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SUNRISE III: The Wavefront Correction System

Bibcode
2026SoPh..301...57B
DOI
10.1007/s11207-026-02649-7
Berkefeld, Thomas; Bell, Alexander; Volkmer, Reiner; Heidecke, Frank; Preis, Tobias; Sonner, Thomas; Nakai, Eiji; Korpi-Lagg, Andreas; Gandorfer, Achim; Solanki, Sami K.; del Toro Iniesta, Jose Carlos; Katsukawa, Yukio; Bernasconi, Pietro; Feller, Alex; Riethmüller, Tino L.; Álvarez-Herrero, Alberto; Kubo, Masahito; Martínez Pillet, Valentín; Smitha, H. N.; Orozco Suárez, David; Grauf, Bianca; Carpenter, Michael
Bibliographical reference

Solar Physics

Advertised on:
4
2026
Journal
Solar Physics
Number of authors
22
IAC number of authors
1
Citations
0
Refereed citations
0
Description
This paper describes the wave-front correction and image stabilisation system (CWS) developed for the SUNRISE III balloon-borne telescope, and provides information about its performance as measured during the integration into the telescope and during the 2024 science flight. The fast image stabilisation is done by a correlation tracker (CT) and a fast tip-tilt mirror, low order aberrations such as defocus and coma are measured by a six-element Shack-Hartmann wavefront sensor (WFS) and corrected by an active telescope secondary mirror for automated focus and manual coma correction. The CWS is specified to deliver a stabilised image with a precision of 0.005 arcsec (rms). The autofocus adjustment is specified to maintain a focus stability of 0.01 waves in the focal plane of the CWS.
Type
Refereed
Instrumentation

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