Camera A Name --- Usual Name of the camera. ass. UCD:INST_ID Camera A Observatory/Institute/Team --- Name of the Institute 's team maintaining \the camera and responsible for the using conditions. suggested: INST_PARAM ou INST_CURATOR* Camera I Number_of_ detectors --- Number of detector elements (CCD chips for examples) suggested UCD: INST_PARAM Camera A Detector_type --- Type of detectors used for this camera. sugg.UCD: INST_TYPE or INST_DET_TYPE* Camera A Link_to_documentation --- Url, documentary resource describing the camera \ properties. suggested UCD: DATA_LINK Camera A Geometrical_Description --- Geometrical arrangement of the detectors: \ Matrix, Size, Arrangements.... suggested UCD :INST_PARAM or INST_GEOMETRY* or DATA_LINK Coding A Type_of_Coding --- Describes how the pixels values are coded in this particular StoredImage. sugg.UCD: IMAGE_CODING_FORMAT* Coding I Nb_scales --- Number of resolution scales available in the coded data.\ E.g: 1 for a single image plane in original FITS format, 5 for a MRC compressed image , etc... \ sugg.UCD: NUMBER Coding A Documentation --- Information about the coding format, as a url or a local file. \ sugg. UCD: DATA_LINK Coding A Coding_prog --- Name and possibly url to describe the program used for compression. \ (ex MR_COMP, cjpeg, hcompress) sugg.UCD: ID_PROGRAM* Coding A Decoding_prog --- Name and /or url to describe the decoding program (decompression). sugg.UCD: ID_PROGRAM* Detector A Name --- Usual name of the device. ass:ID_MAIN sugg:INST_ID Detector A PhysicalProperties --- url for Technical information about shape, size, \ geometrical arrangement of the detector, sensitivity, etc... sugg.UCD: DATA_LINK Detector F PixelWidth um Pixel size, detector elements dimensions ass.UCD:INST_PIXSIZE Detector A DetectorType --- Type of detector e.g. : CCD type, brand, technology . sugg. INST_DET_TYPE* Detector F Gain --- multiplicative gain of the detector ass.:INST_PARAM Detector F SensitivityLimit mag limit of sensitivity for the detector ass.:INST_DET_LIMIT Digitising_Machine A Digitising_Machine_Name --- Usual name of the digitising machine (service) . sugg.:UCD INST_ID Digitising_Machine A Observatory/Institute/Team --- Name , address and contact information of the Institute 's \ team responsible for the machine. sugg.UCD: INST_CURATOR Digitising_Machine A SensorDeviceReference --- Sensor Device reference name \ (Brand, reference model, etc..) sugg.UCD: INST_ID Digitising_Machine A Bibliographic_Reference --- Link to some documentation.describing the caracteristics \ of the machine. ass.UCD: DATA_LINK Filter A FilterName --- Usual name of the band observed sugg. UCD : ID_FILTER or INST_ID Filter A Identifier --- Reference ID of the filter, according to the Instruments settings. sugg.UCD: ID_ALTERNATE Filter F Minimal_wavelength nm Minimal value for the bandpass. sugg.UCD: INST_BANDPASS Filter F Maximal_wavelength nm Maximal value for the bandpass. sugg.UCD: INST_BANDPASS Filter F Effective_wavelength nm Effective wavelength for this bandpass. ass.UCD: INST_WAVELENGTH_EFFECTIVE Filter uri Filter_response --- Bibliographic_reference to the Response of the filter. Link to a url documentation file,\ articles, curves, etc... describing the physical caracteristics of the applied Filter. sugg.UCD: INST_FILTER_FWHM or DATA_LINK Geometry I Nb_dimensions --- Number of dimension of the data. sugg.UCD: NUMBER Geometry I Dimension_tab --- Table of axis dimensions. \ Describes the range of the data on each dimension axis. sugg.UCD: NUMBER Geometry I PixelCoding --- Coding convention used\ for pixel values in the original observation file: (cf FITS BITPIX keyword) sugg.UCD: DATA_TYPE Instrument A Name --- Usual Name of the instrument. sugg.UCD: INST_ID Instrument A Inst_Type --- Instrument Type name. \ E.g.: Spectrometer, Photometer, Spectro-imager. ass.UCD: INST_TYPE Instrument A Instrument_Mode --- Name of the instrument mode. sugg.UCD: INST_PARAM LinktoPixels A Filename_Identifier --- File name and full pathname . ID_FILE LinktoPixels I Size_of_File Mbytes Space required for the file in Mbytes for example. NUMBER?? LinktoPixels A Type_of_File --- Type of the file. DATA_TYPE or IMAGE_CODING_FORMAT* Observation A Observation_Name --- Name of the observed object or other naming convention. \ sugg.UCD: ID_TARGET or OBS_ID Observation A ReferenceNumber --- Internal reference number for this observation. sugg.UCD: ID_ALTERNATIVE Observation F PositionAngle deg Position angle of the image Y-axis (column) with respect to the North \ direction. Used to compute the spatial coverage of the observation. ass.UCD: POS_POS_ANG Observation F Size_alpha {type}, {type} deg Define the rectangular domain aligned with RA and DEC \ directions that includes the observed region. sugg.UCD: OBS_SIZE_RA* Observation F Size_delta deg sugg.UCD: OBS_SIZE_DEC Observation F PixelSize arcsec Pixel size measured in sky distance units (e.g. arc seconds). sugg.UCD: INST_PIXSIZE Observation A Origin --- Refers to the information about the curator of the reduction pipe-line \ (sometimes many different partners). sugg.UCD: REDUCT_CURATOR* Observation A CodingType --- OriginalCoding Coding used to distribute the data : FITS for example. \ sugg.UCD: IMAGE_CODING_FORMAT* Observation A Available_Codings --- Stores the different available codings of the