... Meta Index / Home Page / Description / Example expressions These sample boolean expressions demonstrate the filtering of an event list table with columns RAWX , RAWY , PHA , PATTERNID , CCDID , PHASE , TIME , and FLAG : . ... select all events with X coordinates greater than or equal to 100; exclude the 10th event anyway . ... select all events with PATTERNID equal to 4 . ... select events which have been selected in the previous selection run and have PHA values greater than or equal to 10 . ...

This document contains a summary of the user interface for filtering rows in binary tables. Table filtering allows a program to select rows from an table (e.g., X-ray event list) by checking each row against one or more expressions involving the columns in the table. When a table is filtered, only valid rows satisfying these expressions are passed through for processing. ... select rows whose pha value is exactly 10 . ... 10 pha select rows whose pha value is in the range of 10 to 50 . ...

The Linear Ramp Filters (LRFs) provide a narrow band ( ) imaging capability which is continuously tunable from 3710е to 9762е. These are essentially a collection of narrow band interference filters whose central wavelength varies with position on the filter glass. ... If it is necessary to know which CCD will be used, observers can consult Table 3.7 or Table 3.8 , or use the on-line LRF calculator tool on the WFPC2 WWW pages. ... See Linear Ramp Filters for further details on LRFs.) ...

Chapter 11. Specifying OpenGL Environment Variable Settings . ... Several antialiasing methods are available and you can select between them by setting the __GL_FSAA_MODE environment variable appropriately. ... To see the available values for __GL_FSAA_MODE along with their descriptions, run: nvidia-settings --query=fsaa --verbose . The __GL_FSAA_MODE environment variable uses the same integer values that are used to configure FSAA through nvidia-settings and the NV-CONTROL X extension. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Maximize a minimum filter . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

ntpdate [ -bBdosu ] [ -a key ] [ -e authdelay ] [ -k keyfile ] [ -o version ] [ -p samples ] [ -t timeout ] server [ ... ] . ntpdate sets the local date and time by polling the Network Time Protocol (NTP) server(s) given as the server arguments to determine the correct time. ... A number of samples are obtained from each of the servers specified and a subset of the NTP clock filter and selection algorithms are applied to select the best of these. ... The default is /etc/ntp.keys . ...

To proceed to drawing tracks of some objects select Tracks item in menu bar and then select Input Data in drop-down menu. Enter initial and final dates of time interval in corresponding data fields of the Input Data dialog box Input Data . ... The frame with horizontal and vertical scales corresponding to the right ascension and declination axes appears on screen. ... Depending on specifications introduced in the Input Data dialog box the picture represents tracks up to three different objects. ...

... Visited 5572 times - Selected 51 months ago . ... Visited 6948 times - Selected 51 months ago . ... Visited 4688 times - Selected 51 months ago . ... Visited 7791 times - Selected 51 months ago . ... Visited 9271 times - Selected 51 months ago . ... Visited 7887 times - Selected 51 months ago . ... Visited 4431 times - Selected 51 months ago . ... An online resource for building customized observing lists based on a database with over 10,000 deep sky objects. http://www.virtualcolony.com/sac/ . ...

... Forms . ... This page explains how you can embed input forms into wiki pages. ... Forms processing can be found in the Cookbook (see below). ... input text name value size= n :) (: input hidden name value :) (: input password name value :) (: input search name value :) (: input number name value min=x max=y step=z:) (: input email name value :) (: input url name value :) (: input date name value :) (: input radio name value label checked=checked:) (: ...

... Now click on HIDE and all non-PRISM observations should disappear. ... Can be accessed with visTable = oirGetVis(filename, wave=wave) with wave optional visTable.visamp is an array of (nWave) correlated fluxes (Jy) visTable.visphi is an array of (nWave) differential phases (degree) visTable.visamperr contains the estimated rms of visamp visTable.visphierr contains the estimated rms of visphi wave contains nWave values of the wavelength (microns) .photometry Produced by oirChopPhotometry. ...

... public class Analyzer . ... This plugin implements ImageJ's Analyze/Measure and Analyze/Set Measurements commands. ... static int . ... Constructs a new Analyzer using the specified ImagePlus object and the current measurement options and default results table. public Analyzer ( ImagePlus imp, int measurements, ResultsTable rt) . ... Returns true if an image is selected in the "Redirect To:" popup menu of the Analyze/Set Measurements dialog box. public static void setRedirectImage ( ImagePlus imp) ....