Updated cryogenic performance test results for the flight model JWST fine guidance sensor

Neil Rowlands; Alexander Beaton; Pierre Chayer; Craig Haley; Calvin Midwinter; Kevin Volk; Gerry Warner; Julia Zhou

doi:10.1117/12.2232172

29 July 2016 Updated cryogenic performance test results for the flight model JWST fine guidance sensor

Neil Rowlands, Alexander Beaton, Pierre Chayer, Craig Haley, Calvin Midwinter, Kevin Volk, Gerry Warner, Julia Zhou

Proceedings Volume 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave; 99044D (2016) https://doi.org/10.1117/12.2232172
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The Integrated Science Instrument Module (ISIM) for the James Webb Space Telescope (JWST) has successfully completed its final cryogenic performance verification tests. The performance of the newly upgraded Fine Guidance Sensor (FGS) / Near Infrared Imager and Slitless Spectrometer (NIRISS) was evaluated in these tests. We describe some of the key guider performance results which have been obtained and compare them to previous results with an older generation of H2RG infrared detector arrays. The identification mode sensitivity improvement is described along with noise equivalent angle (NEA) sensitivity performance improvements in tracking and fine guiding modes. Tracking mode allows the Observatory line of sight to settle in advance of the fine guidance mode and also facilitates moving target observing. The NEA of the FGS-Guiders will in part determine the ultimate image quality of the JWST Observatory.

Citation Download Citation

Neil Rowlands, Alexander Beaton, Pierre Chayer, Craig Haley, Calvin Midwinter, Kevin Volk, Gerry Warner, and Julia Zhou "Updated cryogenic performance test results for the flight model JWST fine guidance sensor", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99044D (29 July 2016); https://doi.org/10.1117/12.2232172

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available