... These detector sensitivity and spectral element throughput tables are used to populate photometric keywords in ACS image headers, and for calculations performed by the ACS exposure time calculators (ETCs). file_name delivery pedigree note acs_ wfc _ebe_win12f_005_syn 04/19/00 GROUND WFC window throughput acs_ wfc _im123_004_syn 04/19/00 GROUND WFC m1,m2,m3 mirror throughput acs_ wfc _ccd1_017_syn 12/10/03 INFLIGHT ...

The Agile window provides complete control over the Agile high-speed photometer. ... All other parameters are specified as part of the command that starts an exposure sequence. ... To connect the filter wheel controller, issue this command in the command bar at the bottom of the Log window: agile connDev fw . ... To home the filter wheel controller, issue this command in the command bar at the bottom of the Log window: agile fwhome (there must be a filter wheel mounted in Agile for homing to succeed). ...

This library currently provides subroutines used to transform theoretical spectra to intermediate and broad-band photometric indices. ... Typical tasks are the response functions and transmission curves for various filters, mirrors and photomultiplier windows. ... The response is zero outside the given wavelength range. ... real . input . Wavelength in nanometres . PHOT_1P21 . ... PHOT_AIR . ... PHOT_ALUM . ... Inputs must be valid as for PHOT_FILTER, PHOT_AIR, PHOT_ALUM and PHOT_1P21. ...

... The active time at each angular bin is the sum over frames of the active time contributions from all CCD pixels, within the node-specific telemetry window, which overlap the surface of the bin. ... The active time, per frame, of a normal pixel is the full frame integration time multiplied by the node-specific fractional exposure; bad pixels contribute no active time. ... If an event is rejected for this reason only, then its pixels remain normal in the exposure map. ...

Next: List of Tables Up: No Title Previous: Contents . A dark current CCD exposure with cosmic ray events which are removed with non--linear filters. A) original, (B) 5*5 median filter, (C) 5*1 median filter, and (D) 5*1 recursive filter. Removal of cosmic ray events on a CCD spectral exposure with different techniques: (A) original, (B) median filter, (C) recursive filter and (D) stack comparison. ... Images RINGS and OFFRINGS. ... This image is obtained by the command visual/cube . ...

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. ...

Infrared Detector Array Links . ... Control Software Links . Optics Links . Micro-Optics Links . ... Optical Materials Databases . ... Atmospheric Database Links . Linux Links . ... Rockwell Science Center home page. ... Santa Barbara Research Center home page. ... CCD-World home page. ... SDSU home page. ... EPICS home page. ... Optics Society of America . ... Linux on Laptops ( local site and US home page ). ... Instrumentation Links * Gemini Project Links * Other IR Instruments ...

The optical scheme of the instrument is sketched in Figure 1 , it is designed to match the F/20 focal ratio of the TIRGO telescope. We have, following the optical path, the window of the dewar, the order sorting filter (not in figure), a field lens, in Calcium Floride, and the slit, in the focal plane of the telescope. ... The resolving power is (for first order of grating) of about 600 in the center of J band and 950 in the center of the K band, using a slit of two pixel (3.46 arcsec). ...

... 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) . ...

Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

... 03oct13:plot filter shapes and aliased power. dec=2..15 . 02may08: simulate lpdf, look at rms vs decimation. ... The mock spectrometer has a low pass digital filter after the a/d, digital mixer section. ... Plots were made of the filter shapes (in the time and frequency domain) for decimations 2 through 15 using the filter coefficients. ... The x axis scale is the unfiltered bandwidth [-.5, -.5] * samplingFrequency . ... The picture plots 3 times the filtered bandwidth to show the filter rolloff. ...

... FIELD | ... public class Menus . ... ImageJ . ... static char . ... static int . ... Returns the size (in points) used for the fonts in ImageJ menus. static java.lang.String . ... Returns a list of the plugins in the plugins menu. static java.lang.String . ... Field Detail public static final char PLUGINS_MENU . ... public static final char IMPORT_MENU . ... public static int installPlugin (java.lang.String plugin, char menuCode, java.lang.String command, java.lang.String shortcut, ImageJ ij) . ...

... The system is not yet perfect. Some improvements for the future are listed in this section. The Compuscope filter wheel can be attached to the Lynxx camera. ... The filter wheel also has three empty positions. Additional filters would be useful. ... A second PC would also allow the filter wheel to be run in a different mode. Presently, the filter wheel is run in a pop-up window mode. ... A beta test version of new data Acquisition software, called The Sky is on order. ...

... Submitted by Al Takeda on 05/14/2014 15:05:01 . Jellyfish Nebula (IC443) – Narrowband Hydrogen-alpha . While testing a new coupler/adapter for the STL6303E CCD camera, I imaged the Jellyfish supernova remnant using a 5nm narrowband Hydrogen-alpha filter. The bright star near the “head” is 7 – Eta Geminorum. 5nm Narrowband H-alpha filter, 10 images x 600-second sub frames, binned 1x1, Total= 1 hour and 40 minutes. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Here is a description of the Filter/Driver Pack Plus release from Aldus. ... The Macintosh Filter/Driver Pack Plus includes several new and updated filters, including import filters for Microsoft Works 3.0 and MacWrite Pro files, as well as the most recent LaserWriter driver, version 8.1.1. ... The Filter/Driver Pack Plus also includes a patcher utility which will update PageMaker 5.0 to version 5.0a. This patcher corrects a handful of reported customer problems. ...

Instructional Videos - Deep Sky Imager . ... Windows Media . ... WMV . ... Download Windows Media Player . ... About Meade | ... Meade Universe | ... Sky Assurance . ... Copyright 2006 Meade Instruments Corporation, All Rights Reserved . ...

... ESO, the European Southern Observatory . ... Survey Telescopes . ... ESO 3.6-metre telescope . ... Window on the Universe . ... Integral Field Units . ... Deep Impact - 04.07.2005 . ... The Hubble Space Telescope . ... This image from the NASA/ESA Hubble Space Telescope is one of the deepest visible/ultraviolet light images of the Universe ever taken. It shows a tiny region in the southern constellation of Tucana (The Toucan) called the Hubble Deep Field South. ... Hubble Deep Field South . ...

RTT150 . Russian-Turkish 1.5-m Telescope . ... Until 2002 observations were mostly performed with ST-8E CCD in the 1:7.7 Cassegrain focus. ... In April, 2003 telescope was equipped with a larger-size CCD Andor DW436 . ... 2048 x 2048 pixels, . ... Since summer of 2002 the main focal detector of the RTT150 telescope was AP47p CCD in 1:7.7 Cassegrain focus. ... During September 3-13, 2002 works on installation of new autoguiding system ( photo 1 ) were carried out on RTT150 telescope. ...

... 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. ...

... Previous: A Posteriori Guidance for Astronomical Images . ... We present an original algorithm for the recognition of anomalous events in a CCD frame (i.e., cosmic hits, bad pixels etc.) The algorithm is able to distinguish between these events and real features by comparing the standard deviation and the kurtosis of a synthetic PSF, whose width is given by the user, and the corresponding values in a running window, whose size is chosen by the user, in the actual frame. ...