Next: Modes of Operation Up: CCD Scientific Performance Previous: Field of View . Thermal excitation of charge carriers from the valence to the conduction band creates a dark current signal which may vary with position in the array, and also has temporal shot noise variation. ... In a device devoid of localized defects which give rise to individual dark current spikes , most dark current arises from electrons generated at interface states at the surface. ...

Next: Graphics Display Up: Commands Grouped by Previous: Image Directory and . ... CREATE/CURSOR Create cursor window . ... CUTS/IMAGE Set display thresholds for image . ... DISPLAY/CHANNEL Display image loaded into channel . ... EXTRACT/CURSOR Extract a subframe from the frame currently . ... LOAD/CURSOR Display cursor into display device (DeAnza only) . LOAD/IMAGE Load image into display device . LOAD/ITT Load an intensity transfer table . ... LOAD/TABLE Display table data on image display . ...

For historical reasons, it is useful to offer comparisons between the current WFPC2, and its predecessor WF/PC-1, which was returned to Earth in December 1993. Field format: WF/PC-1 contained 8 cameras and CCDs, each CCD having 800 x 800 pixels. ... Many differences derive from the fact that the WF/PC-1 CCDs were thinned, backside illuminated devices whereas the WFPC2 CCDs are thick, frontside illuminated devices. ... WFPC2 devices have much less CTE error, and hence no preflash is used. ...

The left mouse button controls the creation and manipulation of region markers or cursors. ... Text When a marker type of selected, new markers of that type can be created using the left mouse button. The current default marker type is displayed below the menu. ... Set Default Marker Name (and Color) . ... Reset the fix parameter state of currently existing markers to match the global state set by the -fix command switch or by the Edit Global Fix Params For New Markers option in the Markers menu. ...

Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... Предыдущий выпуск (N335) . ... Обсудить на форуме Scientific.RU . ... Подписка на рассылку обзоров на Subscribe.Ru . Обзоры препринтов astro-ph . ... Собственно обзоры препринтов. ... Ранее обзоры также были на Астронете и на Scientific.Ru . ... АНКи доступны на Астронете , а с 2006 по 2008 г. также на сайте Элементы.Ру . ... Ранее они также размещались на сайте Астронет и в архиве моих обозрений (кодировка KOI8) на сайте Scientific.Ru . ...

... Charge Coupled Devices (CCD) are currently by far the most widely used type of detector in astronomy. ... After a brief introduction to the VLT Control System, the VLT CCD Detectors Control Software is presented. The VLT Control System is a distributed system consisting of a set of UNIX Workstations, dedicated to high level operations, such as coordination of sub-system activities and interface to the users, and VME-based Local Control Units (LCU), dedicated to the control of sub-systems hardware. ...

. To display the value of each alias known to the shell enter the command: alias . To display the current value for a particular alias use the command: alias name_of_alias . For example to display the current value of the alias named print : alias print lpr \1* -Pps5 . This informs you that print is an alias for the command lpr \1* -Pps5 .

Displays the current status of Echelle spectrograph and allows you to change the configuration. ... Select TUI:Save Window Positions to remember the state of this checkbutton. ... The contextual menu on each control can return that control to the current setting of the instrument. ... Note that it saves the state of the controls, not the actual state of the instrument, so you can save any preset you like without commanding the instrument. ... Then change any controls you like and press Apply to apply. ...

... spectrum . ... sfit . ... define >macro_name< : define a macro . ... meth_range <w1> <w2>: Set wavelength range for fit . data_spectrum <name> : data in "spectrum" format . ... data_sigma <sigma> : define mean standard error in data . ... data_line_set | ... NB: synth uses multiple calls to spectrum , so various Spectrum commands may also be required. synth : find optimum fit by adjusting abundances, v turb , v sin i , and v rad . ... save <fit> : Save the spectrum and best fit from synth . ...

. Project Identification: . Source Name: . Observation Date: . (yyyy/mm/dd) . Start Date: . End Date: . Source Position: . RA (J2000): . h m s . Dec (J2000): . o ' '' . Search box in arcminutes: . +/- (Default 10 arcminutes meaningful . only when both ra dec are specified) .

