HabEx: A high-precision pointing architecture using microthrusters and a fine steering mirror

Milan Mandić; Oscar Alvarez-Salazar; Alina A. Kiessling

doi:10.1117/12.2315545

6 July 2018 HabEx: A high-precision pointing architecture using microthrusters and a fine steering mirror

Milan Mandić, Oscar Alvarez-Salazar, Alina A. Kiessling

Proceedings Volume 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave; 106980U (2018) https://doi.org/10.1117/12.2315545
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

This paper provides an overview of a feasible design architecture that satisfies the strict pointing requirements for the 2020 Astrophysics Decadal Survey Habitable Exoplanet Observatory (HabEx) Architecture A mission concept. Microthruster technology has matured significantly in recent years, with high specific impulse and low-level disturbance making microthrusters the prime candidate for high-precision pointing in upcoming space telescope missions. HabEx’s Architecture A concept utilizes microthrusters as the main actuators for the attitude control system pointing mode and a fine steering piezo-electric-operated mirror is utilized in the inner finepointing loop of the attitude control system. Sensing is undertaken using a high-resolution, low-noise focal-plane camera that can support high readout speeds (> 100 Hz), in addition to a state-of-the-art low-order wavefront sensor, which is currently under technology development for NASA’s Wide Field Infrared Survey Telescope (WFIRST).

Conference Presentation

Citation Download Citation

Milan Mandić, Oscar Alvarez-Salazar, and Alina A. Kiessling "HabEx: A high-precision pointing architecture using microthrusters and a fine steering mirror", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106980U (6 July 2018); https://doi.org/10.1117/12.2315545

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