neutral density filters . broad band filters (bandpass > 30nm) . ... Takes 50-mm square filters, up to 8-mm in thickness. Note: These filters are mounted in the slit mask wheel. ... The slit mask wheel pull down menu in the Remark DIS interface lists the filters and slits currently mounted in the wheel in the spectrograph. ... Will probably be able to accommodate 50-mm square filters, up to 20-mm in thickness (?) ... Takes 1.40-inch square filters, up to 0.315-inch in thickness. ...

In this section we present plots which may be used to rapidly estimate signal-to-noise ratio (SNR) for point sources with stellar spectra observed through popular WFPC2 filters. ... One uses these plots as follows: . ... Dotted lines across the top of each plot indicate the onset of saturation. ... We look at Figure B.10 and find this value on the horizontal axis. ... This exposure is well below the saturation lines in the plot, so saturation is not a concern. ... 0.45 Figure B.1: Point Source SNR vs. ...

яЛП . PubliУ? le 22/06/2011 par Nicolas Soldati . Date : 29/03/2011 . Lieu : Fribourg, Suisse . MatУ?riel de prise de vue : Zeiss APQ 150/1200, ERF, 4x telecentric, DayStar QPE 0.4У? Ha filter, Point Grey Grasshopper Camera . Date : 29/03/2011 . Lieu : Fribourg, Suisse . MatУ?riel de prise de vue : Zeiss APQ 150/1200, ERF, 4x telecentric, DayStar QPE 0.4У? Ha filter, 0.7x Optec compressor, Point Grey Grasshopper Camera .

... It lists the coefficients defining the colour transformations, the zero points for the different filters and the aperture radii used in the photometric calibration analysis. ... The AB system zero point of the filter FilterID is stored in the keyword ABM0 FilterID , e.g. the AB zero point of the the U-filter is stored in ABM0U. The flux conversion factor derived from White Dwarfs of the filter FilterID is stored in the keyword FCF FilterID . ... description . ... AB Flux conversion factor of U . ...

Next: Image Creation and Up: Commands Grouped by Previous: Image Arithmetic . CONVOLVE/IMAGE Convolve image with given point spread function . CREATE/FILTER Create filter image . DECONVOLVE/IMAGE Deconvolve image with point spread function . FILTER/GAUSS Use Gauss filter on image . FILTER/MAX Apply maximum filter to an image . FILTER/MEDIAN Median filter image . FILTER/MIN Apply minimum filter to an image . ... FFT/IMAGE Compute discrete fourier transform of a complex . ...

... Transforms a qpoe file according to the specified parameters. ... Any type of filtering can be applied to the input qpoe file, including region filtering. In addition, the size of the output event record can be different from the size of the input event record. Of course, usually one makes the output record equal to or smaller than the input. If the output record size is made greater than the input record, a warning is issued and the ``extra'' part of the record is undefined.) ...

... Обзор LPR фильтра. Впечатления от наблюдений с LPR фильтром. ... Характеристики цветных фильтров Baader-Planetarium . Мой перевод pdf- файла о фильтрах с сайта Baader-Planetarium (379 кб) . ...

The polyphase filter bank (pfb) uses a 4 times overlap fir filter before the fft. The filter is 8192*4 points long. 4 points spaced by 8192 are added together to give the 8k output. ... The response of sine waves and noise were checked using the 8192 length hamming filter. Sine waves and noise were generated on the computer and passed through the filter. ... Page 1: the coefficients for the 8192, 4 times overlap, hamming filter. ... This shows the dc gain of the filter for the 8k points. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Products . Telescopes . LX850 Series . ... Coronado€о Solar . ... H-Alpha Filters . ... Blocking Filters . ... Coronado 10mm Blocking Filter . ... Blocking filter for Coronado primary filters . ... Coronado BF-10 right angle (1.25" diagonal) type secondary blocking filter. The blocking filter is the second element in any Coronado H-alpha system, it is just as crucial to your safety and the system's performance as the front element. ...

... 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 . ...

