HST Call for Proposals and HST Primer for Cycle 24 . ... Hubble Space Telescope Primer for Cycle 24 > Chapter 4: Cycle 24 Scientific Instruments > 4.6 Additional Observing Modes . ... 4.6.3 Ramp and Quad Filters . ... 4.6.5 Observations with Two Instruments - Parallel Observing . ... Pure Parallels: . ... Matching and structuring of parallel observations to prime observations, done at the start of the observing cycle, is intended to improve the execution rate for all accepted pure parallel programs. ...

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• Table of Contents
• Contents
• Observing with Linear Ramp Filters

... 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) . ... Parkes | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

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• Technical aspects of the new AAO/UKST H interference filter
• The high quality H interference filter
• Photometric Filters Activity

... 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. ...

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• SCORPIO-2 project: long-slit
• проект SCORPIO-2
• LSVFO: SCORPIO filters

ngc1514_g_100s_00063_df.fits TARGET = 'NGC 1514 ' / target EXPTIME = 100 . / exposure time (seconds) FILTER = ' (1) g (400-530)' / filter DATE-OBS = ' 2012-11-10T04 :27:49.585' / date of observation (UT) ngc1514_g_100s_00063_dfw.fits TARGET = 'NGC 1514 ' / target EXPTIME = 100 . / exposure time (seconds) FILTER = ' (1) g (400-530)' / filter DATE-OBS = ' ...

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• http://www.astro.louisville.edu/shared_skies/archive/select/messier/m42/20111031/log.txt
• http://www.astro.louisville.edu/shared_skies/archive/select/messier/m33/20121121/log.txt
• http://www.astro.louisville.edu/shared_skies/archive/select/ngc/ngc1499_california/20121121/log.txt

... 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) . ...

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• Baader NEODYMIUM (Moon & Skyglow) filter

... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...

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• Meade Series 4000 Photo-Visual Color Filters
• Blocking Filters - Coronado€о Solar - Products
• Coronado 5mm Blocking Filter - Blocking Filters - Coronado€о Solar - Products

... This noise can be reduced by replacing the pixels with an average of the surrounding values using a linear filter. ... The effects of applying linear filters to a CCD frame is shown in Figure . Figure: Different digital filters applied on a CCD image: (A) original, (B) block filter, (C) smooth filter, and (D) Laplacian filter. ... To remove stellar images from a picture of comet Halley, the results of applying different non--linear filters to the frame are given in Figure . ...

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• CCD photometry
• Observations with the KPNO 2.1m telescope
• Optical spectroscopy

... Observations have received at the telescope AT-64 of the Crimean Astrophysical Observatory . GRB . ... RA(2000): 11h 45m 10.54s . DEC(2000): 17o 24' 34.44" . ... Filter: none . ... Date, time (UT) . Exposure . ... 2000.07.29 18:21:52 . 30 sec . ... RA(2000): 19h 58m 19.61s . DEC(2000): 23o 32' 35.15" . ... 120 sec . ... DEC(2000): 6o 20' 47.07" . ... 240 sec . ... DEC(2000): 51o 46' 34.93" . ... DEC(2000): -13o 04' 30" . ... DEC(2000): +55o 18' 25.0" . ... 2000-11-09T16:03:19 . ...

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• GRB 000727
• GRB 000830
• GRB 000811

Next: AXAF Recipes Up: ROSAT HRI Recipes Previous: Quantum Efficiency Correction (a.k.a. For some observations, a significant amount of data may have been rejected during SASS processing because the background level was higher than the calculated threshold for rejection. ... REJECTED EVENTS . ... The recipe will allow the user to include rejected events in the generation of a new qpoe file and filter on the background level. ... This creates a qpoe file with standard + rejected events. ...

