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Published September 12, 2012 | Published
Book Section - Chapter Open

Control interface concepts for CHARA 6-telescope fringe tracking with CHAMP+MIRC

Abstract

Cophasing six telescopes from the CHARA array, the CHARA-Michigan Phasetracker (CHAMP) and Michigan Infrared Combiner (MIRC) are pushing the frontiers of infrared long-baseline interferometric imaging in key scientific areas such as star- and planet-formation. Here we review our concepts and recent improvements on the CHAMP and MIRC control interfaces, which establish the communication to the real-time data recording & fringe tracking code, provide essential performance diagnostics, and assist the observer in the alignment and flux optimization procedure. For fringe detection and tracking with MIRC, we have developed a novel matrix approach, which provides predictions for the fringe positions based on cross-fringe information.

Additional Information

© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). We thank our colleagues from the CHARA array for support in the commissioning and operation of MIRC-6T and CHAMP. This work was performed in part under contract with the California Institute of Technology (Caltech) funded by NASA through the Sagan Fellowship Program.

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August 19, 2023
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