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Roman For Scientists

This section is intended for the Roman Science Community.

Future Mission

Announcements

Page 2 of a coloring book about the Nancy Grace Roman Space Telescope features the spacecraft and some cosmic objects it will observe.

Cycle 1 General Investigator Proposals Now Open

The Cycle 1 Call for Proposals invites investigators to submit proposals to conduct scientific investigations with the Nancy Grace Roman Space Telescope. All Roman data have no exclusive use period, ensuring rapid community access to all science data.  [Proposals are due Tuesday March 17, 2026 at 5PM PDT]

NASA’s Nancy Grace Roman Space Telescope’s three main observing programs, highlighted in this infographic, will enable astronomers to view the universe as never before, revealing billions of cosmic objects strewn across enormous swaths of space-time.

ROTAC Report Released

In April 2025, the Roman Observatory Telescope Allocation Committee (ROTAC) released its recommendations for three Core Community Surveys: the High-Latitude Wide-Area Survey, the High-Latitude Time-Domain Survey, and the Galactic Bulge Time-Domain Survey.

A simulated image of Roman’s observations

RAPID Response: Hot-wiring the Next Generation of Time-Domain Science

March 23-27, 2026 [Pasadena, CA]
This workshop will address the software infrastructure needed to pursue breakthrough science enabled by low-latency alters, multi-wavelength/messenger discovery, machine learning, and science platforms/alert brokers/marshals

Get Involved

Key Resources

Listed below are several resources which provide the mission and instrument parameters, technical performance models, and laboratory measurements.

Roman Observatory Overview

Mission and Observatory Technical Overview
Roman Core Community Surveys
Reference Information
Spreadsheets

Wide-Field Instrument

Survey science with the Wide Field Instrument (Schlieder et al. 2024)
WFI and Observatory Performance
Anticipated performance Tables for the WFI
WFI Triplet Test DataWFI Bright Star Saturation Test Data
WFI Calibration Touchstone Fields Recommendation Report (.pdf)
WFI Bright Star Saturation Response and Persistence Properties (.pdf)
WFI Parallel Observations During Coronagraph Instrument Primary Operations (.pdf)
Roman Overview Papers

100 Hubbles for the 2020s (Akeson et al. 2019)
2015 Report by the Science Definition Team (Spergel et al. 2015)

Coronagraph Instrument

Nancy Grace Roman Space Telescope Coronagraph Instrument Overview and Status (Bailey et al. 2023)
Coronagraph Instrument Parameters
Additional Coronagraph Instrument Parameters, Models and Data
Roman Space Telescope Coronagraph Instrument Public Simulated Images
Coronagraph Fact Sheet (.pdf)
Roman Coronagraph Instrument (.pdf)

Roman Technical Information

Roman Technical Information GitHub

Additional Resources

Listed below are several additional resources that provide information on the Roman mission.

Roman Project Websites

NASA's Roman public website
Jet Propulsion Laboratory (JPL) NASA
Space Telescope Science Institute (STScI)
Caltech/IPAC

Roman Software and Simulation Tools

STScI Roman Science Planning Toolbox
- Roman I-Sim - the Roman Image Simulator
- FOV Overlay Tool
- PSF Simulation
- WFI Exposure Time Calculator
- Complex Scene Simulation (STIPS)

IPAC Roman Simulation Repository


Roman Fact Sheets

Mission & Capabilities Overview (.pdf)Surveying the Sky (.pdf)
Stars by the Billions (.pdf)Galaxies by the Millions (.pdf)
Cosmology (.pdf)
Compiled Spacecraft and Instrument parameters

Roman General Astrophysics Ideas and White Papers

Roman Core Community Survey White Papers
Selection of Roman-related ASTRO2020 decadal white papers
List of Roman-related science papers


SIT Resources

Web interface to Chris Hirata’s WFIRST Galaxy Survey Exposure Time Calculator
Cosmic Dawn SIT javascript WFI exposure time calculator
Formulation Science Team Summary Workshop

Core Community Survey Resources

Supernova Survey memo (.pdf)
High latitude time domain survey presentation (.pdf)
High Latitude Survey memo (.docx)HLS presentation (.pdf)
Microlensing simulation paper (Penny et al) (.pdf)
Galactic Bulge Time Domain Survey presentation (.ppt)
Interim Report: The Community Definition of Roman’s Core Community SurveysRoman Observations Time Allocation Committee (ROTAC) Final Report and Recommendations
These can be found at https://asd.gsfc.nasa.gov/romancaa/ (under Design Reference Mission).

Science Centers

Science Support Center (IPAC) pipelines and science processing (.pdf)
    -  Spectroscopy Processing (.pdf)
    -  Galactic Bulge Time Doman Survey and Exoplanet Microlensing Processing (.pdf)
Science Operations Center (STScI) pipelines and science processing (.pdf)
Roman Documentation (RDox)







Roman Scientists Social Media

We are excited to announce the launch of new social media accounts for scientists who want to work with Roman: @NancyRomanSci

NancyRomanSci is managed by the Roman Science Centers and provides researchers with the most up-to-date information related to doing science with NASA's Nancy Grace Roman Space Telescope.

These accounts will promote and distribute practical aspects of the mission relevant to scientists, including, but not limited to, proposal deadlines, conferences, tools, training opportunities, committee reports, software development, instrument capabilities, observation planning, etc.

Please follow us to get the most up-to-date information related to doing science with Roman: