... Logically, tree is a set of tuples, each of different number of children, each of which can also be an inner or leaf tuple. ... SP-GiST core is responsible to map inner/leaf tuple to disk pages and imposes the following restriction - the size of inner or leaf tuples should match a page size, as well as each list of leaf tuples should be placed on the same page. SP-GiST differs pages for inner and leaf tuples, they are called inner and leaf pages respectively. ... Inner tuple consists of: . ...

... While extrasolar planet discoveries are sure to continue, none - so far - points clearly to another planetary system like our own. Take, for example, the newly discovered parent star HD38529. ... No direct picture of the planet was taken - the planet was discovered by the gravitational wobble it created on its parent star, Epsilon Eridani. ... The Coma Cluster of Galaxies . ... The Coma Cluster of Galaxies pictured above is one of the densest clusters known - it contains thousands of galaxies. ...

... Files . ... File List . File Members . casa . Containers . ... 00001 //# RecordField.h: Access to an individual field in a record 00002 //# Copyright (C) 1995,1996,1997 00003 //# Associated Universities, Inc. ... 00176 Int fieldNumber () const 00177 { return fieldNumber_p ;} 00178 00179 // Return the name of the field. 00180 String name () const 00181 { return parent_p -> name ( fieldNumber_p );} 00182 00183 // Is this field pointer attached to a valid record? ...

... This thread contains a step-by-step recipe to extract EPIC (pn will be used as an example) light-curves of a point-like source, starting from a calibrated, concatenated event list (either produced with epproc or available as PPS product; it will bear the name: PN.fits in this thread). The content of this thread is the same as Extraction of a X-ray light curve for a point-like source (command-line version). ... in the lccorr GUI window (see Fig.7) define at least the following widgets: . ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

Hubble Facts HST Program Office Goddard Space Flight Center Greenbelt, Maryland 20771 Hubble Space Telescope GYROSCOPES The gyroscopes, or gyros, on Hubble are needed for pointing the telescope. ... It is the RSU that astronauts change when they replace gyros, so gyros are always replaced two at a time. constant rate of 19,200 rpm on gas bearings. ... Four new gyros were installed during the First Servicing Mission in 1993 and all six gyros were replaced during Servicing Mission 3A in 1999. ...

. To enter several commands on the one command line, use a ; (semicolon) to seperate each one from the next. For example: cd ..; ls -l . This command line contains two commands. The first, cd .. changes the current directory to the parent directory. The second, ls -l produces a long listing of the contents of the curent directory. If necessary you can continue the commands onto another line.

... For instance, motion event handlers are passed a pointer to a GdkEventMotion structure which looks (in part) like: struct _GdkEventMotion { GdkEventType type; GdkWindow *window; guint32 time; gdouble x; gdouble y; ... guint state; ... }; . ... The second field specifies the events we are interested in. ... The "motion_notify_event" and "button_press_event" handlers are pretty simple: static gint button_press_event (GtkWidget *widget, GdkEventButton *event) { if (event->button == 1 && pixmap != ...

... Bojan Nikolic web pages (r. 329) . ... The CASA table tool allows access to all data contained in measurement set format. ... For this reason I have sketched out a simple, python-orientated, wrapper for data access in casata. ... cols = [ "TIME" , "DATA" ] . one gets (unsurprisingly) both the time and the data.. ... msin = "/home/bnikolic/data/almagen/uid___A002_Xa048f_X1.ms" >>> time , visdata = data . ... time , point1 , point2 = data . ... data . ... Accessing measurement set data . ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > Modules . ... To enable mod_dav , add the following to a container in your httpd.conf file: . ... In addition, a location for the DAV lock database must be specified in the global section of your httpd.conf file using the DavLockDB directive: . ... In order for mod_dav to manage files, it must be able to write to the directories and files under its control using the User and Group under which Apache is running. ...

