Different backends are supported by CIMA depending on the selected receiver and observation type (spectral line or pulsar). CIMA has traditionally supported two backends: the interim correlator for spectral line single-pixel receiver observations and the WAPPs for any kind of observation. The WAPPs behave quite differently in spectral line and in pulsar mode, with the differences being so big that the observer has to select which type of obsercvation already at start-up of CIMA. ...

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• The CIMA Homepage
• CIMA Auto-Observing
• VLBI at Arecibo Observatory

WFPC2 . Images: version1 , version2 . Catalogs: Version 1 HDF-S , HDF-N ;Version 2 HDF-S . STIS . ... NICMOS . Images: Camera 3 , V2 of psf-convolved STIS 50CCD on NICMOS . ... Images: WFPC2 FF , STIS FF ; Version2: WFPC2 FF , STIS FF , NICMOS FF . Catalogs: Version2 WFPC2 FF , STIS FF , NICMOS FF . ... Check the instrument specific technical pages for a description of the data products and the implemented data reduction steps: STIS , WFPC2 , NICMOS , Flanking Fields . ...

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• NICMOS Data Handbook
• Fine Guidance Sensor Instrument Handbook
• Use of the "Available-but-Unsupported" 31X0.05NDA, 31X0.05NDB, and 31X0.05NDC

CHIANTI - an atomic database for emission lines. ... K.P.Dere, E.Landi, H.E.Mason, B.C.Monsignori-Fossi, P.R.Young, 1997, A , 125, 149 . Article: Available from ADS . The Arcetri Spectral Code for thin plasmas . E.Landi M.Landini 1998, A , 133, 1 . ... E.Landi, M.Landini K.P.Dere, P.R.Young, H.E.Mason, 1999, A , 135, 339 . ... K.P.Dere, E.Landi, P.R.Young, G.Del Zanna, 2001, ApJS, 134, 331 . ... G.Del Zanna, B.J.I.Bromage, E.Landi, M.Landini, 2001, A , 379, 708 . ...

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• Radioastronomy reduction procedures
• Observing capabilities
• mod_version - Apache HTTP Server

... This website gives the possibility to judge the calibration situation of the XMM-Newton and Chandra instruments by comparing joint and individual fits and their parameters on various targets and observations. ... select a target {OPTIONS} . ... select a version {FLUX_VERSIONS} . ... Using all available observations a histograms in various energy ranges are produced. ... select a version {FLUX_VERSIONS} select the method** 1 2 . Flux - output fluxes in various energy bands for all observations . ...

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• XMM-Newton SAS: Watchout Page
• XMM-Newton EPIC Response Files Page
• Combination of the selected observations to make the templates and build CCFs

Next: Some theory Up: userhtml Previous: Calibration . By many measures, the ATCA 3-mm observing band is a completely different domain to the other ATCA bands. ... Not surprisingly many aspects of the data reduction are also different. This chapter reviews the theory behind some of the differences, and then considers a practical approach to calibration. ... Antenna gain considerations and flux calibration . Instrumental phase . Atmospheric phase and phase calibration considerations . ...

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• Deconvolution, Restoration and Self-Calibration
• VLBI Wiki | Main / LBALogs
• An alternative approach to calibration

... We have developed a new extraction software package called aXe that was specifically designed to handle the ACS spectrophotometric data. Using a pair of direct/grism or direct/prism images, aXe can extract tilted spectra, estimate and subtract the local background, wavelength calibrate, flat-field, and flux calibrate them. ... What is aXe? ... 2001, ST-ECF Newsletter, 29, 5 Pirzkal et al. 2002, aXe User Manual 1.1 Spectral Extraction from ACS and VLT Data 487 Figure 1. ...

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• Indexing and Searching Distributed Astronomical Data Archives
• ADASS 2002 Conference Proceedings
• On-The-Fly Re-Calibration of HST Observations

Fabry-Perot data cubes. Introduction: what is "data cubes"? Observations with the IFP consist of successive acquisition of a few dozen images of interference rings from the object (or from a calibration lamp) when changing the optical path between the flat-parallel plates. The radius of the rings is a function of wavelength and gap between the plates of the interferometer. ... Its interference rings of Ne line which use for phase calibration (convert object data to wavelength-scale). ...

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• Optimization of spectroscopic observations
• Work Scan Program + Data Viewer (IDL widget)
• di_eks

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

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• Pre-processing the spectra
• Removing Cosmic Ray Hits
• Subtraction of dark and sky measurements

Peremennye Zvezdy", . ... GSC 4232-02515, NSVS 3147658, NSVS 3174760 . ... 14.2-14.9 (R, NSVS); . ... During observations of a secondary eclipse of GSC 04232-02830 (Goranskij et al., 2005) on August 8, 2007, we identified GSC 4232-02515 as a W UMa eclipsing binary. ... VAST software was used for aperture photometry. ... This method produces a light curve with an arbitrary zero point. ... Light Curve . Light curve of GSC 4232-02515 in NSVS magnitude scale. ... gsc423202515_kadar_nsvs.dat . ...

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Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

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... As part of the Great Observatories Origins Deep Survey ( GOODS ), multi-object, optical to NIR spectroscopy in the Chandra Deep Field South (CDF-S) has been carried out, using the FORS2 instrument mounted at the Kueyen Unit Telescope of the VLT at ESO's Cerro Paranal Observatory, Chile. ... In this release we provide the full set of extracted 1-dimensional fits spectra in the GOODS/FORS2 survey (LP170.A-0788) and associated spectral previews and colour image cutouts (5"x5") for each target. ...

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• FORS1 Photometric System Characterization
• Different X-ray Spectra
• VLTI Calibrator Selection Help Page

. There are several different shells available for Unix; the most popular are described here. You can use any one of these shells if they are available on your system. And you can switch between the different shells once you have found out if th