Tom Comeau

Space Telescope Science Institute

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Gregory R. Brady

Space Telescope Science Institute

Keira Brooks

Space Telescope Science Institute

Marshall D. Perrin

Space Telescope Science Institute

Anand Sivaramakrishnan

Space Telescope Science Institute

Charles W. Bowers

Goddard Space Flight Center

Michael Gordon

University of California, Riverside

Bruce H. Dean

Rayat Bahra University

Derek Sabatke

BAE Systems (United States)

G. Hartig

Space Telescope Science Institute

Larkin Carey

Cooperative Institutions

Space Telescope Science Institute

433

Goddard Space Flight Center

152

Johns Hopkins University

Michigan Science Center

University of Arizona

Northrop Grumman (United States)

Max Planck Institute for Astronomy

Max Planck Society

Centre National de la Recherche Scientifique

California Institute of Technology

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

The Science Performance of JWST as Characterized in Commissioning

Publications of the Astronomical Society of the Pacific (2023)

Jane R. Rigby Marshall D. Perrin Michael W. McElwain Randy A. Kimble S. D. Friedman

Abstract This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performance of the spacecraft, telescope, science instruments, and ground system, with an emphasis on differences from pre-launch expectations. Commissioning has made clear that JWST is fully capable of achieving the discoveries for which it was built. Moreover, almost across the board, the science performance of JWST is better than expected; in most cases, JWST will go deeper faster than expected. The telescope and instrument suite have demonstrated the sensitivity, stability, image quality, and spectral range that are necessary to transform our understanding of the cosmos through observations spanning from near-earth asteroids to the most distant galaxies.

10.1088/1538-3873/acb293

Cite

Citations (229)

Phasing the Webb telescope

Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave (2022)

D. Scott Acton Scott S. Knight María Cristina Carrasquilla Nick Weiser Michaela Masciarelli

The James Webb Space Telescope (JWST) is a segmented deployable telescope, currently operating at L2. The telescope utilizes 6 degrees of freedom for adjustment of the Secondary Mirror (SM) and 7 degrees of freedom for adjustment of each of its 18 segments in the Primary Mirror (PM). After deployment, the PM segments and the SM arrived in their correct optical positions to within a ~1 mm, with accordingly large wavefront errors. A Wavefront Sensing and Controls (WFSC) process was executed to adjust each of these optical elements in order to correct the deployment errors and produce diffraction-limited images across the entire science field. This paper summarizes the application of the WFSC process.

Active optics

Secondary mirror

Optical telescope

Field of view

10.1117/12.2633474

Cite

Citations (10)

Coronagraphy for segmented aperture space telescopes: results on the HiCAT testbed

American Astronomical Society Meeting Abstracts #233 (2019)

Rémi Soummer Gregory R. Brady Keira Brooks Tom Comeau Élodie Choquet

Testbed

Aperture (computer memory)

Source

Cite

Citations (0)

Current Status of the High Contrast Imager for Complex Aperture Telescopes (HiCAT) Testbed

American Astronomical Society Meeting Abstracts #231 (2018)

Keira Brooks Gregory R. Brady A. González Brito Tom Comeau Thomas E. Dillon

Testbed

Aperture (computer memory)

High contrast

Source

Cite

Citations (0)

The Science Performance of JWST as Characterized in Commissioning

arXiv (Cornell University) (2022)

Jane R. Rigby Marshall D. Perrin Michael W. McElwain Randy A. Kimble Scott L. Friedman

This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performance of the spacecraft, telescope, science instruments, and ground system, with an emphasis on differences from pre-launch expectations. Commissioning has made clear that JWST is fully capable of achieving the discoveries for which it was built. Moreover, almost across the board, the science performance of JWST is better than expected; in most cases, JWST will go deeper faster than expected. The telescope and instrument suite have demonstrated the sensitivity, stability, image quality, and spectral range that are necessary to transform our understanding of the cosmos through observations spanning from near-earth asteroids to the most distant galaxies.

10.48550/arxiv.2207.05632

Cite

Citations (15)

Characterization of JWST science performance from commissioning

HAL (Le Centre pour la Communication Scientifique Directe) (2022)

Jane R. Rigby Marshall D. Perrin Michael W. McElwain Randy A. Kimble Scott L. Friedman

Characterization

Source

Cite

Citations (4)