Next: Examples and Hints Up: CCD Detectors Previous: Cleaning Images . The COMPUTE/IMAGE command can be used to perform the operation of dark subtraction and flat fielding. ... To do a dark subtraction enter the following: COMPUTE/IMAGE DENOM = FLAT_AVG-DARK_AVG . where DENOM is the result frame, FLAT_AVG is the average of flat fields, and DARK_AVG is the average of dark frames. ... To flat--field a data frame, enter the following: COMPUTE/IMAGE SCIE_FLAT = (SCIE_IN-DARK_AVG)/DENOM . ...

Еще в разделе: (Показать все результаты (>1919) - www.sao.ru/ )

• Example
• HyperLEDA documentation: HyperLEDA: catalogue of designations (a101)

You can also sort on a specific part of a field if necessary. To define which part of a field to sort on you give the position in the field at which to start the sort followed by the position in the field at which to end the sort. The position at which to start the sort is given as the number of fields to skip followed by the number of characters to skip. ... tells sort to skip the first two fields and the first three characters of field 3. ...

Еще в разделе: (Показать все результаты (>587) - comet.sai.msu.ru/ )

• Defining the sort field
• Changing the field delimiter
• Sorting the content of a file

In this chapter we will consider an example of visual expert system written on the Actor Prolog language. ... There are a lot of methods of oil field bed stimulation that increase output of the oil production: thermal, physical-chemical, gas, microbiological, and others. ... Fig. ... The Top-Most diagram consists of three blocks: the "Describe parameters of hydrocarbon field" block, the "Check adaptability of existed methods of oil production" block, and the "Display solution" block. ... Gas methods. ...

Еще в разделе: (Показать все результаты (>567) - www.cplire.ru/ )

... Doug's Home Page . ... S-Lang structures are converted to hash references in Perl , as shown below. ... n\n ; print Structure contents:\n ; # you can treat $s as a reference to a hash array in most respects, except: # - the order of the keys in the array matches that of the # original S-Lang structure # while ( my ( $ key , $ value ) = each %{$s} ) { print key $ key \t has a value of $ value \n ; } print \n ; $$s{afield} = 'a changed field value '; print ...

Еще в разделе: (Показать все результаты (>2813) - hea-www.harvard.edu/ )

• Doug Burke's Perl/S-Lang pages: Datatype examples
• ChaMPlane apj_appendix
• ChaMPlane data_archive_.html

... This appendix describes how to use the JavaScript console to evaluate expressions and display error messages to the user. ... Displaying Error Messages with the Console JavaScript 1.2 and earlier versions. ... You can specify whether to automatically open the console when a JavaScript error occurs or to display a dialog box for each JavaScript error. ... To open a dialog box each time an error occurs, add the following line to prefs.js : user_pref("javascript.classic.error_alerts", true); . ...

Еще в разделе: (Показать все результаты (>7068) - www.arcetri.astro.it/ )

• Mail Filters
• LonGSp: Optical Design
• research field

... Magnetic field lines similarly describe the structure of magnetic fields in three dimensions.They are defined as follows. If at any point on such a line we place an ideal compass needle, free to turn in any direction (unlike the usual compass needle, which stays horizontal) then the needle will always point along the field line (drawing below). Field lines converge where the magnetic force is strong , and spread out where it is weak. ... Exploration" home page (index) Glossary . ...

Еще в разделе: (Показать все результаты (>759) - www.iki.rssi.ru/ )

• Magnetic Field Lines -- History
• Examples of the raw magnetic field information, obtained with the MIF-M
• The Polar Caps

We describe a correspondence between from family of plane quartics over a field k to a family of abelian threefolds over k. This correspondence is the Jacobian up to isogeny. This leads to a solution of Serre's conjecture on non hyperelliptic genus 3 curves. When k is the field of complex numbers, Serre's conjecture reduces to an identity of Klein on Thetanullwerte of genus 3. We give a precise form of Klein's identity in the case considered here . ...

