... It has been largely superceded by MatWeb . Conversion Factors . Material properties . Physical constants . Astronomical constants . This table gives conversion factors to convert various units to their SI equivalents. ... The units are SI. This is a short list of physical constants in SI units. ... Boltzmann constant . ... Gas constant . ... Mass . ... Plank's . ... Radiation constant . ... This is a short list of astronomical constants in SI units. ... Sun . ...

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We present ~kiloparsec spatial resolution maps of the CO-to-H2 conversion factor (ЮБCO) and dust-to-gas ratio (DGR) in 26 nearby, star-forming galaxies. We have simultaneously solved for ЮБCO and the DGR by assuming that the DGR is approximately constant on kiloparsec scales. ... In total, we derive 782 individual solutions for ЮБCO and the DGR. ... However, most galaxies exhibit a lower ЮБCO value in the central kiloparsecт??a factor of ~2 below the galaxy mean, on average. ...

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• Absolute Calibration and Characterization of the Multiband Imaging Photometer
• The CO-to-H2 Conversion Factor from Infrared Dust Emission across the Local
• Rate for NICMOS time conversion in error

... To convert measurements in Kelvin to Jy (and vice versa) the global function convert_flux is needed. ... The function knows the basic parameters for some frequencies and telescopes, but the user may need to supply the aperture efficiency, telescope diameter or the Jy/K factor. ASAP> scans.convert_flux # If efficency known ASAP> scans.convert_flux(eta=0.48) # If telescope diameter known ASAP> scans.convert_flux(eta=0.48,d=35) # Unknown telescope ASAP> scans.convert_flux(jypk=15) # Alternative . ...

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• casacore: casa::Conversion Class Reference
• casacore: casa::StokesConverter Class Reference
• PRECDATE

... Avg: the average value of the spectra (maybe throwing out some channels at the edges). <>:average over the spectra (throwing out points at the edges if you want). gCal(f) :- frequency dependence of the tabulated cal values. ... calInK(Avg): Scaler cal value averaged over the band. calOffSpc(Avg): cal off value averaged over the band (in spectrometer counts) . ... cntsToK(avg) = calInK(Avg) / (calDif_cnts(Avg)) . To convert a spectrum b_cnts in spectrometer counts to b_K in Kelvins using cntsToK: . ...

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... If you have a program to convert data to MIDAS input format, fine. ... All you need to do is cannibalize the part of the existing program that reads the data, and add a short piece of code to re-format the data first as a flat ASCII file, one measurement per line; and then convert this to *.tbl format. ... It's just like the process of creating a program-star table. ... You may decide to write a short MIDAS script to apply your format-conversion program and the edited *.fmt file to each night's data...

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• Physical Constants and Astronomical Data
• Reading FITS

. XMM-Newton Science Analysis System . ssclib (ssclib-3.33.4) [xmmsas_20080701_1801-8.0.0] . Meta Index / Home Page / A module which contains / Constants . Name . Value . Description . ErgToeV . 1.0d-7 / ElectronQ . erg to eV . ErgTokeV . ErgToeV /1000.0 . erg to keV . eVToErg . 1.0/ ErgToev . eV to ergs . keVToErg . 1000.0/ ErgToev . keV to ergs . XMM-Newton SOC/SSC -- 2008-07-01

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• Solid angle conversion factors
• Angle conversion factors

... The simplest way to convert PostScript files into PDF on our Linux machines is to use the ps2pdf command, e.g. ps2pdf file.ps file.pdf . ... If all original files contain only one page then the resulting PDF document would have have one page for each file. ... Step: Add a pdfmark operator in the set-up section so that the list of bookmarks in the resulting PDF document is visible on the left hand side when the file is opened: . ... where bookmark_file is an ASCII file containing the pdfmark...

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Next: Directory Manipulation Up: C Standard Library Functions Previous: Character Classification and Conversion . ... double atof( char * string ) - Convert string to floating point value . int atoi( char * string ) - Convert string to an integer value . int atol( char * string ) - Convert string to a long integer value . char *itoa( int value , char * string , int radix ) - Convert an integer value to a string using given ...

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• Integer Functions, Random Number, String Conversion, Searching and Sorting:
• Character Classification and Conversion
• comedi_to_phys

Next: Image with sky grid Up: Celestial Coordinates from Image Previous: *skypix* conversion . ... logical . raw pixel coordinates of current image or image section . ... pixel coordinates of original image from which current image was derived ( logical if no blocking or sectioning have been performed) . ... sky coordinates . ... pixel coordinates on the tv ( SAOimage ) display. These will logical if an image section is specified as input to the display task. rsdc@cfa.harvard.edu . ...

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• *skypix* -- conversion of pixel position to sky coordinates
• *scc_to_utc* - Converting Spacecraft time to UTC
• IDL Program Help Pages

Definitions of Magnitudes and Surface Brightness 1 The magnitude system 1.1 Apparent magnitude Astronomers are stuck with the antiquated old system of magnitudes and so a clear explanation of what this system is and how it relates to more sensible units is important. ... 1.2 Absolute magnitude Absolute magnitude is a logarithmic luminosity scale. ... One usually goes by the round about process of referring to the absolute magnitude of the sun. ... Magnitudes and surface brightness 6/6 ...