Underdetermined sets is a new type of data structures (terms) developed in Actor Prolog . ... The point is that an underdetermined set can include some indefinite rest (a tail) like a list in usual Prolog . At the same time, the order of elements of an underdetermined set can be arbitrary one and it does not affect results of unification of underdetermined sets. Moreover, Actor Prolog guarantees that a rest of an underdetermined set never contains elements that are explicitly given in the set. ...

... Font enhancements in Communicator include the ability to incorporate downloadable fonts into your web documents. ... The fonts are contained in a font definition file that reside on the host web server with the HTML document. ... Before you can create font definition files, make sure the fonts you wish to use in your web document are installed on your system. ... FONT> </P> . ... For more information about dynamic fonts, see: http://home.netscape.com/comprod/products/communicator/fonts/index.html . ...

... Piping in a C program: < stdio.h > . ... Pipes . ... We use fprintf() and fscanf() to communicate with the pipe's stream . ... plotter.c module */ /* contains routines to plot a data file produced by another program */ /* 2d data plotted in this version */ /**********************************************************************/ #include externals.h static FILE * plot1 , *plot2, *ashell; static char *startplot1 = plot [] [0:1.1]'plot11.dat' with lines, 'plot12.dat' with lines\n ; static ...

... Drop points . ... Pick ops use the point in a set nearest to the location of the pointer when clicked to select the set for the chosen operation. ... To activate a set, select the set number, specify the number of points in the set and click on "Accept." ... Press the button marked Accept . ... Press the button marked Accept to divide the selected set into (length of selected set) / N sets with the remainder to the last set. ... Press the button marked Accept to merge all sets to the selected set. ...

... Source File: mod_negotiation.c . Module Identifier: negotiation_module Content negotiation, or more accurately content selection, is the selection of the document that best matches the clients capabilities, from one of several available documents. ... A type map (a file with the handler type-map ) which explicitly lists the files containing the variants. ... Apache only recognizes encodings that are defined by an AddEncoding directive. ... Content-Language: . ... Module: mod_negotiation . ...

... In this paper, a project aiming to allow access to data archives by means of a query-by-example mechanism is described. The basic user query would simply be the submission of an input image, either 1-D or 2-D; the system should allow retrieval of archived images similar to an input one on the basis of some ``resemblance parameter". ... A system called QUBE is currently being designed to support the QUery-By-Example paradigm in accessing astronomical data archives. ... the QUBE User Interface. ...

... The xpans name server is an XPA-enabled program that is used to manage the names and ports of XPA access points. It is started automatically when an XPA access point is registered. ... The name server itself has an XPA access point names xpans registered through which you can find out information about currently registered access points (assuming you have access to the name server; see XPA Access Control for more information). ... By default, proxy connections are not allowed by xpans. ...

Meteors are more than just pretty lights in the sky. Since the majority of meteor-producing meteoroids originate from comets, they contain invaluable information about these objects not otherwise obtainable. ... One such possibility is the planet Mars. ... Taking into account the slower average speed of incoming material at the heliocentric distance of Mars from the Sun, a meteoroid of the same mass entering the martian atmosphere at 30km/sec would produce a meteor +0.5 mag fainter than at Earth. ...

. May 22, 1996 . Fig. 1. An example of the EUV and soft X-ray large-scale chain of bright point revealed by the modified SOHO/EIT and Yohkoh/SXT images. A coinciding straight-line chain of the bright points extends between very distant points 1 and 2 on the SOHO/EIT (a) and Yohkoh/SXT (b) images of May 22, 1996. Back to the page of the SOHO/EIT and Yohkoh/SXT chains . Back to the parent page . Last update: 9 August 1998 .

The steps in making a pointing model are listed below. ... While tracking the source rise to set, the tiedowns are pulled through a range of about 14 inches (taking 14 minutes) . ... We need a strong point source as sband because we want to measure the peak even when we are out of focus (so we can determine the best za location). ... Time: this takes about 80 hours (averaging 2 hours/source with wait time.. ... so 4 days 12 hours a day will probably work when you include the time for the source. ...