Next: Retrieving demonstration and Up: Introduction Previous: Introduction . As described in Chapter , the reduction of long slit spectra comprises three main steps: . ... correction for distortions perpendicular to the dispersion direction ( e.g. , due to differential refraction in the earth's atmosphere) . ... First-time users may find it useful to follow it as it stands, step by step, in order to become acquainted with the plain technical operation of the available commands. ...

... Since 2011 our observatory is a member of GLORIA (GLObal Robotic telescopes Intelligent Array for e-Science) project - wide international collaboration of 13 scientific institutions from 8 countries aiming at opening public access to robotic telescopes, as well as propagating astronomy in general. The GLORIA Project offers Internet users the possibility of studying the sky from professional observatories. ... The experiments are available at the users site of GLORIA. ... About GLORIA . ...

Next: The course and unit level Up: Ceilidh - On Line C Tutoring System Previous: Introduction . ... To enter the system at the general level, the appropriate command (which should have been set up by your computer systems administrator) is . ... q quit this session fs find student | ... text ceilidh only) in X the courses available appear on main window.This command tells you which courses are available and supported by the Ceilidh system, their full title and their abbreviation. vp . ...

... Corresponding gates in each row are connected in parallel at both edges of the array. ... Other gates. ... otherwise indicated, 45 kpixels/sec and standard voltages using a dual slope CDS circuit (8 µs integration time) Minimum Format Pixel Size Imaging Area Dark current (MPP), 20° C equivalent Readout noise Front Back Full Well signal Output gain CTE per pixel Typical 512 x 512 pixels 24 µm x 24 µm 12.3 mm x 12.3 mm 50 pa/cm2 5 electrons 7 electrons 350,000 electrons 1.5 µV/ electron 0 ...