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• Chandra Images for G337.2-00.7
• Chandra Images for G018.4-00.4
• Chandra Images for G350.1-00.3

pn Filter Wheel Closed Data . ... XMM-Newton SOC Home Page Conferences & Meetings . ... Data Analysis SAS News What is SAS? ... The following links contain pages to the merged Filter Wheel Closed event lists corresponding to the different EPIC-pn modes. ... Fast Modes . ... Burst Mode (BU) Below you can find relevant reports and proceedings about EPIC-pn Filter Wheel Closed exposures, such as spatial, temporal, and spectral properties of the internal background. ... EPIC-pn: background calibration . ...

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• Stage Three: ``filter''
• XMM-Newton SAS: Watchout Page
• Suppression of detector noise at low energies

... NICS will be the only infrared instrument for the first light of the TNG; as a consequence, we decided to incorporate a sufficient degree of operation flexibility by providing the instrument with six different observing modes, three aimed at imaging and three at spectroscopy: . ... It will be possible to use the narrow band filters as order sorters; this will allow to perform high resolution long-slit spectroscopy in the wavelength ranges covered by the available narrow band filters. ...

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• Filters - Apache HTTP Server

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. ...

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• Fast search through RTT150 data archive
• RTT150 telescope: GRB 030329
• Test images from RTT150

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 . ...

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• Practical Astrophysics

APO/GIFS Instrument Factsheet The Goddard imager and Integral Field Spectrograph (GIFS) has recently been commissioned on the APO 3.5 m telescope. This factsheet presents a high level overview of the GIFS instrument. ... GIFS Imaging The GIFS imaging mode is used for imaging science and target acquisition for the IFS mode. ... Imaging Mode pixel scale: 0.168"/pixel · Comparison to Other APO 3.5m instruments: The GIFS field of view is smaller than SPICAM, but the filter set is far more extensive. ...

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• Apache Point Obs. filters
• Guider Mechanical Commands
• UW-WSU Nebular Emission-Line Filters

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. ...

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• ASP: Beacons in the Gloom

. Next: The Hierarchical Stellar Systems Up: Data files Previous: Spectroscopy Contents . Photometry data files have the extension .mag . The following gives an example for Algol, where the columns are the component designation, filter name, the Julian date of observation, and value and error of the magnitude measured. The filter names must be one of Hp, U, B, V, R, and I. ABC V 2445249.299 -2.60900 0.001 ABC V 2445249.304 -2.60000 0.001 ABC V 2445249.313 -2.59200 0.001 . Christian Hummel 2015-04-28

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• NTT Observations of Bright Comet 1995 Q1 (Bradfield) | ESO
• ESO - A number of OmegaCAM filters show vignetting in their central regions.
• Interferometric fringes from an observation of 3C 273 with the VLTI | ESO

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• Zeiss-1000 telescope instrumentation
• GRB090726

Peremennye Zvezdy", . ... Star Name: . USNO-A2.0 0900-17250765 . ... 15.85 - 18.4 (unfiltered) ; . ... During observations of a field in Aquila, we discovered a new UV-type variable star. ... For photometry of the new variable star, we applied VaST software by Sokolovsky and Lebedev (2005). ... 5 (J2000, 2MASS)), R 1 =14 m .30, R 2 =14 m .60 (USNO-B1.0). ... Coordinates of the variable star were drawn from the 2MASS catalogue (Skrutskie et al. ... Flare of USNO-A2.0 0900-17250765 . ...

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• Астронет > Кривая блеска GRB 030329

Lab . Main page News People . ASA . Master . Master net Homepage . ... Lomonosov Moscow State University Sternberg Astronomical Institute . ... MASTER . ... Lomonosov (ShOK) . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . People, who work in lab . Latest news and news archive . ... GRB 100131A: MASTER-Amur alert observations 76 sec after Notice time.The limit of the main telescope images is aboute 15 mag (unfiltered). ... All news ...

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... 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. ...

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• NAIC-IRIDIUM Coordination Agreement
• Arecibo Observatory L-Wide Band Receiver
• Power line filters