... HST . ... HST Overview . ... FP-SPLIT acquisitions interactive and scattered light calibrations detectors wavelength detectors photocathode granularity exposure time estimation gratings, echelle, scattered light gratings echelle scattered light OSCAN Mode resolving power spectroscopic resolving power [1] [2] wavelengths useful range WSCAN Mode ACCUM Mode [1] [2] [3] CENSOR [1] [2] [3] COMB [1] [2] [3] [4] DOPPLER Doppler compensation exposure time estimation FLYLIM [1] [2] [3] FP ...

... Meade Instruments Corporation . ... Microscope Instruction Manual . Meade Model 9400 . Meade Model 9400 Microscope Introduction. The Meade Model 9400 Microscope is a precision instrument enabling startling views of the microcosmic world with its all-metal construction, fine glass optical elements, and precision adjustments. ... Your Meade Model 9400 Microscope requires some minor assembly of the Eyepiece, Objective Lenses, and Illuminating Mirror. ... Index of Instruction Manuals . ...

Instruments and Methods 125 Long time tracking of the Sun with RATAN-600 in Radio Schmidt mode V.B. Khaikin, E.K. Ma jorova, I.G. E mov, O.A. Victorov, V.M. Bogod, and S.Kh. ... Cosmic source tracking with unmovable main mirror in a form of cylinder requires a special secondary mirror of double curvature 12 m size or a phased array in the focal plane of an ordinary secondary mirror Ka jdanovskij, 1980. ... Fig. 4 shows the Sun tracking with new drive in speed control mode starting from meridian. ...

General Information (These links are currently under revision) . ... NIC-FPS - Near Infrared Camera/Fabry-Perot Spectrometer (coming 2004) . ... Photos of Current ARC Instruments . ... These documents are provided to give users the information needed regarding instrument design, performance and operation to plan and carry out observations. While every effort is made to keep information on this site current, instrument performance does vary continuously with time and environmental conditions. ...

NIFS is designed to be a fast-tracked, low-cost, near-infrared, integral-field spectrograph for use on Gemini North with the facility adaptive optics system, ALTAIR . ... By adopting a largely fixed-format design: A 3.0" 3.0" "stair-case" integral field unit (IFU) will feed a near-infrared spectrograph with five fixed-angle gratings mounted on a single grating wheel. ... The 29 field mirrors direct the beams into the spectrograph so that their pupils all coincide on the grating at bottom-left. ...

... Science . ... Science Users Information > Observing Facilities > Paranal Facilities > Paranal Instrumentation . ... Offered Instruments . ... Paranal News . ... Paranal Instrumentation . ... Overview . ... Instrument Description . Manuals . ... Visitor Instructions . ... VLTI Visitor Instrument . ... Paranal Science Operations . ... The links to the different instruments provide an overview of the respective instrument capabilites and the offered instrument modes. ... Last Update: 29.02.16 ESO . ...

... Image Quality of the VLT . Total Optical Control . First light for the ESO VLT unit telescope 1 occurred during the workshop. ... The image shown (Figure 1 ) here was obtained with the VLT on May 16, 1998, in red light (R band), i.e. while the mirror was still uncoated. ... In this diagram (FIgure 2), the measured image quality of the VLT UT1 astronomical images is plotted versus the ``seeing", as measured by the Seeing Monitor, a small telescope also located on top of the Paranal Mountain. ...

SAO is Russia's main centre for ground-based space research. ... The basic instruments of the Observatory are the optical telescope BTA (Big Alt-azimuth Telescope) with a main mirror diameter of 6 m and the radio telescope RATAN-600 with the antenna diameter 600 m. Study of the Universe as a whole, analysis of non-stationary energy release in galactic and extragalactic objects of various types, investigation of evolution and chemical composition of our Galaxy and the nature of solar activity. ...

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. ...

... 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. ...

... The collecting area is increased by nesting concentric mirror pairs, all having the same focal length. ... Figure shows the largest optical element being ground at HDOS. ... X-ray testing demonstrated that the CXO mirrors are indeed the largest high-resolution X-ray optics ever made; the nominal effective area (based on the ground calibrations) is shown as a function of energy in the left panel of Figure , along with those of their Einstein and ROSAT predecessors. ...

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). ...

... Alternatively, the PI channel boundaries will be read directly from the data subspace extension of the input image (not yet implemented). ... EPIC PN offset columns (as specified in the offsets extension of the photon event list) are set to zero in the exposure map, if they had been removed from the input reference EPIC image. ... The task tries to determine the exposure time by looking for gti extensions in the input image of the form STDGTInn, STDGTIn, STDGT, or GTI. ...

Next: Summary of reduction Up: Echelle Reduction Previous: Saving the Data . In the present version we will be concerned with the standard configuration of CASPEC, the Cassegrain Echelle Spectrograph which is in operation at the Cassegrain focus of the ESO 3.6 m telescope. ... In its standard configuration CASPEC uses a a 31.6 lines/mm echelle grating together with a 300 lines/mm grating cross disperser. ... The table shows the change in resolution with the order number. Table: Resolution . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...