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DesScienceExposure Overview

Attribute name	Attribute type	Docstring
AxisLengths	ListOfInteger4	List of lengths of each data axis. Analogous to a list of FITS NAXIS1, NAXIS2, ... , NAXISn keywords.
AxisNumber	int	The dimensionality of the data (e.g., number of physical image axes/dimmensions). Analogous to the FITS NAXIS keyword.
DataLength	int	Total number of individual value elements (pixels, voxels, etc.) in the data set referred to in this instance. Equivalent to AxisLength_0 * AxisLength_1 * ... * AxisLength_AxisNumber.
DataSize	int	Size of an individual data element, in bits, following the FITS convention (i.e., negative for floating point values) such that the total size of the data array is \|DataSize\| x DataLength bits.
DataStorage	DesScienceExposureFitsFile	Storage container for the science exposure
ExposureGroup	int	expnumber - (expnumber modulo 10) for PPO grouping of 10 exposures.
ExposureNumber	int	Exposure number of the science exposure
ExposureTime	ExposureTime	Exposure time of the detector elements (i.e., physical pixels) or detector integration time in seconds. This can be a sum or average value of multiple exposures/integrations in some cases, and can be zero for certain calibrations. Analog to FITS EXPTIME keyword.
Filter	BaseFilter	Instrument filter name. Possible values are DECAM_g, DECAM_r, DECAM_i, DECAM_z and DECAM_Y
ImgArea	ImgArea	Information about the coverage of the image relative to the full focal plane. This can refer to an individual detector, a sub-region of a detector, or even multiple detectors (e.g., a quadrant or entire focal plane). In other words, it would be any logical data segment that normally would be stored in a data array.
ImgNumber	int	Number of image areas (ImgArea) representing a single observation or exposure.
ImgSpatialFootprint	SpatialFootprint	This spatial area defines the spatial footprint of the image either in a serie of vertex that is more accurate than a bounding box or a bounding box. Vertex should be expressed in RA/DEC as the bounding box. This spatial footprint could be processed by LE1 with pointing parameters and updated by VIS/NIR/EXT processing functions that compute the astrometric solution. This is optional in case of calibration images.
ImgStatistics	ImgStats	Information about the statistics of the image pixels [None]
ImgType	DataProduct	Complex description of the image type based on ESO definitions.
Object	str	Object name. Examples: DES survey hex 906-339 tiling 8, Field 74
Observation	DesObservation	Information about the observation
Saturate	float	Global saturation threshold valid for amp A and B
SimInputConfId	str	This Id is inherited from the sim request that was used to process this simulated image. This Id is present ONLY if the productCategory is set to SIMULATION. This Id could transport a full description of the SIM processing parameters or a shortcut for this configuration : CAMPAIGNTTGRISM, ROTATE90GAL,...

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