Roman Software and Simulation Tools

Software and tools for the Nancy Grace Roman Space Telescope are being developed by several partners. This page provides access to tools created and supported by STScI as well as links to the resources provided by partner institutions.

Wondering which tool will best meet your needs to simulate Roman Wide Field Instrument (WFI) imaging data? Not sure where to start? This RDox article can help you decide which tool to use!

  • Jupyter Footprint Viewer

    The Jupyter Footprint Viewer created by MAST enables viewing telescope footprints on the sky using Aladin. An overview of the Roman capabilities is available on RDox.

    Horsehead Nebula with WFI MAST footprint overlay
  • Roman WFI ETC

    The Roman WFI Exposure Time Calculator consists of Pandeia, a Python engine for high-fidelity simulations, the ETC Web Interface, a browser tool that enables sharing with colleagues, and RIST, a simplified version for quick-look purposes.

    Pandeia simulation scene
  • STPSF Simulation

    Software for calculating high-fidelity point-spread function (PSF) models for Roman and adapted from JWST for precursor science planning.

    STPSF simulations
  • STIPS

    The Space Telescope Imaging Product Simulator generates complex astronomical scenes over a field of view equivalent to a single WFI detector. It uses instrument models and library catalogs for a range of stellar and/or galactic populations.

    Simulated Roman Observation of M31
  • Roman I-Sim

    The Roman Image Simulator generates uncalibrated (level 1) and calibrated (level 2) WFI imaging data for all 18 detectors. These products are compatible with the Roman data pipelines.

Resources from Our Project Partners

Nancy Grace Roman Space Telescope insignia

The NASA Nancy Grace Roman Space Telescope is managed by NASA/GSFC with participation of STScI, Caltech/IPAC, and NASA/JPL.

Contact the Roman Team