ACS Insturment Handbook for Cycle 24 . ... Advanced Camera for Surveys Instrument Handbook for Cycle 24 . ... Chapter 1: Introduction . ... 2.2 Comparison of ACS/WFC and WFC3/UVIS . 2.3 Comparison of ACS/HRC and WFC3/UVIS . ... Chapter 3: ACS Capabilities, Design and Operations . ... 4.2.2 CCD Spectral Response . ... 4.3.8 UV Light and the HRC CCD . 4.4 The SBC MAMA . ... Chapter 5: Imaging . ... 5.2 Important Considerations for ACS Imaging . ... 7.7 ACS Apertures . 7.7.1 WFC Apertures . ...

... The SIRTF Science Center is developing two Web-based tools that will be used during operations. One tool is for Quality Analysis. ... The basic design requirements for the QA tool are (1) that it provide an easy way of looking at all the data, observation by observation, and (2) that it provide an easy way to specify status and comments for each observation. ... The data accessed by this tool consists of meta-data in the central database as well as the actual data files in the archive. ...

... In order to realize the optimal scientific return from the VLT, ESO has undertaken to develop an end-to-end data flow system from proposal entry to science archive. The VLT Data Flow System (DFS) is being designed and implemented by the DFS Group (ESO Internal access only) in collaboration with VLT Division and Instrumentation Division . ... VLT Control System Interface . ... OBs are the quantum of data that flows within the DFS, collecting state, data and status information as they flow. ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

Next: CCD Operation Up: Charge Coupled Devices (CCDs) Previous: Charge Coupled Devices (CCDs) . ... However it is only now that a number of important X-ray astronomical applications of CCDs have reached critical development stages, so that this is an appropriate time to review the application of space-borne CCD instruments to cosmic X-ray astronomy, and highlight the particular concerns which are being addressed for X-ray instruments, as distinct from optical applications. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 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. ... Coronado€о Solar . ... Spotting Scopes . ...

... This is possible at modest cost due to the low moments of inertia of the telescope and enclosure. ... This same performance will be achieved in higher winds when the telescope enclosure is facing away from the wind, or by using wind screens. ... The telescope system (MILT) will be remotely operable with an on-site operator's assistance by an astronomer located at one of the ARC member institutions. ... Mean Wind Speed . ... Offsets > 10 deg: 1 arc sec rms max . ... 5 sec max, tracking to tracking . ...

SETUP : For service mode observations within the SOLARNET Access Program, ROSA and IBIS can be utilized either as stand alone instruments, or combined together. ... PROPOSAL STRUCTURE: Proposals should include up to max 2 pages, including a scientific rationale and technical requests (detailing i.e. spectral filters and wavelength sampling). ... For the case of joint IBIS and ROSA observations, proposals should indicate which instrument is to be considered as the primary one. ... SOLARNET Access . ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

Next: CONICA: The high resolution Up: VLT Status and Instruments Previous: VLT First Light . ... Infrared instruments for the VLT . Instrument Summary . ... The already approved infrared instruments for the VLT are: . ... CONICA: Coude Near Infrared Camera (P.I. R. Lenzen, MPIA, Heidelberg) - an historical name as this instrument will be used for diffraction limited 1-5 m imaging, polarimetry and spectroscopy with the NAOS, Nasmyth Adaptive Optics System on UT1 (P.I. G. Rousset, ONERA ). ...

Simulations for ALMA Robert Laing European Instrument Scientist Simulations for ALMA IRAM, Sept 8 -10 2008 Why do we need simulations? ... Find out what simulations have been done for ALMA? ... Polarization Single-dish and array combination issues Deconvolution ALMA 3 Robert Laing European Instrument Scientist Simulations for ALMA What might we achieve at this meeting (2)? ... Sort out the remaining pad location issues Robert Laing European Instrument Scientist ALMA 4 Simulations for ALMA ...

Next: Photometric Corrections Up: Long-Slit and 1D Previous: Long-Slit and 1D . This chapter describes the long-slit љ reduction package in a general way. ... The package provides about 50 basic commands to perform the calibration and to display the results, defined in the context LONG . ... The context SPEC is a low-level context including general utility commands required by the different spectroscopy packages ECHELLE , IRSPEC and LONG . ... This interface is described in the Appendix . ...

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. ...

Magnetic field measurements onboard the Interball Tail spacecraft are carried out by the FM-3I instrument which consists of two flux-gate magnetometers covering two different ranges: [-200, +200] nT and [-1000, +1000] nT. Besides scientific goals, the FM-3I experiment data is used to perform the attitude control of the Interball Tail spacecraft. ... August 22, 1995 . ... October 18, 1995 . Top of the page . ... Back to the Interball Home Page . ...

LOFAR in Australia ­ A Brief Engineering Perspective By Dr Peter J Hall, CSIRO SKA/LOFAR Program Leader 6 November, 2002 Background LOFAR (LOw Frequency ARray) is a proposed radio telescope designed to operate in the approximate frequency range 10 - 250 MHz. ... In both cases, the instruments would be built and operated by international consortia; Australia is a founding member of the 11-participant SKA consortium and may join the USA and Europe in the LOFAR endeavour. ...

Beginning from the May of the 1997 we started to publish our daily solar radio observations at RATAN-600 radiotelescope. ... Periscope System: South Sector+Flat Mirror . ... It is possible to track a source by moving the secondary mirror along the arc-shaped railway tracks or to perform azimuthal 2D map synthesis . ... 1) It is possible to simultaneously carry out independent observing programs using individual sectors at various discrete azimuths and secondary mirrors on corresponding railway tracks. ...

. Last update: August 16, 2006 . kielkopf at louisville.edu

... In order to compare the number of different evolutionary stages obtained and X-ray luminosity of the chosen X-ray sources with the observed galactic values we use the sum of C/O+O/C , where C and O are the calculated and observed values of a given binary type, respectively. If we make comparison for a number of different binary species (for example, we compare the number of CV, number of X-ray pulsars,   total X-ray luminosity of LMXB, etc.), we write this criterion in the form: . ...

Next: Results & Discussion Up: Coronal Hole Diagnostics out Previous: Introduction . ... The dates of the observations discussed here, their locations, pointing, slit sizes and exposure times are given in BTDW. ... Line fits are given by the dotted line. ... An estimation of the errors in the derived parameters was obtained using the GA-derived parameters as an input for a ``classical'' IDL-CURVEFIT procedure (Peter, 1999; Peter & Judge, 1999). ...