GiST home | Introduction | ... GiST is a height-balanced tree structure with tree nodes containing (p, ptr) pairs, where p is a predicate ( attribute ),which is used as a search key, and ptr is the pointer to data for a leaf node or a pointer to another tree node for a non-leaf node. ... Every node contains between min and max index entries unless it is the root . ... For each index entry (p, ptr) in a non-leaf node, p is true when instantiated with the values of any tuple reachable from ptr . ...

Next: Silicate minerals Up: A Database of Optical Previous: Database of Optical Properties . ... If necessary, data have been determined for the different crystallographic axes. ... In the following we give some examples of the data and their possible applications. Table: Summary of data measured in the Jena laboratory, which are currently available from the JPDOC. compound . ... amorph. ... Next: Silicate minerals Up: A Database of Optical Previous: Database of Optical Properties root 2003-03-06 ...

It is a matter of common knowledge that in processes of genesis and evolution of many solar phenomena participate magnetic fields of sunspots. ... As a basis for formation of the database we take data on magnetic fields, collected by set of observatories during many years of observations. ... Section "Magnetic field data" contains data of magnetic field observation for separate sunspots, presented in standard text format (ASCII). ... Description of structure of these files is presented here . ...

... Classes . Files . ... File List . File Members . casa . Utilities . ... instantiating. 00122 // group 00123 // This version of the function is for containers that use () for indexing. 00124 template class Container , class ElType 00125 Int linearSearch1 ( const Container container , const ElType value , 00126 uInt lower = 0); 00127 template class Container , class ElType 00128 Int linearSearch ( Bool found , const Container ...

Next: Passbands Up: Instrument configuration and Previous: Storage format . ... We need two kinds of information for filters and detectors: physical information about the instrument itself, and logical information about the way it is represented in data files -- for example, the codes used to identify filter positions. ... In addition to information about the instrument itself, the reduction program needs to know the structure of the data in their table file (see section , ``Observational data''). ...

QC1 Database User's Guide: . general . ... QC1 browser . ... QC1 database: User's guide . This is the User's guide for the interfaces to the QC1 Database maintained by QC Garching. ... an interface for browsing the content of a QC1 database table . an interface for plotting the content of a QC1 database table. They all connect to the QC1 database containing Quality Control information about the VLT instruments. ... The QC1 database contains a set of tables per instrument. ... table . ...

Absolute execution time (in units of spacecraft clock ticks to one second accuracy) . Delta time after previous command (in units of 1 second) . A few commands implicitly have delta time tags of 0 seconds (immediate execution) . Execution time is computed based on type of time tag . Execution time is in units of one second . Processor can be idled by setting address pointer to 0 . ... Moves pointer down to the next command and computes its execution time . Previous slide . ...

Next: IRAF/PROS Up: PROS USERS GUIDE Previous: Contents . This guide is designed to aid the new user in deriving scientific results from reduced x-ray data using the SAO PROS software system which runs under IRAF as package ``xray". ... If you are using the IRAF/PROS system at SAO, you will find the siteguide , by Belinda Wilkes, a useful guide to site-specific procedures. ... Spatial analysis . ... Next: IRAF/PROS Up: PROS USERS GUIDE Previous: Contents rsdc@cfa.harvard.edu . ...

The preliminary version of documentation of the format for the interchange of calibrated optical/IR data being developed by Tom Pauls of NRL and John Young of COAST was presented and a number of issues discussed. The proposed format is in the general form of a relational database with different components stored in FITS binary tables. ... Should there be a single data table type that includes all data types, or multiple table types, one per data type? What data types are needed? ...

... The system is general, due to some simple naming conventions for database tables. ... Furthermore, the interface allows X-Y plotting of any two numerical quantities retrieved from the database, and access to data archives distributed over Internet, following the WWW concept. ... The user interface allows access to the underlying structure of the archive: a catalogue managed by a commercial SQL-based database management system, and a data bank holding the original data and compressed quick-look data....

