COS Instrument Handbook for Cycle 24 . ... Cosmic Origins SpectrographInstrument Handbook for Cycle 24 > Chapter 13: Spectroscopic Reference Material > 13.6 The COS User Coordinate System . ... The COS User Coordinate System . ... In this figure, the x and y axes denote the COS user coordinate system. In this system, x lies along the wavelength (dispersion) axis and increases with increasing wavelength for both the FUV and NUV channels. ... The x and y axes denote the COS user coordinate system. ...

... IRAF View . This is the orientation of the image as viewed in an image display via IRAF (e.g. ximtool, saoimage). Note: This is different from the orientation of the image as viewed on a Macintosh, via Remark . ... A +X, +Y instrument offset will move a star in the direction indicated by the arrows. ... Note: The offset direction depends upon which interface the offset command was issued in! ... Note: This is different from the orientation of the image as viewed by IRAF. ...

... insbs instrument=<instr> ra=<ra> dec=<dec> apos=<apos> bstoolsout=true|false . ... Given the viewing direction of the star tracker in terms of Right Ascension and Declination of the boresight + astronomical position angle insbs computes the viewing direction of the instrument specified via the instrument parameter - result is written to stdout in verbose form (default) or as a strbs command line if bstoolsout =true. ...

The Optical Solar Sensor (OSD) has been designed to determine the direction towards the center of the Sun's visible disc. The direction to the Sun is computed in the instrument coordinate system relative to the pixels' position on the linear CCDs illuminated with the light passed through the incoming coding mask. The OSD coding mask has three groups of slits with three slits in each group. This mask configuration provides for reliability increase as well as for the required accuracy. ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

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Cameras for TDI Applications Princeton Instruments offers several rectangular format cameras that are ideal for TDI applications, which require high resolution in one direction only. This allows for a lower cost system with the same high dynamic range and performance of square format imaging arrays. ... TDI Applications Imaging of conveyor belts is a common industrial application of TDI. ... Many non-destructive inspection applications require economical high resolution Xray imaging. ...

Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

The VLTI Calibrator Selector Tool is a tool intended to assist in the selection of suitable interferometric calibrators for VLTI observations with MIDI and AMBER. It uses a model of the VLTI and its instruments to assess the fringe visibility, given the observed bandpass, the geometry, spectrum, and coordinates of the target and the time at which the observations are to be made. ... The tool offers an HTML/Java based interface and consists of two pages. ... The quality flag depends on LDD_chi2. ...