Acquisition Information

Identifier	Title / Description	Value Domain	Card	Condition	Metadata classes	Guidelines	Example
ACINS [DMF/Sensor]	Acquisition Instrument This is information about the instrument (sensor) used in data acquisition.	Instrument	1..*		A DMF/Sensor class extending DMF/Data for sensors.
ACPLAT [DMF/Sensor]	Acquisition Platform Information This element provides designation of the platform used to acquire the dataset.	Platform	0..1		A DMF/Sensor class extending DMF/Data for sensors.
ACMETCD [DMF/Sensor]	Meteorological Conditions of Acquisition This describes the meteorological conditions in the area at collection time. This element is intended for airborne or in-situ acquisition.	Meteorological Condition	0..1		A DMF/Sensor class extending DMF/Data for sensors.
ACDATE [DMF/Sensor]	Acquisition Date Time Date and time of the collection.	DateTime	0..1		A DMF/Sensor class extending DMF/Data for sensors.
SUNAZ [DMF/Sensor]	Sun Azimuth Clockwise angle in degrees from north to the centre of the sun’s disc. (ESA definition)	Float 0…360	0..1	Because of implementation issues, this element can only be used with a Georeferenceable Grid Spatial Representation.	A DMF/Sensor class extending DMF/Data for sensors.	This angle is calculated from the nadir point of the sensor, not at the centre point of the image.
SUNEL [DMF/Sensor]	Sun Elevation Angle between the horizon and the center of the sun's disc (ESA definition).	Float -90..90	0..1	Because of implementation issues, this element can only be used with a GeoreferenceableGrid Spatial Representation.	A DMF/Sensor class extending DMF/Data for sensors.	This angle is calculated from the nadir point of the sensor, not at the centre point of the image.

DMF/Core	DMF/Core defines the minimum set of metadata elements to be implemented by any metadata catalogue. This set satisfies the discovery use case.
DMF/Common	DMF/Common is an additional set of metadata elements for a more complete description of any type of resource supported by DMF. It extends DMF/Core and covers discovery and basic evaluation use cases.
DMF/Data	DMF/Data extends DMF/Common for data related resources (i.e. dataset, series and tile). DMF/Data adds metadata elements for evaluation and use.