10 December 1999 Generalized seeing monitor (GSM): a dedicated monitor for wavefront optical parameter measurements
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The Generalized Seeing Monitor is a new instrument for the monitoring of the atmospheric optical parameters (AOP) like the spatial-coherence outer scale L0, the seeing (epsilon) 0 and the isoplanatic angle (theta)0. This instrument, equipped with 4 identical modules, works like a Shack-Hartman and sensor and allows the analysis of the perturbed wavefront (observation of the angle-of-arrival fluctuations at four points. Several measurement campaigns have been done at different sites over the world: Cerro Paranal, La Silla, Cerro Pachon (Chile), Oukaimeden (Morocco) and Maydanak (Uzbekistan). The main results obtained for the AOP (L0, (epsilon) 0, (theta) 0) during these missions are presented and discussed. The whole of these measurements provides an important data bank allowing the analysis of the temporal variability of these parameters.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Aziz Ziad, Aziz Ziad, Francois Martin, Francois Martin, Rodolphe Conan, Rodolphe Conan, Julien Borgnino, Julien Borgnino, } "Generalized seeing monitor (GSM): a dedicated monitor for wavefront optical parameter measurements", Proc. SPIE 3866, Optics in Atmospheric Propagation and Adaptive Systems III, (10 December 1999); doi: 10.1117/12.371320; https://doi.org/10.1117/12.371320


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