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... Virtual Observatory related tools use a new standard for data transfer called the VOTable format. ... We describe a streaming interface that can bridge the VOTable format, through a user friendly graphical interface, with the FITS and ASCII formats, which are commonly used by astronomers. ... This is a tool for converting ASCII or FITS files to VOTable format. ... A number of useful data processing, browsing and visualization tools are available to deal with data in the VOTable format. ...

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• IMPORT/EXPORT: Image Conversion Tools for IRAF
• Convert: Bridging the Scientific Data Format Chasm
• Mixing IRAF and Starlink Applications - FIGARO under IRAF

. back one page . previous slide . next slide

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• Fasti Talk Slide 5a
• Fasti Rationale
• Electronics

XEphem Forum Message . ... Post . ... Catalog Conversion Utility . ... Post Message | ... Posted by Jonathan Senning on January 3, 2001 17:40:56 UTC . ... Re: Catalog Conversion Utility - stevev - January 3, 2001 - 19:54 UTC . ... Re: Catalog Conversion Utility - sziegenbalg - January 4, 2001 - 12:16 UTC . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Re: Catalog Conversion Utility - an Astronomy Net XEphem Forum Message
• Conversion Of A Vintage 7x50 Binocular To A 18x90 Binocular - an Astronomy Net
• Re: C9.25 Conversion? - an Astronomy Net Celestron Forum Message

... Class . ... SUMMARY: NESTED | FIELD | ... METHOD . DETAIL: FIELD | ... java.lang.Object ij.plugin.Converter . ... PlugIn . public class Converter . ... Field Summary . ... Method Summary . ... Field Detail public static boolean newWindowCreated . ... Constructor Detail public Converter () . Method Detail public void run (java.lang.String arg) . ... This method is called when the plugin is loaded. 'arg', which may be blank, is the argument specified for this plugin in IJ_Props.txt. ...

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• AstroCC - A Coordinate Converter for Astronomy
• StackConverter (ImageJ API)

OptInt PmWiki : Pm Wiki / Upgrading From Pm Wiki 1 . This page gives suggestions for upgrading an existing PmWiki 1.x installation to use PmWiki 2.0. In this page we assume that a site administrator already has a site running using PmWiki version 1.x or earlier in a somewhat standard configuration, and wants to upgrade to the 2.0 software. Important note: The normal PmWiki upgrade procedure (i.e., copy the new software over the existing one) won't work for moving from 1.x to 2.0. ...

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• OptInt PmWiki : Upgrading From Pm Wiki 1
• OptInt PmWiki : PmWiki / Link Variables
• Publications | ALLSMOG

... The International Conference "Mode Conversion, Coherent Structures and Turbulence" will be held in the Space Research Institute of RAS during the period from 23 up to 25 November 2009. ... The international conference MSS-09 is organized by Space Research Institute with participation of the Russian Academy of Sciences, the Dynasty Foundation, the Russian foundation of fundamental researches, the European Geosciences Union, the Education and the Scientific Council on Nonlinear Dynamics of RAS. ...

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• List of currently available KP AZ.

... Particle distribution: dN d - with =1- ln pcn ln g Electron-photon conversion e + _ + _ electron _ e e electron/ positron high- energy photon e+ positron -25 cm cross-section, 10 8 6 4 2 0.5 1.0 center-of-momentum energy , MeV (log scale) 2 e + _ Proton-neutron conversion cm cross-section, 10 proton u +2/3 2 -28 d -1/3 6 u +2/3 4 resonance _ u d d+1/3 -1/3 d u+2/3 +2/3 -1/3 2 150 340 center-of-momentum ... Does the peak (cut-off) energy decrease with observation angle? Not always. ...

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.

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• Solar Collection and Energy Transport.
• Lecture VI.

... RECOMMENDED VALUES OF PHYSICAL CONSTANTS AND CONVERSION FACTORS. ... This reference must be included when these constants are used in a context where their full accuracy is important. ... elementary charge (of proton) . ... gravitational constant . ... unified atomic mass constant . ... of electron . ... of proton . ... Planck constant . ... Rydberg constant, m 0 2 m e e 4 c 3 /8h 3 . ... fine structure constant, m 0 e 2 c/2h . ... Bohr radius, h 2 ( pm 0 c 2 m e e 2 ) . ... Bohr magneton, e h /2m e...

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. Please enter the lightcurve FITS file name: . Lightcurve file: . Please note, the output dates are Barycentric-corrected Julian Dates expressed in Terrestial Time - BJD(TT). A similar FITS-to-ASCII lightcurve converter is available for SuperWASP data. If you have questions, bug reports or suggestions how to improve this service, please fell free to contact the author (Kirill Sokolovsky) via e-mail: kirx[at]scan.sai.msu.ru .

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• http://scan.sai.msu.ru/swasp_converter/