... Near Infrared Camera and Multi-Object Spectrometer Instrument Handbook for Cycle 17 > Appendix C: Bright Object Mode > C.1 Bright Object Mode . ... The time taken to read through a quadrant on the array sets a fundamental limit on the fastest electron collection rate which can be achieved by resetting all the pixels. ... In BRIGHTOBJ mode, an ACCUM sequence of operations is performed on one pixel in each quadrant at a time. ... The time required to take a BRIGHTOBJ mode exposure can be rather long. ...

CCD Spectrometric Detectors based on Princeton Instruments exclusive 1340 в 400 CCD NTE/ CCD -400E · · · · MPP for low dark charge Small height for fast spectral rates Full 26 mm spectral coverage Lowest read noise 100 90 80 Quantum Efficiency, % 70 60 50 40 30 20 10 0 200 300 400 500 600 700 800 900 1000 1100 Front Illuminated with UV Coating Front Illuminated Wavelength, nm ...

... CCD is a NICMOS 3 HgCdTe Focal Plane Array (FPS) 256x256 CCD . CCD pixel size = 40 m . CCD gain = 4.73 e - /ADU 0.2 (K.Gloria measured in 1994: 4.56 e - / ADU ( see plot here ) . CCD read noise = 110 e - / pixel 20 . ... Pixel scale = 0.48"/pixel @ f/5 (120 arcsec FOV), 0.24"/pixel @ f/10 (60 arcsec FOV), 0.11"/pixel @ f/20 (30 arcsec FOV) all binned 1x1 . ...

... Astrophysics Group . ... Beam measurement and calibration of the SKA AAVS0 array at Lord?s Bridge using a UAV system . ... SKA AAVS0 array . ... The AAVS0 array (Aperture Array Verification System 0) is the very first SKA prototype array with 16 SKALA (SKA Log-periodic Antenna) elements developed at Cambridge University for the SKA LFAA (Low Frequency Aperture Array) instrument. ... Furthermore, the UAV measurement system has been used to very calibration strategies to correct the array beam. ...

... Next: The SAX-LEGSPC Data Up: Software Systems Previous: Porting CGS4DR to . ... This paper describes the recently commissioned Array Limited Infrared Control Environment (ALICE), used to control a new array imager, IRCAM3, on UKIRT. ... What was needed was a flexible and extensible system capable of driving the new generation of arrays to the limits of their performance, hence the term Array Limited Infrared Control Environment (ALICE). ... Thus a full 4-bytes pixel frame takes 5s to transfer. ...

... Instrument Status . Science Verification . ... CRIRES . ... SV observer shall submit their proposals using the Science Verification proposal template Proposers are asked to provide at least a short summary of the science goal, coordinates and magnitudes of GS and science target, a finding chart , the observing wavelength ID, as specified in appendix A of the UM and DIT, NDIT settings of science detectors as computed with the exposure time calculator (see below). ... with a 0.2 arcsec slit. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... ATNF facilities . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Images . ... The MAPPIT (Masked APerture Plane Interference Telescope) instrument has been used for NRM observations at the 3.9m Anglo-Australian Telescope. ...

Instruments and Methods 129 Multi-element MMIC focal array for radio telescope V.B. Khaikin1, E.K. Ma jorova1 , Yu.N. Parijskij1, M.D. Parnes2 , R.G. Shifman2 , V.A. Dobrov2 , V.A. Volkov2, V.D. Korolkov2, S.D. Uman2 , N.A. Esepkina3 , and S.K. Kruglov3 The Special Astrophysical Observatory of Russian Academy of Sciences Karachai-Cherkessia, N.Arkhyz, 357147, Russia, E-mail: vkh@brown.nord.nw.ru Svetlana", Rezonance", Ascor", 194156, Engels pr. ... Four-element sub-array prototype is shown in Fig.2. ...

The first near-infrared IFU spectrograph was the 3D instrument , constructed by the Max Planck Institut f r Extraterrestrische Physik. ... An effective slit width of 0.1" was chosen in order to probe to spatial scales approaching the 0.07" diffraction-limited image core size expected from the Gemini adaptive optics system at 2.2 microns while maintaining an acceptable field-of-view. ... The field mirror array then feeds the spectrograph collimator mirror (seen at left in the above figure). ...

