IMAGE INFORMATION (GeM+)
Section [OVERVIEW:ASPECTES_TECNICS:PLAT_INSTR_INFO] (REL file)

Name of GeM+ entry: Scene Type
Name of REL file key: TipusEscena

Description and considerations: Indicates the type of scene storing the documented data. The different types of scene are:

Follows the proposal of: GeM+

Obligatory according to GeM+: No

Cardinality: 1

Key type: C

AppliesToLayer: Yes
AppliesToSeries: No (holds information on the layer)

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Name of GeM+ entry: Orbit or path number
Name of REL file key: PathNumber

Description and considerations: Indicates which of the satellite orbits or flight paths the image was acquired from.

Follows the proposal of: GeM+

Obligatory according to GeM+: No

Cardinality: 1

Key type: C

AppliesToLayer: Yes
AppliesToSeries: No (holds information on the layer)

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Name of GeM+ entry: Scene number
Name of REL file key: RowNumber

Description and considerations: Indicates the scene (within an orbit or the flight path documented in PathNumber) to which the image corresponds. In the case of consecutive scenes it is necessary to introduce the number of the initial scene.

Follows the proposal of: GeM+

Obligatory according to GeM+: No

Cardinality: 1

Key type: C

AppliesToLayer: Yes
AppliesToSeries: No (holds information on the layer)

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Name of GeM+ entry: Final scene number
Name of REL file key: FinalRowNumber

Description and considerations: For the case of consecutive scenes it is necessary to indicate the number of the initial scene (in the entry Scene number) and the final scene (in this entry).

Follows the proposal of: GeM+

Obligatory according to GeM+: No

Cardinality: 1

Key type: C

AppliesToLayer: Yes
AppliesToSeries: No (holds information on the layer)

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Name of GeM+ entry: Approximate scene number
Name of REL file key: RowNumberIsApprox

Description and considerations: In some cases the scene number is only approximate since the image falls in between two standard images. This entry is related to the Scene type entry as follows:

• For a complete scene, standard quadrant 1, standard quadrant 2, standard quadrant 3 or standard quadrant 4 it is not possible to select this option.
• For a complete floating scene, the number of the orbit or path is always approximate and, therefore, this option is activated and cannot be desactivated.
• For an unknown scene, floating quadrant, miniscene, consecutive scenes or windows it is possible to define whether the orbit or path number is approximate or not.

Follows the proposal of: GeM+

Obligatory according to GeM+: No

Cardinality: 1

Key type: C

AppliesToLayer: Yes
AppliesToSeries: No (holds information on the layer)

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