WFPC2 has corrective figures on the relay secondary mirrors where the primary mirror is imaged; this optical correction recovers near-diffraction limited images over the entire CCD fields-of-view. Proper correction requires tight optical alignment tolerances, which are facilitated on-orbit by actuated optics. ... Alignment stability error . ... The optical design of WFPC2 creates an image of the OTA primary mirror near the surface of the relay Cassegrain secondary mirror in each of its channels. ...

... Science . ... Science Users Information > Observing Facilities > Instrumentation Development > VLT/Instrument Interfaces . ... APEX Visitor Instrument . ... The interfaces between the VLT Unit Telescopes and the scientific instruments to be operated at the VLT Cassegrain, Nasmyth and Coudц© foci are well defined. ... Interface and numerous other relevant information for instrument builders is available in the "Requirements for Scientific Instruments on the VLT Unit Telescopes" , ESO doc. no. ...

... Meade Instruments Corporation . ... Autostar Computer Controller Instruction Manual . Autostar Computer Controller . ... NOTE: This manual covers both Model #495 Autostar and #497 ETX Autostar Computer Controllers. ... Autostar Primary Menus and Options . ... Chapter 3: Alignment . ... Guided Tour Menu . ... Chapter 5: Autostar Menu Functions . ... Meade Autostar Computer Controller . ... Meade #505 Connector Cable Set Manual . ... Copyright 2006 Meade Instruments Corporation, All Rights Reserved. ...

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 . ...

... Created: 23 February 2001 . ... SOFTWARE MAINTENANCE MANUAL . ... 9 January 2001 . ... Note: in the final document, the table of contents will be to third level] . The Software Maintenance Manual describes the procedures for installation and maintenance of the software for the Gemini Near-infrared Integral Field Spectrograph (NIFS). ... Section 19.4.3 of the document “Programmatic Requirements for Gemini Instrumentation Development” states the requirements for the Software Maintenance Manual . ...

Next: The Multimission Archive at the Space Telescope Science Institute . Up: Archiving . ... As part of the agreement between NASA and ESA on the continuation of the collaboration on HST, the ST-ECF has been charged with the production of the Post Operational HST Science Instrument Archives (POA). Starting with the Faint Object Spectrograph the data from the instruments which have been removed from the HST will be re-calibrated and made accessible in a uniform manner. ... Rosa 2 . ...

Next: VLT First Light Up: Front Cover Previous: Participants . VLT First Light . ... Image Quality of the VLT . ... Near IR Astronomy with the ESO VLT . Introduction and Overview . Infrared instruments for the VLT . Instrument Summary . ... Performance . ... CONICA: The high resolution near-infrared camera for the ESO VLT . Introduction . Design of Imaging Optics . Analyzing Optics . Cryo-mechanical Design . ...

... A timeseries is created by evselect from an event list which includes events from the exposure/instrument/ccds of interest. ... The events that end up in the time series represent only a fraction of the photons from that source which impinge on the aperture of the mirror. ... Events outside of good time intervals (GTIs); . ... Some things that belong to the `involuntary inefficiencies' list also behave like selections (eg the lack of events on a bad pixel), because of their all-or-nothing character....

... 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 . ...

OptInt PmWiki . MROI / . ... MROI Delay Line Design Contract . ... Design Documentation . ... MROI DL Production SW Contract . ... Preliminary Design Review . Software Design Documentation . ... MROI Fast Tip-Tilt Contract . ... Design Documents . ... MROI FT SW Architecture . ... Science Instrument Downselect . ... MROI DL Design Contract Private Material . ... Workpackage Status 2006/10/12 . ... Due Date . ... Due 2006/07/31 . 70% done . ... Preliminary design for downselected concept . ...

Marses Instrument . ... Currently we use a Tem-fast 48 sounding instrument that is based on time domain electromagnetic sounding technology. ... Areas of application are following: . ... hidrogeological research, . ... Despite many competitors' instruments with similar areas of application, Tem-fast 48 has reasonable advantages among small depth sounding devices. ... The Tem-fast 48 sounding instrument consists of following devices: . ... The block diagram of the sounding instrument is outlined below. ...

The 24-inch (0.6-meter) Ritchie-Chretien research telescope was manufactured by RC Optical Systems and installed in August 2006. ... Spacers are used to put the camera or other instruments at the proper position, and an encoded focus motor moves the focal plane 5 microns per encoder count. ... The telescope uses an Apogee U16M CCD camera with a 4096x4096 array of 9 micron pixels which oversample the seeing and permit very accurate photometry and imaging over a wide dynamic range. ...

SITE 2010 Comprehensive Characterization of Astronomical Sites Kislovodsk, Russia, 49 October 2010 Conference Summary Marc S. Sarazin*a a European Southern Observatory, Garching, Germany Abstract The main topics discussed during the Site 2010 conference are outlined and the outcome is described. Keywords: Astronomical Site testing, precipitable water vapor, atmospheric turbulence, cloudiness, seeing 1. ... Site surveys for National observatory projects in China, India, and Iran benefit from this. ...

... 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. ...

Our collection contains previews of images of ocean and sea surface taken by various satellite, aircraft and ground-based remote sensing instruments. Active and passive instruments operating in microwave and optical ranges present their capabilities to register physical and biological phenomena manifesting themselves in bands of slicks on the sea surface. ...

... Dodson, Legge et al, ApJ, 2003 Spectral Line Sources · Requirement of high brightness temperatures means no thermal emission · Masers: Galactic Extragalactic · OH, H2O · OH, H2O, SiO, CH3OH · Galactic extra-galactic HI absorption VLBI arrays · VLBA (Very Long Baseline Array) Dedicated US array of ten 25m telescopes 330 MHz ­ 90 GHz · EVN (European VLBI Network) Formal collaboration of radio telescopes in Europe, Asia and South Africa ~15 telescopes 15m to 100m 330 MHz ­ 22/43 GHz ...

Next: *imcalc* - Obtain a Up: Calibration Previous: Exposure Map . Background maps are provided by the standard processing for all ROSAT and Einstein instruments. For the PSPC and IPC these are in three standard bands: soft, hard, and broad (Table 6.2). ... N.B.: ROSAT PSPC background maps in SASS 5-6 or higher are generated by smoothing a source-subtracted, exposure corrected image (see the ROSAT Data Products Guide). ... imcalc* - Obtain a background subtracted image for ROSAT PSPC Data . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualitГїs . ... des tests d'instruments sans concession . ... des pages consacrГїes Г la publication de vos photos Mais c'est aussi une vraie communautГї avec laquelle partager votre passion et nourrir votre curiositГї. ... A la une . ... Ciel et Espace teste rГїguliГЕrement les instruments dв?Tastronomie du marchГї afin dв?Tinformer les astronomes amateurs de la qualitГї de ces instruments, tant sur le plan optique que mГ...

. The ALFA instrument monitor window is a big window showing all ALFA engineering parameters (with the exception of the ALFA motor). The 'Open motor control window' button opens the ALFA motor control window . You can return to the main CIMA page by clicking here .

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The instruments engineer and technical support subdivision consists of the engineer support group: 4 senior engineers, 5 engineers and 14 staff members of service personnel. Head: Zavorin A. V. The main subdivision's instrument is the Incoherent Scatter Radar . The instruments engineer and technical support subdivision's main task is technical support of Irkutsk IS radar experiments. ...