Jitter studies for the secondary and tertiary mirror systems on the Thirty Meter Telescope

Virginia Ford; Christopher Carter; Christophe Delrez; Pierluigi Fumi; Eric Gabriel; Daniele Gallieni

doi:10.1117/12.2055036

19 August 2014 Jitter studies for the secondary and tertiary mirror systems on the Thirty Meter Telescope

Virginia Ford, Christopher Carter, Christophe Delrez, Pierluigi Fumi, Eric Gabriel, Daniele Gallieni

Proceedings Volume 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation; 91512H (2014) https://doi.org/10.1117/12.2055036
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The Secondary Mirror System (M2S) and Tertiary Mirror System (M3S) of the Thirty Meter Telescope (TMT) consist of passively mounted mirrors supported in kinematic cell assemblies that are moved during telescope tracking to counteract effects of changing zenith angle and thermal gradients within the telescope structure. TMT is concerned that the requirements for pointing jitter during Adaptive Optics tracking for the M2 and M3 Systems are very challenging with a risk of requiring complex stabilization systems for compliance. Both systems were researched to determine whether similar un-stabilized hardware exists that can meet the TMT jitter requirements. Tests using representative TMT tracking motions were then performed to measure jitter on similar existing hardware. The results of these hardware tests have been analyzed. Test results, remaining risk assessment and further testing plans are presented.

Citation Download Citation

Virginia Ford, Christopher Carter, Christophe Delrez, Pierluigi Fumi, Eric Gabriel, and Daniele Gallieni "Jitter studies for the secondary and tertiary mirror systems on the Thirty Meter Telescope", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91512H (19 August 2014); https://doi.org/10.1117/12.2055036

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