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 . ...

Next: Creation of Sky Up: Additional Processing Previous: Additional Processing . The flat field calibration frame may not have the same illumination pattern as the observations of the sky. In this case when the field field correction is applied to the sky data, instead of being flat there will be gradients in the background. ... Like the flat field frames, the illumination correction frames may be data set dependent and hence there should be an illumination frame for each data set. ...

. Next: Introduction Up: ROSAT HRI Recipes Previous: Summary of tasks in . љ . Introduction . Data analysis and Spatial Corrections . A Preliminary Investigation . Dewobble Procedure: treating each obi separately . Additional Tools . An Example - 3C 120 . References . rsdc@cfa.harvard.edu . 1998-06-10

... We developed a methodology to quantify and remove the induced polarization as detected by the FOS spectropolarimeter (Allen 1995), and modified the FOS calibration pipeline to accommodate post-COSTAR FOS Blue spectropolarimetry observations. ... The post-COSTAR polarization correction has been implemented for FOS Blue spectropolarimetry data in Version 3.0 and higher of both the calibration pipeline, calfos , as well as in the stand-alone polarimetry processing task, calpolar . ...

Since the 1980s VLBI observations at two frequencies, 8.4 (X-band) and 2.3 GHz (S-band) have been used to locate the positions of compact radio sources with unprecedented accuracy. ... Observations of selected strong compact extragalactic radio sources, using this now mature technique, have been used to define and maintain a radio reference frame with sub-milli-arcsecond (mas) precision. ... Additionally, it will provide more reference sources for phase referencing VLBI observations. ... References . ...

Proposal Identification No.: A2772 Arecibo Observatory Date Received: 2012-Sep-03 18:22:58 William E. Gordon Telescope Observing Time Request COVER SHEET Section I - General Information Submitted for Sep 1 2012. This proposal has been submitted before. ... It provides a rich new database for exploration of the magnetic field of the Galaxy, the properties of the magneto-ionic medium, the polarization properties of a vast number of extragalactic sources, and of intergalactic fields. ...

... 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 . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Lightcurve of HW Vir from images obtained using the Faulkes Telescope South, operated by Las Cumbres Observatory . The blue triangles show the difference between two stars whose brightness is constant. ... This shows the value of the Faulkes Telescopes in the follow-up observations of eclipsing binaries with the aim to detect and characterise additional circumbinary companions. ...

G1.9+0.3 has been recently identified as the youngest known Galactic supernova remnant, about 150 years old at most. ... The Youngest Galactic Supernova Remnant: G1.9+0.3 . ... X-ray spectral variations in the youngest Galactic Supernova Remnant G1.9+0.3 . ... Radioactive Scandium in the Youngest Galactic Supernova Remnant G1.9+0.3 . ... Expansion of the Youngest Galactic Supernova Remnant G1.9+0.3 . ... Supernova Ejecta in the Youngest Galactic Supernova Remnant G1.9+0.3 . ...

... User Portal . ... Science Users Information > Observing with ESO Telescopes > Phase 2 Preparation > Additional Information . ... Service Mode Philosophy . ... DDT Observation . TOO Observation . ... Additional Information . Phase 2 Users Workshops . User Feedback . The User Support Department . This section gathers information on past events and documents of interest to ESO telescope users: . Presentations from Phase 2 Users Workshops . Results of User Feedback campaigns . ...

. Additional settings . Number of observations found: . 17 . ADS number: . 03353 . WDS number: . 04385+2656 . Components: . AB . All (17) . Photo (15) . CCD (2) . Epoch . JD . Separation . e(S) . N(S) . e1(S) . Pos.angle . e(P) . N(P) . e1(P) . N . Orient. Meas.code . Detector . Back . Abbreviations . Main Page .

Appendix: COODINATES OF OBSERVATORIES . This list is the extension of Marsden's list of observatories published in тАЬMinor Planet CirculariesтАЭ. ... тАЬThe Astronomical Year-Book for the year 1942тАЭ, 1941, p.355-360, in Russian . ... The numbers 0-999 were taken in according to Marsden (Ref.1), the numbers from 1000 were appropriated by us. ... For observatories with numbers 0-999 and code of reference 1* the heights were taken by maps . ... For numbers 0-999 the code equals 1 usually. ...