... ABOUT ST-ECF . ... Richard Hook and Andy Fruchter . ... Test versions of enhanced drizzle implementations - undocumented and unsupported . ... Transform an X,Y position from output to input pixel position using the same conventions as drizzle . ... Transform an X,Y position from input to output pixel position using the same conventions as drizzle . ... Convert WCS header information into drizzle parameters . Maintained by Richard Hook <rhook@eso.org> . ...
. A tree for site navigation will open here if you enable JavaScript in your browser. HOME . ABOUT ST-ECF . CONTACT . Norbert Pirzkal . SLITLESS . - Extract a spectrum from a direct/GRISM image pair . Maintained by Richard Hook <rhook@eso.org> . Last Modified Thu, 08 Jun 2006 15:55:52 +0200 .
... ABOUT ST-ECF . ... Change the relative shifts in association file . ASNCOMBINE . Process and combine images in one or two NICMOS associations . ... Examine images in an association . ... Plot magnitude as function of subpixel position . ... Group images in associations . ... Makes flatfields corresponding to the output image of asncombine . ... Compute the pixel response function for an image created with asn combine . ...
... In the spectrometry of point sources, the advantage of obtaining long slit spectra over using single aperture spectra is that it provides a simultaneous spectrum of the background on both sides of the point source. ... The STECF IRAF layered package "specres" provides two tasks to extract point source spectra from 2-D images (either longslit, multislit or cross-dispersed) and decompose the full background over the image. ... A Point Source Function spectrum image is required as a 2-D spectrum. ...
. A tree for site navigation will open here if you enable JavaScript in your browser. HOME . ABOUT ST-ECF . CONTACT . Richard Hook . APOMASK . - . Create an apodizing mask image with zero background and a circular central mask with rounded off edge . CPLUCY . - . Photometric image restoration with unconstrained star positions . SEEING . - . Create a simulated ground-based star image based on a model . Maintained by Richard Hook <rhook@eso.org> . Last Modified Thu, 08 Jun 2006 15:43:09 +0200 .
... Several HST instruments both current and decommisioned have provided imaging linear polarimetry capabilities. ... The STECF IRAF layered package impol provides five tasks specifically aimed at reduction of HST imaging polarimetry data. ... Reduction of HST polarimetry data and simulation of raw polarimetry images, together with polarization vector plotting, are covered. ... For reduction of data from imaging linear polarization instruments other than from HST, the instrument name is `SPECIAL'. ...
... AstroAsciiData is a Python module to handle ASCII tables. ... The idea to develop this Python module emerged from the fact that ASCII tables continue to be one of the most popular and widely used data exchange formats in astronomy and probably science in general. ... To load this ASCII table, go into Python, load the AstroAsciiData module and read in the table with: . ... demo = asciidata.open('webexa.txt') . ... Users who only want to work with ASCII tables neeed no further python modules. ...
... ABOUT ST-ECF . ... The various applications for handling Hubble data that had been collected in the layered IRAF package "stecf" have been moved into STSDAS in December 2010 and will be released as part of STSDAS starting from version 3.13 on (scheduled for the beginning of 2011). IMPOL - HST Imaging Polarimetry Reduction Package . SPECRES - Spectroscopic Restoration Tools . ... NICTOOLS - NICMOS GRISM Tools; discontinued . SLITLESS - a Slitless Spectroscopy Quick-look Tool; discontinued . ...
A tree for site navigation will open here if you enable JavaScript in your browser. ... ABOUT ST-ECF . ... On this page we provide implementations of the the signal-to-noise ratio estimator DER_SNR following the definition set forth by the Spectral Container Working Group of ST-ECF, MAST and CADC. A detailed description and discussion of the algorithm can be found in the Issue #42 of the ST-ECF newsletter . ...
... CONTACT . P. Andreani (ESO) . D. Bockelee-Morvan (Paris) . ... C. De Breuck (ESO) . ... R. Laing (ESO) . ... M. Zwaan (ESO) The Herschel Satellite and the Atacama Large Millimeter Array (ALMA) are two very large sub-mm and far infrared (FIR) astronomy projects that are expected to come into operation in this decade. ... This report is addressed to an audience of non-specialist astronomers who may be interested in extending their areas of research by making use of Herschel and ALMA instruments. ...
. A tree for site navigation will open here if you enable JavaScript in your browser. HOME . ABOUT ST-ECF . CONTACT . STIS Calibration Enhancement . Spectroscopy (@STSCI) . Charge Transfer Efficiency (@STSCI) . Calibration Lamps (@STSCI) . Documents (@STSCI) . Maintained by Michael Rosa <mrosa@eso.org> .
... CONTACT . ... Planned space experiments promise a considerable increase in the detections and statistical knowledge arising especially from transit and astrometric measurements over the years 200515, with some hundreds of terrestrial-type planets expected from transit measurements, and many thousands of Jupiter-mass planets expected from astrometric measurements. ... To request a printed copy, please contact Britt Sjoeberg (bsjoeber@eso.org) . ...
... The first two working group reports (on Extrasolar Planets and the Herschel--ALMA Synergies) were released in 2005 and 2006, and this third report covers the area of Fundamental Cosmology. The Working Group's mandate was to concentrate on fundamental issues in cosmology, as exemplified by the following questions: . What are the essential questions in fundamental cosmology? ... What are the appropriate methods with which these key questions can be answered? ...
... The main task of this Working Group has been to review the state-of-theart knowledge of the Milky Way galaxy, to identify the future challenges, and to propose which tools (in terms of facilities, infrastructures, instruments, science policies) would be needed to successfully tackle and solve the remaining open questions. ... This Working Group has made recommendations that would allow dissecting our backyard laboratory, the Galaxy, even further. ...
. A tree for site navigation will open here if you enable JavaScript in your browser. HOME . ABOUT ST-ECF . CONTACT . FOS . FOS Final Calibration Upgrade (@STSCI) . Documents (@STSCI) . Maintained by Michael Rosa <mrosa@eso.org> .
. A tree for site navigation will open here if you enable JavaScript in your browser. HOME . ABOUT ST-ECF . CONTACT . AstroAsciiData . Maintained by Martin Kuemmel <mkuemmel@eso.org> .
. A tree for site navigation will open here if you enable JavaScript in your browser. HOME . ABOUT ST-ECF . CONTACT . The Optical Infrared Coordination Network for Astronomy ( Opticon ) is a Network to coordinate activities of Europe's major optical and infrared astronomical infrastructures. ST-ECF participated in Network N4, which developed proposals to enhance synergies between space and ground astronomy.