A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...

Next: *upspecrdf, downspecrdf* - Transform Up: Spectral Analysis Previous: *grid_plot* - Plot Results . The conversion of count rate to flux depends on the intrinsic spectrum of the source, so xflux must be used in conjunction with fit . Fit generates a table of the best fit intrinsic spectrum ( _int.tab extension). xflux uses this table to calculate either the integrated flux between two energy limits or the flux density at a specific energy. ... This produces ``..._obs.tab'' file. ...

... Bristow, P. D. & Phillipps, S., 1994. ... Close-out and Final Improvement Of HST POA FOS/BLUE Archived Data'' , Alexov A., Bristow P., Kerber F., Rosa R., 2002, ASP Conf. ... Modelling Charge Transfer on the STIS CCD'' , Bristow P., Alexov A., Kerber, F. and Rosa, A, 2002, in HST Calibration Workshop, STScI, p176. FOS Post Operational Archive and STIS Calibration Enhancement'' , Rosa, A, Alexov A., Bristow P. and Kerber, F., 2002, in HST Calibration Workshop, STScI, p162. ... AJ 131 ,1445, 2006. ...

... A preliminary analysis shows that the definition of a common format for spectra is a big challenge. ... Survey among Spectral Data Providers and Consumers 339 · Elodie: 25000 extracted Echelle spectra , resolution 42000, 4000 - 6800 ° on the fly processing options available: wavelength resampling, flux A calibration etc., total volume 50 - 100 GB · ESO/ST-ECF, 250000+ observations taken with 14 spectrographs in UV, optical, near IR; archive is rapidly growing · HEASARC: Variety of ...

... Wavelength Calibration . ... 30s wavecal plot . 30s flatfield plot . ... HeNeAr 4400 . B rQrtz 4400 . ... HeNeAr 4500 . ... BrQrtz 4200 . BrQrtz 4500 . ... These figures in the above table show the number of counts received from each of the lamps in a 30 second exposure with the 1.5 arcsec slit. ... Users have the option of taking calibration lamp data at the rotator angle of each object, but in many cases, it should be possible to measure the shift using observations of night sky lines. ...

... Timeline . ... 10a. Particle Drift . ... 11a. Geiger Counter . ... Fast Particles . ... Energy . As noted in the section on plasmas , gases conduct electricity only when some of their atoms are ionized, i.e. are split up into free electrons and ions . ... A Geiger Counter A "Geiger counter" usually contains a metal tube with a thin metal wire along its middle, the space in between them sealed off and filled with a suitable gas, and with the wire at about +1000 volts relative to the tube. ...

... Summary: Link references counts on pages:) RefCount performs link reference counts on pages in the PmWiki database (i.e., counts of links between pages). ... To use refcount add ?action=refcount to the URL of any wiki page to bring up the reference count form. ... referenced from pages in ~ Selects which group(s) the referencing pages can be in . Display referencing pages ~ Includes a link to the referencing page -- this can make for a very long output unless you limit the groups searched . ...

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

MAKING THE PROFILES . First of all you are expected to load a FITS file ("FILE"-"LOAD"). ... By pressing the middle button you copy the profile from the first profile window to the second one. ... An example: first integral can correspond to the profile of active region and second integral can correspond to the profile of quiet chromospheric region. ... The second profile (which is subtracted from the first one) you extract after clicking on "SUBTRACT"-"MARK QUIET PROFILE" and marking the region. ...

... Credit Copyright: Rick Scott Explanation: In the clear, dark and moonless predawn hours of November 18 , Greenbelt, Maryland's local baseball field was packed. ... Some had long since lost track ... but others were keeping score, counting hundreds of Leonid meteors in a short hour's worth of skygazing. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: radiant point - meteor shower - Leonids . Publications with words: radiant point - meteor shower - Leonids . ...

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... I Can Count Words, Ideas, Posts.. I Am Sorry You Cannot . Forum List | ... Post Message | ... Posted by Mike Pearson on November 4, 2002 19:24:19 UTC . ... Login to Post . ... 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" . ...

. Full screen versions . Number - magnitude counts . Number - redshift counts . | Front page | . | << - Redshift wedge | Completeness estimates - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .

The HyperNews Linux KHG Discussion Pages . Forum: The Linux Kernel Hackers' Guide . Keywords: network interface counters . Date: Fri, 03 Oct 1997 22:10:44 GMT . From: Keith Dart < kdart@cisco.com > . Is there an ioctl or some other way to reset the network device counters (as shown in /proc/net/dev) to zero? . TIA, Keith Dart .

... FIELD | ... METHOD . ... java.lang.Object ij.plugin.filter.MaximumFinder . ... public class MaximumFinder . ... 32768 pixels in width or height version 01-Nov-2009 Bugfix: extra lines in segmented output eliminated; watershed is also faster now Maximum points encoded in long array for sorting instead of separete objects that need gc New output type 'List' . ... static int . ... The plugin is inferred from ImageJ by this method . ... int . ... Field Detail public static final int SINGLE_POINTS . ...

... 8.633400E-4 1) This may be read into IDL using the procedure ucles_read, file , w, f file : string : : in : name of file containing data w : array : (2048, nord) : out : wavelengths for each order f : array : (2048, nord, narr) : out : fluxes in each array 2) The next step is to remove the gross continuum shape using the procedure ucles_norm, w, f, fn, fs w : array : (2048, nord) : in : wavelengths for each ... 3) Define a standard wavelength grid for the entire spectrum....

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Stellarium 0.12.3 . ... FileљStructure . FileљList . ... core . StelFader.hpp . ... 32 љ StelFader ( bool initialState, float minimumValue=0.f, float maximumValue=1.f) : state(initialState), minValue(minimumValue), maxValue(maximumValue) {;} . ... 34 љ // Increments the internal counter of deltaTime ticks . ... 41 љ bool operator==( bool s) const { return state==s;} . ... 81 љ LinearFader ( int _duration=1000, float minimumValue=0.f, float maximumValue=1.f, bool initialState= false ) . ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

. Options modify the way that a command works. They usually consist of a hyphen followed by a single letter. For example the wc command counts the number of words, characters and lines in a file. By using a different option you can choose what is counted. wc -w file1 counts the words wc -c file1 counts the characters wc -l file1 counts the lines . Using multiple options .

--------------------------------------------------------------- // Module : bibtex parser class // Description : generates a 2d array of all bibtex items // Author : Hartmut Seichter // Acknowledgement : Zhe Wu at Univ. of Rochester, http://qcite.com // License : GPL // CVS : $Id: ... 2005/01/24 06:18:38 seichter Exp $ // --------------------------------------------------------------------------- require_once(' template .php'); class BibTeX { var $ count ; var $ ...