IRSA hosts a diverse collection of simulated astronomical datasets spanning multiple missions and science domains; designed to support survey planning, algorithm development, and scientific exploration. Because this collection is heterogeneous in coverage, structure, and intended use, the simulated products are released with detailed documentation. Access methods are tailored to the structure and scale of each product. These tutorials are designed to help users get started with accessing, visualizing, and analyzing simulated datasets hosted at IRSA.
OpenUniverse2024¶
OpenUniverse2024 simulates the overlapping imaging surveys to be carried out by the Nancy Grace Roman Space Telescope and the Vera C. Rubin Observatory, covering roughly 70 square degrees of matched optical and infrared sky. Start with the Quickstart tutorial, which introduces the directory layout, the parquet catalogs, and the image search that the other tutorials build on.
Access OpenUniverse2024 Roman and Rubin images and catalogs.
Use Firefly to explore the structure of the OpenUniverse2024 Roman and Rubin simulations and visualize their content.
Explore the OpenUniverse2024 Roman Time Domain Survey observation sequence and animate a simulated SN Ia across epochs.
Locate a simulated TDE in OpenUniverse2024, retrieve Roman images, and build a multi-epoch light curve.
Fit spectral energy distributions for OpenUniverse2024 supernova host galaxies using Prospector.