image. (JPEG,MRC,PNG,...) sugg.UCD: IMAGE_CODING_FORMAT* Observation A Image_Type --- Imaging modes, or different products of the reduction. For example:\ Weight-maps, Co-added images,etc... sugg.UCD: OBS_TYPE or DATA_TYPE ? Observation A Processing_History_summary --- Short description of the reduction process. sugg.UCD: REMARKS or DATA_LINK Observation WCS_data Astrometric_Solution --- Codes the result of the astrometric reduction inside the \ processed image (e.g. all or part of WCS_coefficients) sugg.UCD: OBS_CALIB Observation A Available_Catalogs --- Link to catalogs containing sources or other astronomical objects on \ this Observation. sugg.UCD: DATA_LINK Observation I ReductionStatus --- To code the reduction level. This is linked somehow to the number \ of processing steps applied to the original raw observation. Ex: reduction level : level 1, level2 in Chandra , ... sugg.UCD: REDUCT_STATUS* Observation_Group A Definition --- To describe the purpose of this grouping: \ Spectral selection, position selection, or other. suggested UCD:DATA_LINK Observation_Group A Name --- Usual name if this is suitable for the selection criterion suggested UCD:ID_DATASETW Observation_Group A Selection_Criteria --- List of the selecting criteria suggested UCD:CLASS_MISC Observation_Group A Selection_Range --- Range of values selected for the specified criterion... suggested UCD: DATA_RANGE* ObservingProgram A Copyright --- Link to copyright informations, \ how the data can be used and acknowledged and further distributed. suggested UCD:DATA_LINK ObservingProgram A BibliographicReference --- General description of the ObservingProgram. sugg. UCD:DATA_LINK ObservingProgram A Type --- Type of observation campain:survey, etc... sugg.UCD: ARCHIVE_TYPE* ObservingProgram A Available_Catalogs --- Pointer to catalogs built from this ObservingProgram. sugg. UCD:DATA_LINK ObservingProgram A SpectralCoverageName --- This attribute reminds the spectral domain \ covered by the related ObservingProgram, using usual names or acronyms. suggested UCD:INST_BANDWIDTH ObservingProgram A SpectralCoverageUnits --- Units used to code the spectral range of the \ observations in this collection. sugg.UCD: UNITS ObservingProgram A SpectralCoverRange --- Spectral range of the observations in \ this collection. sugg.UCD:SPECT_RANGE ProcessingPipeLine A ProcessingHistory --- General schema of a\ processing pipeline. Coded as an url to a bibliographic reference. suggested UCD: DATA_LINK ProcessingPipeLine A VersionIdentifier --- Identifies the version \ of this pipeline. suggested UCD:ID_VERSION ProcessingPipeLine A Valid_from date Observation after this date \ and anterior to the Valid_to date are to be processed with this pipeline suggested UCD: TIME_DATE ProcessingPipeLine A Valid_to date Observation after this date \ and anterior to the Valid_to date are to be processed with this pipeline suggested UCD: TIME_DATE ProcessingStep A Purpose --- Describes the goal of this step. sugg. UCD: DATA_LINK ProcessingStep A Configurationdetails --- Parameters and configuration of the program. sugg. UCD: DATA_LINK ProcessingStep A Parameters --- List of the required parameters. \ E.G: a config file. sugg. UCD:REDUCTION_SETUP* ProcessingStep A Version_number --- Identifier for the version of the program applied for this step. \ sugg. UCD:ID_VERSION ProcessingStep I PipelineStepNumber --- Index, rank of this step in the pipeline. sugg. UCD: ID_NUMBER Simulation A Description --- Simulations conditions, assumptions, etc. suggested UCD: DATA_LINK Simulation A Program_Name --- Program name for this simulation. suggested UCD: ID_PROGRAM Simulation A Copyright --- Copyright information suggested UCD: DATA_LINK Simulation A Bibliographic_reference --- Program_Information : \ suggested UCD: DATA_LINK Curator, computation time, program size, etc.... StorageMapping A Organisation --- How the images are tiled together. \ (e.g. Mosaic of 28x28 patches of 1024 pixels each for ESO Schmidt Photographic plates). sugg.UCD: REMARKS StorageMapping I Nb of patches --- Number of patches constituting the Observed field. sugg.UCD:NUMBER StorageMapping A Indexing --- Describes the method to identify the different images parts. \sugg.UCD: DATA_ARRANGEMENT_METHOD* StorageMapping A Scale_of_Representation --- scale of representation ??? stores the \ information like full resolution, or resolution, preview, ... sugg.UCD: DATA_PROCESSING_SCALE* telescope A Name --- Usual name of the telescope.Related FITS Keywords : TELNAME TELESCOP suggested UCD: TEL_ID telescope PositionLaLo Longitude : Longitude suggested UCD: POS_EARTH_LON cf A.Rots SpaceTime Metadata telescope PositionLaLo Latitude : Latitude sugg.UCD: POS_EARTH_LAT telescope F Height m Altitude ass.UCD: OBSTY_ALTITUDE telescope A Description --- Bibliographic information about the telescope. sugg.UCD:DATA_LINK telescope A Organisation --- Institute responsible for this telescope sugg.UCD: CURATOR telescope A TelescopeType --- Type of the telescope suggested UCD: TEL_TYPE* ??? should we add : TelescopeSize ?? TEL_SIZE View A Visualisation_Coding --- Name of the pixel coding used \ for this view: jpeg, gif, fits, png... sugg.UCD: IMAGE_CODING_FORMAT* View A View_Type --- Type of the representation: multicolor representation (RGB composition)\ resampled image, re-aligned image, etc... sugg. UCD: DATA_TYPE