Expected behavior of the GetStatus operation

OGC 10-135 EO Satellite Tasking Extension for SPS

7.2 Requirements Class: Additional extensions for optical missions

Requirements Class http:www.opengis.netspecEOSPS2.0reqopt Target Type Server Implementation Dependency http:www.opengis.netspecEOSPS2.0reqcore

7.2.1 Introduction

This section defines additional requirements that shall be fulfilled by all EO SPS server implementations supporting tasking of space-borne EO optical sensors. Most requirements are also applicable to client implementations supporting tasking of optical sensors even though no formal conformance testing is defined for clients. Requirement http:www.opengis.netspecEOSPS2.0reqoptdependency-core Req 32. An EO SPS implementation passing the “Additional extensions for optical missions” conformance class shall first pass the core conformance class. Requirement http:www.opengis.netspecEOSPS2.0reqopttasking-params-used Req 33. The EO SPS implementation shall use one of AcquisitionParametersOPT or ValidationParametersOPT class in its DescribeTaskingResponse.

7.2.2 Additional tasking parameters specific to optical missions

7.2.2.1 AcquisitionParametersOPT Class

7.2.2.1.1 Description

This group of parameters is used to specify the acquisition options of an optical instrument in terms of desired resolution, spectral mode, etc.

7.2.2.1.2 Data model

The AcquisitionParametersOPT class is derived from the abstract class AcquisitionParameters defined in the core of this standard and defines a list of simple attributes. 66 Copyright © 2011 Open Geospatial Consortium EO Satellite Tasking Extension for SPS OGC 10-135 «DataType» Core Tasking Parameters:: AcquisitionParameters «DataType» AcquisitionParametersOPT «property» + GroundResolution: RealPair [0..1] + InstrumentMode: ScopedName [0..1] + FusionAccepted: Boolean [0..1] + MinLuminosity: Real [0..1] Figure 18 – UML diagram of the AcquisitionParametersOPT class Name Description Type unit GroundResolution The ground resolution is the distance between two contiguous pixels of remote sensed imagery when projected on the earth. This parameter allows the user to select a range of acceptable ground resolutions. Real Pair meter InstrumentMode A categorical value used to specify a particular instrument configuration. All possible modes should be defined in a code space, usually specific to the type of instrument. ScopedName FusionAccepted Specifies if imagery obtained by fusing several images acquired separately and co-registered is acceptable. Boolean MinLuminosity Minimum luminosity acceptable for the acquired imagery. This constrains the solar incidence angle of the acquired imagery. Real

7.2.2.1.3 SWE Common encoding

The following table and XML snippet describe how this tasking parameters group shall be encoded using the SWE Common Data Model: Field Name Definition Component AcquisitionParameters http:www.opengis.netdefpropertyOGC-EO0optAcquisitionParametersOPT DataRecord GroundResolution http:www.opengis.netdefpropertyOGC-EO0GroundResolution QuantityRange FusionAccepted http:www.opengis.netdefpropertyOGC-EO0FusionAccepted Boolean InstrumentMode http:www.opengis.netdefpropertyOGC-EO0InstrumentMode A default code space is defined by this specification “ http:www.opengis.netdefpropertyOGC-EO0optSpectralModes ” and shall be used when applicable. Category MinLuminosity http:www.opengis.netdefpropertyOGC-EO0optMinLuminosity Quantity swe:field name = AcquisitionParameters swe:DataRecord definition = http:www.opengis.netdefpropertyOGC-EO0optAcquisitionParametersOPT swe:field name = GroundResolution swe:QuantityRange definition = http:www.opengis.netdefpropertyOGC-EO0GroundResolution Copyright © 2011 Open Geospatial Consortium 67