... DESCRIPTION General Catalog of Variable Stars (GCVS database) . ... Kholopov P.N., Samus N.N., Durlevich O.V., Kazarovets E.V., Kireeva N.N., Tsvetkova T.M., 1990, General Catalogue of Variable Stars, 4rd ed., vol.IV, Nauka, Moscow. Kholopov P.N., Samus N.N., Durlevich O.V., Kazarovets E.V., Kireeva N.N., Tsvetkova T.M., 1992, General Catalogue of Variable Stars, 4rd ed., vol.IV, Bull. ... Kazarovets E.V., Durlevich O.V. Editor-in-Chief Samus N.N., 1998, New Catalogue of Suspected Variable Stars. ...

Next: Points of Contact Up: Observatory Contacts Previous: Observatory Contacts . The U.S. Postal Service (USPS) ``snail mail'' address for Arecibo Observatory is: . Arecibo Observatory . ... Puerto Rico, PR 00612-8346 . U.S.A. However, letters and parcels sent via ``courier services'' such as Fed-Ex, USPS, Airborne, etc., must use the physical address of the Observatory: . ... U.S.A. All telephones at the Observatory have extensions to the basic observatory number (787)-878-2612. ...

. Next: Conclusions Up: The command line interface (TEXT CEILIDH ONLY) Previous: Advantages of the command line interface . At certain times, the teacher may close a complete course, or a unit, or an exercise. These perhaps represent parts of the course which are under development, or which must be kept unmodified for administrative reasons. Dave.Marshall@cm.cf.ac.uk . Wed Sep 14 10:06:31 BST 1994

General Forum Message . Forums: . ... Discussion Forums | ... A Different Time Subject When I Was A Child. Forum List | ... Post Message | ... It was a freezing cold morning and Mom said get up and light the wood burning cook stove. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Will there be interactive user accounts (telnet/SSH)? Will users be using it as a workstation or is it a server? ... The main difference in today's world between computers is usually not the hardware, or even the OS (Linux is Linux, NT Server and NT Workstation are close family, etc.), it is in what software packages are loaded (Apache, X, etc) and how users access the machine (interactively, at the console, and so forth). ... Keep users off of the servers. ... Restrict physical access to servers. ...

... For given geographical longitude and time zone show the current data and time, Universal data and time, current local star time. ... Accept 10 different data formats (data&time, data with decimal day of month, data with decimal day of year, decimal year, some Julian dates), calculate from any formate to others, show day of week. Current data and time direct insertion function is exists. ... Calculate angular distance between two points at the sky by its equatorial coordinates. ...

... omdetect (omdetect-5.14.2) [?? Meta Index / Home Page / Algorithm Omdetect will find sources on an image using both a peak-finding and connected-pixel algorithm. The former will mainly detect ``point'' sources and the latter ``extended'' sources. The peak-finding algorithm is used first to try to locate all point sources, in order of decreasing brightness. This algorithm mainly overcomes problems with modular-8 patterns around bright sources and scattered light features. ...

A tree for site navigation will open here if you enable JavaScript in your browser. ... ABOUT ST-ECF . ... On this page we provide implementations of the the signal-to-noise ratio estimator DER_SNR following the definition set forth by the Spectral Container Working Group of ST-ECF, MAST and CADC. A detailed description and discussion of the algorithm can be found in the Issue #42 of the ST-ECF newsletter . ...

... Recent Topics . ... MAO main . ... Message from the General Secretary to the IAU membership . ... Тема: Message from the General Secretary to the IAU membership . ... IAU Directory for World Astronomy and NameExoWorlds contest . ... The IAU Directory for World Astronomy ( directory.iau.org/ ) has been created not only for astronomy clubs and organisations, but also more generally for associations having an interest in astronomy (history, culture, etc.) ... www.iau.org/ . ... MAO NASU . ...