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. ...

... 145, 1998 R. Albrecht, R. N. Hook and H. A. Bushouse, eds. Recognition of Anomalous Events S. Monai 1 2 1 ,2 and F.Pasian2 Osservatorio Astronomico di Brera Merate, Italy Osservatorio Astronomico di Trieste, Italy Abstract. ... Raw images, as read from a CCD, are often affected by some events which are revealed by anomalous pixel values, i.e., single saturated pixels or pixels at zero intensity (also named hot or bad pixels). ... Recognition of Anomalous Events 77 Figure 1. ...

... Directives | ... Apache HTTP Server Version 2.4 . ... ext_filter_module . ... mod_ext_filter directive to define a filter # to HTML-ize text/c files using the external # program /usr/bin/enscript, with the type of # the result set to text/html ExtFilterDefine c-to-html mode= output \ intype=text/c outtype=text/html \ cmd = /usr/bin/enscript --color -W html -Ec -o - - Directory /export/home/trawick/apacheinst/htdocs/c # core directive to cause the new filter to # be run on ...

. NAME CUTOFF(nm) TMAX(%) DIMENSIONS(mm) TRACE DATA ---------------------------------------------------------------- GG-385 382 79.59 76x76x2 curve trace data GG-475 466 91.46 76x76x2 curve trace data GG-495 499 91.91 76x76x2 curve trace data OG-530 534 88.73 76x76x3 curve trace data RG-610 605 93.54 76x76x3 curve trace data RG-5 668 93.08 76x76x3 curve trace data RG-850 847 89.72 76x76x3 curve trace data What to do with the trace data. APO Filters Homepage

We have designed the laboratory model of static Fourier spectrometer for onboard usage for spectral study of atmosphere and ionosphere. The gain of model is to simulate onboard FS which will not have any moving elements (all its optical elements will be mounted at fused quartz monolithic construction), to compare experimental results with theoretical estimations and to measure MTF of CCD array. ... This fact connected with low frequency response of CCD array due to small format of it. ...

XEphem Forum Message . Forums: . ... Post . ... Re: Filter Based On Catalogs? ... Post Message | ... Posted by Elwood Downey on December 27, 2000 18:54:34 UTC . ... No, you are not missing anything.. there is no filtering that is based literally on catalog. ... Re: Re: Filter based on catalogs? - rknop - December 27, 2000 - 20:53 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Next: Filtering ROSAT HRI data Up: ROSAT HRI Recipes Previous: Correlating Spectral Data with . Although the spatial variation of the quantum efficiency across the HRI is nominally within 10% for most of the detector, occasionally it may be desirable to flat-field a map with preflight calibration measurements. ... Store the new gain map image using ``blink" in SaoImage. ... The quantum efficiency correction (QEC) is the inverse of the intensity determined from the QE map at the source position. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

Laboratory work N7 Low-pass filtering. 1) Generate the signal with two periodic components and high-frequency noise. ... 2) Perform it's filtering with Panteleev filter 0 - h(t) = e 22 0 |t| 2 0 t 0 |t| cos + sin 2 2 , where 0 is a parameter. The frequency response of the Panteleev filter is ^ h( ) = 4 0 . 4 0 + 4 Select the cut-off frequency (by varying 0 ) for filtering out high-frequency periodic component and noise. 3) Plot the initial and filtered signal. ...

... 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. ...

... This method is called once when the filter is loaded. ... This method should return a flag word that specifies the filters capabilities. ... With CONVERT_TO_FLOAT, the filter i