Speaker
Description
The pointing of Cherenkov telescopes is subject to imperfections which are, e.g. related to
the bending of the mechanical structure. These imperfections must be measured, modeled and finally corrected for to
achieve an optimal telescope pointing precision. The measurement of pointing deviations is typically
performed while the telescope points to different stars and a CCD camera
monitors the offsets of the star images to the center of the focal plane. Outlier in these
measurements can propagate into the pointing model and lead to imprecise model predictions.
CTbend is a simple and standalone open-source framework which uses a Baysian
analysis with an outlier resilient likelihood function to model the pointing of Cherenkov
telescopes with parametric standard models like TPoint.
The framework is in the following described on the basis of simulated data.
Keywords
Cherenkov telescope; pointing model; Baysian statistics
| Subcategory | Experimental Methods & Instrumentation |
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