... Apache HTTP Server Version 2.2 . ... This document describes the use of filters in Apache. ... The Filter Chain is available in Apache 2.0 and higher, and enables applications to process incoming and outgoing data in a highly flexible and configurable manner, regardless of where the data comes from. ... A wider range of applications are implemented by third-party filter modules available from modules.apache.org and elsewhere. ... There are two ways to use filtering: Simple and Dynamic. ...

... 295, 2003 H. E. Payne, R. I. Jedrzejewski, and R. N. Hook, eds. The MAST Pointings Tables Pro ject Karen Levay, Paolo Padovani1 , Randall Thompson, Megan Donahue, Michael Corbin Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 Abstract. We have undertaken a pro ject to create a database of all HST imaging observations organized by position on the sky. ... Each sky region was called a "pointing." ... Users select the instrument pointings table they wish to search. ...

... Parameters . Filters . ... Direct images . ... The SCORPIO-2 project: . Spectral Camera with Optical Reducer for Photometric and Interferometric Observations - 2 . The broad-band glass filters made in SAO RAS are used for the observation in the Johnson-Cousins (UBVRI) photometric system in the direct images mode. The glass filters transmission curves are shown by solid line. ... The filters transmission curves of the `comets' filters measured with the SCORPIO-2 in the F/4 beam. ...

adapted from Observe: Eclipses, published in 1979 by the Astronomical League and "Safe Solar Filters," by B. Ralph Chou, Sky and Telescope, August 1981) . ... Tape TWO pieces of film together into a sandwich, and tape this over the opening in the cardboard. ... The cardboard frame will act as a shade from the bright Sun, while you safely observe through the film sandwich. ... Undeveloped film is not safe. ... tape . ... At the end of one of the tubes, tape the aluminum foil, and make a tiny pinhole. ...

Astronomy Picture of the Day . Sun vs Super Moon . ... To make it, the Full Moon on May 6 was photographed with the same camera and telescope used to image the Sun (with a dense solar filter!) on the following day. ... And for some the New Moon will be surprisingly easy to compare to the Sun, because on May 20 the first solar eclipse of 2012 will be visible from much of Asia, the Pacific, and North America. ... Publications with keywords: full moon - perigee - apogee - solar eclipse . ...

... Imaging of the core of the OMC-1 region using NICMOS camera 2 through the F212N and F215N filters shows a wide variety of interesting structure on scales of 0.2" at a very high dynamic range (Stolovy et al. ... The application of image restoration techniques, including multi-channel variants of the Richardson-Lucy technique, offers the chance to enhance structure on the finest scales and also to suppress the prominent and richly structured point-spread functions of the many bright stars in the...

... The filter "Lighting Effects" is a freebie that came with this program, and in my opinion is practically worth the whole purchase price all by itself. ... You can select different light sources, and combine them with texture channels to warp your image. ... Depending on how you use it, pure white is the highest point on the image, and black the lowest. ... You can adjust the brightness and spread here, or choose other types of lighting. ... Use these if your image is turning out too dark or light. ...

... BOM2 and the basic block of solar limbograph including pointing and control systems ? ... Fine tracking platform (FTP) for Sun tracking by the sight axis of the limbograph; . ... Tracking system frequency ? ... Controller of the control system and solar fine tracking of the sight axis of the limbograph; . ... The basic relative construction of the elements and instrumental blocks of the "Astrometria" space experiment is shown on the block diagram of units within the complex of SL-200 solar...

filter1d - Time domain filtering of 1-D time series filter1d [ infile ] -F < type >< width > [ -D increment ] [ -E ] [ -H [ nrec ] ] [ -I ignore _ val ] [ -L lack _ width ] [ -N n _ cols / t _ col ] [ -Q q _ factor ] [ -S symmetry _ factor ] [ -T start / stop / int ] [ -V ] [ -bi [ s ][ n ] ] [ -bo [ s ] ] filter1d is a general time domain filter for multiple column time series data. The user specifies the number of columns of input and which column is the time. ...

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