EMIR Optimized Slits Positioner (OSP) is an aplication written in java, using the JSkyCat library and implementing algorithms to search and validate optimized project masks. The Multi-Object Spectroscopic (MOS) system of EMIR is composed of a robotic reconfigurable multi-slit mask or Cold Slit Unit (CSU). It can be able to obtain 55 spectra simultaneously and this tool is needed to optimize the science targets in our field, simulate the final characteristics of the 2D spectra on the detector, and allow the user to perform the configuration of all the slits though a Graphical User Interface.

At the preliminary version of the OSP is needed an exception.  By adding application URL to the Exception list allows users to run Rich Internet Applications (RIAs) that would normally be blocked by security checks.  See: https://www.java.com/en/download/faq/exception_sitelist.xml.



The output is an XML file describing the complete shape of the mask.  Individual slits are specified by their central position on the field, their length, and their width. These values have to be specified for each slit, together with the position of the center and the orientation of the field. The 2D distribution of sources is to be taken from a preexisting image, real or simulated, or from a given catalogue. The OSP will be mainly used during the preparation phases of an observation (Phase II of GTC).

To send comments or bug detection please, do not hesitate to mail @: osp-support(at)ast(dot)obs-mip(dot)fr