Еще в разделе: (Показать все результаты (>939) - www.mccme.ru/ )

• Conference "Global Fields"
• The field of p-adic numbers and its finite extensions (Spring 2010)
• Arithmetic Geometry Year - Poncelet Laboratory

... Summary of reduced ISAAC fields . ... This data release includes eight fully reduced VLT/ISAAC fields in J,H,K s bands covering 50 arcmin 2 of the GOODS region in the Chandra Deep Field South (CDFS). ... 8 ISAAC fields) . ... The 8 ISAAC fields which are part of this data release are superimposed onto a SOFI image (J+K) (part of a previous EIS data release). ... In one case (GOODS field 11/J-band), for which not enough standard stars were available, the ZP was boostrapped from previous SOFI/EIS data...

Еще в разделе: (Показать все результаты (>66354) - www.eso.org/ )

• API Help
• The format of STARTABLE
• FORS1 Photometric System Characterization

... Data Reduction Guide . ... Please note that all the instructions herein are specifically for the DIS RED chip, the same goes for the BLUE chip, just redo everything but with filenames having "b's" in them instead of "r's". Incidentally as best as I can tell the image region for the RED chip is [145:755,230:665] and for the BLUE chip it is [125:480,125:375] . ... At this point you need to load the ccdredd package. ... Oh, and the read-noise for both chips is 9.5 electrons. ...

Еще в разделе: (Показать все результаты (>781) - www.apo.nmsu.edu/ )

• TUI:Tidbits:Entering Sexagesimal Positions
• TUI:TUI Menu:Log Windows
• TUI:Tidbits:Entering Sexagesimal Offsets and Durations

. Main Page Data Structures File List Data Fields Globals . Data for OI_TARGET FITS table. More... #include < exchange.h > . int . revision . int . ntarget . target * . targ . Data for OI_TARGET FITS table. int _oi_target::revision . int _oi_target::ntarget . target * _oi_target::targ . The documentation for this struct was generated from the following file: . exchange.h . Generated on Mon Apr 7 11:31:33 2003 for OI FITS Example Code by 1.2.14 written by Dimitri van Heesch , 1997-2002

Еще в разделе: (Показать все результаты (>1519) - www.mrao.cam.ac.uk/ )

• A CLEAN-based method for mosaic deconvolution
• _element struct Reference
• _oi_wavelength struct Reference

... Files in red?history) . ... Field Lines . ... EM Waves . ... Magnetic field lines similarly describe the structure of magnetic fields in three dimensions.They are defined as follows. ... Maxwell Most scientists nowadays view field lines as intangible abstractions, useful only for describing magnetic fields. ... Maxwell also showed (perhaps his greatest achievement) that an "electromagnetic wave" was possible, a rapid interplay of electric and magnetic fields spreading with the velocity of light. ...

Еще в разделе: (Показать все результаты (>1025) - www.cosmos.ru/ )

• Examples of the raw magnetic field information, obtained with the MIF-M
• Chronology of geomagnetism
• The Exploration of the Earth's Magnetosphere"

... Classes . ... Definition at line 87 of file SDSourceHandler.h . ... Definition at line 114 of file SDSourceHandler.h . ... Definition at line 137 of file SDSourceHandler.h . ... Definition at line 116 of file SDSourceHandler.h . ... Definition at line 139 of file SDSourceHandler.h . ... Definition at line 134 of file SDSourceHandler.h . ... Definition at line 117 of file SDSourceHandler.h . ... Definition at line 138 of file SDSourceHandler.h . ... Definition at line 131 of file SDSourceHandler.h . ...

Еще в разделе: (Показать все результаты (>21989) - www.atnf.csiro.au/ )

• Suppressing Keyword Events
• Graphical User Interface Example (4)
• PPTA Wiki | PmWiki / Forms

... As a result of BTA observations of 23 chemically peculiar stars with strong magnetic fields, it was found that in 22 of them the longitudinal magnetic field, measured from the hydrogen line cores are considerably lower (by about 1/3) than the value measured from metal lines in the same spectra. ... New approaches need to be developed in order to interpret the data. ... The Zeeman spectrum of a star with a strong magnetic field, 53 Cam. ...

