The LSST DESC Data Challenge 1: Generation and Analysis of Synthetic Images for Next Generation Surveys

Understand

Data Challenge 1 (DC1) is the first synthetic dataset produced by the Rubin Observatory Legacy Survey of Space and Time (LSST) Dark Energy Science Collaboration (DESC).

• DC1 is designed to develop and validate data reduction and analysis and to study the impact of systematic effects that will affect the LSST dataset.
• DC1 is comprised of $r$-band observations of 40 deg$^{2}$ to 10-year LSST depth.
• We present each stage of the simulation and analysis process: a) generation, by synthesizing sources from cosmological N-body simulations in individual sensor-visit images with different observing conditions; b) reduction using a development version of the LSST Science Pipelines; and c) matching to the input cosmological catalog for validation and testing.