km long x 60 to 80 km wide, according to the viewing angle.
extracts from subscenes (2.5 m and 5 m in black and white and colour, and 10 m in colour):
- 1/2 scene :
  ~ 42 km x 42 km
- 1/4 scene :
  ~ 30 km x 30 km
- 1/8 scene :
  ~ 21 km x 21 km

Preprocessing level

Depending on the geometric corrections required:
level 1A
level 1B
level 2A

Location accuracy

Depending on the expected geometric accuracy:

over flat ground it is greater than 350 m (1 sigma) for the SPOT 1 to 4 satellites (10 m for black and white and 20 m for colour),
and drops to only 50 m (1 sigma) for SPOT 5 (2.5 m and 5 m in black and white and colour and 10 m in colour).

Format

The SPOT Scenes are supplied in the Dimap format

The SPOT Scenes from SPOT 1 to 4 may come on request in theCAP format (CEOS standard).

Stereopairs

A stereopair consists of two images of the same area, taken from two different viewing angles with a base-to-height ratio of at least 0.5. It is possible to use stereopairs acquired with oblique viewing and repeat visits by SPOT 1 to 5 satellites.

These pairs of images are available in SPOT Scene resolutions and spectral modes.

Special image processing software is needed to exploit them. They can be fed into Digital Elevation Models (DEMs) and used to make orthoimages for many different fields.

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SPOT Scene

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