Еще в разделе: (Показать все результаты (>211) - mavr.sao.ru/ )

• Galaxy sector, archive 1995
• Speckle interferometry of magnetic stars

... This API (Application Programming Interface) document has pages corresponding to the items in the navigation bar, described as follows. The Overview page is the front page of this API document and provides a list of all packages with a summary for each. ... Each package has a page that contains a list of its classes and interfaces, with a summary for each. ... Each of these pages has three sections consisting of a class/interface description, summary tables, and detailed member descriptions: . ...

Еще в разделе: (Показать все результаты (>659) - www.astro.louisville.edu/ )

• University of Louisville Wide Field and Planetary Telescopes
• FileOpener (ImageJ API)
• FileInfo (ImageJ API)

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

Еще в разделе: (Показать все результаты (>750) - www.mso.anu.edu.au/ )

• ANU - RSAA - 5th Stromlo Symposium Registration
• Naomi McClure-Grffiths
• COALA - Computational Astrophysics Laboratory

... Bit Fields . Bit Fields: Practical Example . ... NOTE: The combination of pointers and bit-level operators makes C useful for many low level applications and can almost replace assembly code. ... To illustrate many points of bitwise operators let us write a function, Bitcount , that counts bits set to 1 in an 8 bit number ( unsigned char ) passed as an argument to the function. int bitcount(unsigned char x) { int count; for (count=0; x != 0; x>>=1); if ( x & 01) count++; return count; } . ...

Еще в разделе: (Показать все результаты (>954) - jet.sao.ru/ )

• GRB follow-up team
• Fabry-Perot Interferometer: Gallery Old
• Multipupil Field Spectrograph

Blackholes2 Forum Message . ... Post . ... A Field Does Not Contain Energy? ... Post Message | ... Here are two sites of many which use rest mass terminology. http://www.iop.org/EJ/abstract/0026-1394/41/5/S04/ . ... This site refers to the energy contained in a static gravitational field. http://www.ias.ac.in/currsci/mar25/articles27.htm . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Еще в разделе: (Показать все результаты (>1400) - www.astronomy.net/ )

• The Sun Energy Source Is Not Nuclear Fusion But Magnetic Fields. - an Astronomy
• Observation Report 03/15/03 From Coyle Field - an Astronomy Net
• Coyle Field 03/22/03, Celestron 11? GPS - an Astronomy Net Observation_reports

... The database contains data of magnetic field observations obtained in the following observatories: Central astronomical observatory ( GAO ) , Crimean astrophysical observatory ( KrAO ) , Institute of terrestrial magnetism and radiowave propagation of Siberian division of RAS (Irkutsk) ( SibIZMIR ) , Institute of terrestrial magnetism and radiowave propagation (Troitsk) ( IZMIRAN ) , Shemacha astrophysical observatory of Azerbajanian AS ( ... GAO IZMIRAN SibIZMIR KrAO UsAO UrAO ShAO . ...

Еще в разделе: (Показать все результаты (>302) - www.gao.spb.ru/ )

• Pulkovo NEO Page: Estimation of Accuracy of the Observations
• Pulkovo database of sunspot magnetic fields

This module provides the ability to set environment variables based upon attributes of the request. ... The mod_setenvif module allows you to set environment variables according to whether different aspects of the request match regular expressions you specify. ... BrowserMatch . ... Syntax: BrowserMatch regex env-variable [= value ] [ env-variable [= value ]] .. ... Module: mod_setenvif . ... The BrowserMatch directive defines environment variables based on the User-Agent HTTP request header field. ...

Еще в разделе: (Показать все результаты (>114) - neptun.sai.msu.ru/ )

• Apache module mod_auth_anon.c
• Apache module mod_example

... 2004 December 30 . M81 and M82: GALEX Full Field . Credit: GALEX Team , Caltech , NASA . Explanation: Intriguing galaxy pair M81 and M82 shine in this full-field view from the orbiting GALEX observatory. GALEX - the Galaxy Evolution Explorer - scans the cosmos in ultraviolet light , a view that follows star formation and galaxy evolution through the Universe . ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ...

Еще в разделе: (Показать все результаты (>2752) - www.sai.msu.su/ )

• Monitoring Options
• APOD: 2009 May 26 - Whirlpool Galaxy Deep Field
• Tsearch2 in Japanese