... ALMA . ... Technical notes . ... ATM and AATM . What is ATM? ... Current version: V0.1 . ... ATM is a library of routines for modelling transmission of cm/mm/sub-mm wavelength radiation through the Earths atmosphere. ... AATM is a re-packaging of the version of ATM as used by the ALMA online calibration software "TelCal". ... Please note this is a BETA version . ... NEWS file extract: Version 0.08 ------------ UPSTREAM TRACKING: Synchronised with the current version of ATM in the ALMA CVS Trunk. ...

The Common Output Area (COA) on the terminal screen is the remaining top area of the terminal screen not used for the User Command Area or Task Status Area. It is a viewport on the log file. Hermes treats the log file as a ``book'' with numbered pages. ... The COA has two modes of operation: page mode and non-page mode. ... The current page number is displayed at the extreme right of the Task Status Area. ... When in non-page mode, Hermes can also scroll the COA instead of flipping pages. ...

Next: The exercise level Up: Using Ceilidh as a Student Previous: Using Ceilidh as a Student . ... This menu is identical whether it is obtained from the system level of Ceilidh using the sc command, or by entering Ceilidh with a -c argument. ... Course Summary button) If the teacher remembers to keep the information up-to-date, this command gives you a summary of the timetable for your course, with . ... ceilidh -c pr1 . ... If you entered the course level from the system level using first ceilidh . ...

To see the manner in which position of planets and their coordinates vary with time click on icons with arrows Right or Left in menu bar. ... The current moment of time and object coordinates are therewith displayed. ... Clicking on icons with symbols of sun or crescent leads to appearance of images of the Sun or the Moon in that point of the sky which correspond to their coordinates in current moment unless it lies within not displayed region; see below). ...

... JavaScript 1.1: added current, next, and previous properties. ... To change a window's current URL without generating a history entry, you can use the Location.replace method. ... For example, if the history list contains three named entries, these entries are reflected as history[0] , history[1] , and history[2] . ... back . ... onClick="history.go('home.netscape.com')"> The following button navigates to the URL that is three entries backward in the history list: <P><INPUT TYPE="button" VALUE="Go" ...

There are 5 main areas in the display, the menu bar at the top, the locator bar just below, the toolbar along the lefthand side of the display, the status bar at the bottom, and the drawing area where graphics are drawn. ... The toolbar runs along the lefthand side of the display, and provides functions to manipulate the axes scaling of active graphs, by scrolling and mouse powered zooms. ... Click on Draw to freshenup the drawing area with the current set of graphs, parameters and active sets. ...

Next: Future plans Up: Electronic database Previous: Electronic database . The JPDOC gives access to references to the papers, data files and links to the internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to the radio domain. ... The database also provides links to internet collections of optical data files and personal WWW pages with relevant software and includes some other useful information. ...

... This appendix is informative, not normative. ... FIELDSET, FORM, FRAME, FRAMESET, H1, H2, H3, H4, H5, H6, IFRAME, NOFRAMES, OBJECT, OL, P, UL, APPLET, CENTER, DIR, HR, MENU, PRE { display : block } LI { display : list-item } HEAD { display : none } TABLE { display : table } TR { display : table-row } THEAD { display : table-header-group } TBODY { display : table-row-group } TFOOT { display : table-footer-group } COL { display : table-column } COLGROUP { ...

... Research . ... Independent University . ... Associate Professor , Department of Mathematics , National Research University Higher School of Economics , Moscow, Russia . ... Vice-President , Independent University of Moscow , Moscow, Russia . ... Research Fellow , Laboratory of Algebraic Geometry and its Applications , National Research University Higher School of Economics , Moscow, Russia . ... Sep. ... Specialist degree in Mathematics (M.Sc. equivalent), Independent University of Moscow , Russia ....

... hstpolima: Reduce linear polarization data for HST instruments (currently FOC, NICMOS and WFPC2 are supported). ... Images for the three Stokes parameters (I,Q and U), the linear polarization and position angle and their error images are output. hstpolpoints: Reduce linear polarization data for HST instruments for a set of circular apertures. ... There is a web page http://www.stecf.org/software/impol/ briefly describing the package and giving example polarization maps for HST and model data. ...