Data Preview 0.2

Data Preview 0.2 contains the image and catalog products of the Rubin Science Pipelines v23 processing of the DESC Data Challenge 2 simulation, which covered 300 square degrees of the wide-fast-deep LSST survey region over 5 years.


Object

Properties of the astronomical objects detected and measured on the deep coadded images.


Source

Properties of detections on the single-epoch visit images, performed independently of the Object detections on coadded images.


ForcedSource

Forced-photometry measurements on individual single-epoch visit images and difference images, based on and linked to the entries in the Object table. Point-source PSF photometry is performed, based on coordinates from a reference band chosen for each Object and reported in the Object.refBand column.


DiaObject

Properties of time-varying astronomical objects based on association of data from one or more spatially-related DiaSource detections on individual single-epoch difference images.


DiaSource

Properties of transient-object detections on the single-epoch difference images.


ForcedSourceOnDiaObject

Point-source forced-photometry measurements on individual single-epoch visit images and difference images, based on and linked to the entries in the DiaObject table.


Visit

Metadata about the pointings of the DC2 simulated survey, largely associated with the boresight of the entire focal plane.


CcdVisit

Metadata about the 189 individual CCD images for each Visit in the DC2 simulated survey.


CoaddPatches

Static information about the subset of tracts and patches from the standard LSST skymap that apply to coadds in these catalogs


MatchesTruth

Match information for TruthSummary objects.


TruthSummary

Summary properties of objects from the DESC DC2 truth catalog, as described in arXiv:2101.04855. Includes the noiseless astrometric and photometric parameters.


SDM Schemas is maintained by Rubin Observatory.