Next: *.imh and *.qp Extensions Up: IRAF/PROS Files Previous: IRAF Image Arrays . The x-ray data are stored in QPOE files (Quick Position-Ordered Events, *.qp ) rather than image arrays. ... Note that, unlike IRAF images, QPOE files have no associated header file, and are always stored in the current directory, unless explicitly specified otherwise. Non-PROS IRAF tasks can also access QPOE data files in place of image arrays. ... rp110590.qp[pi=2:30] . ... The ROSAT PSPC qp file images are . ...

On' failures in the NIRSpec MEMS ST-ECF Instrument Science Report NGST 2002-02 The effects of `on' failures in a MEMS array for the NGST NIRSpec Santiago Arribas, Robert Fosbury Peter Jakobsen --1-- ST-ECF Instrument Science Report NGST 2002-02 The effects of `on' failures in a MEMS array for the NGST ... Assuming that the spectrum of a single facet uses 2000 detector pixels, only 0.01% of `on' failures is acceptable (i.e., 400 facets in a 2k в 2K MEMS array). ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... LX600 Series . ... LX200 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... LX200/LX600 Level/North Sensor Array. ...

... Data acquisition and related software ( some results ). Local WWW . ... An innovative data acquisition system ( FASTI ) for astronomical IR array and Fast L3CCD optical AO detectors., Skysoft The new Astronomical Software Directory. Galileo IR camera ( NICS ), . Galileo second generation instrument Giano - [ Suggestions? GTC IR High-resolution spectrometer NAHUAL , ( local site ), . ... baffa at arcetri.astro.it . ... 39) 055 5609713 . ... My Astronomical image collection . ...

... 1 second total power vs position in strip to show sources, rfi . ... TpI struct: SCAN LONG 503514951 FNAME STRING '/proj/a2055/wapp.20050623.a2055.0007.fits' NPNTS LONG 840 RMSFITA FLOAT Array [2, 7] (ao + a1*channum) fit torms polA RMSFITB FLOAT Array [2, 7] (ao + a1*channum) fit to rms polB MASKFRACT FLOAT Array [2, 7] (fraction of band each mask contained) TPCORA FLOAT Array [ 840 , 7] (tot power deg K each point (polA) TPCORB FLOAT Array [ 840 , 7] (tot ...

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. ...

... A color table is used that determines which color will be used for a given energy. ... Parameter Mand Type Default Constraints colortable yes table name of existing table The table that contains the color as a function of energy . colorecolumn no column ENERGY name of existing col- umn in colortable The name of the energy column in the color table . redcolumn no column RED name of existing col- umn in colortable The name of the column in the color ...

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Other Galaxies . ... Space Flight . ... When Galaxies Collide (Image credit: ALMA (ESO/NAOJ/NRAO). Visible light image: the NASA/ESA Hubble Space Telescope) . In the southern sky constellation of Corvus (the Crow), we see the Antennae Galaxies (alias NGC 4038 and 4039). ... Your email address will not be published. ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

Astronomy Picture of the Day . The Very Large Array of Radio Telescopes . ... 28.05.2002 . ... Credit: VLA , NRAO Explanation: The most photogenic array of radio telescopes in the world has also been one of the most productive. Each of the 27 radio telescopes in the Very Large Array (VLA) is the size of a house and can be moved on train tracks. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: VLA - radiotelescope . ... Arecibo: The Largest Telescope . ...

... Научная панорама ? arxiv:0709.2048 Cherenkov Telescope Array . ... arxiv:0709.2048 Cherenkov Telescope Array: следующее поколение наземных гамма-обсерваторий (Cherenkov Telescope Array: The next-generation ground-based gamma-ray observatory) . ... Прочитать про это можно в статье, а можно на сайте проекта <A HREF=" http://www.mpi-hd.mpg.de/hfm/CTA/ ">CTA</A> (Cherenkov Telescope Array). http://xray.sai.msu.ru/~polar/sci_rev/168.html#arxiv/0709.2048 . ...

The Cartwheel Galaxy . This false-color composite image shows the Cartwheel Galaxy as seen by the Galaxy Evolution Explorer's far-ultraviolet detector (blue); the Hubble Space Telescope's Wide Field and Planetary Camera 2 in B-band visible light (green); the Spitzer Space Telescope's infrared array camera at 8 microns (red); and the Chandra X-ray Observatory's advanced CCD imaging spectrometer-S array instrument (purple). ...