Calibration and Data Reduction . Standard calibration observations are obtained and maintained in the HST archive at the STScI, and can be obtained by external users using StarView. ... For WFPC2, the inherent stability and uniformity of the CCD sensors, the well calibrated filters, the internal flat field calibration system, and an archive populated with flat field images obtained in SLTV prior to launch improve the scientific data analysis and productivity. ...

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• COS Instrument Handbook
• STIS Instrument Handbook
• COS Data Handbook

Next: CCD observations and data Up: Observations and data reduction Previous: Observations and data reduction . Spectra obtained in the IPCS mode with the grating B1 (600 grooves/mm) cover the range of 3600 - 5500 ? ... Sky spectrum was accumulated simultaneously in the aperture of the same size displaced by 20'' along the current azimuth direction. ... Next: CCD observations and data Up: Observations and data reduction Previous: Observations and data reduction root . ...

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• Observations and data reduction
• Observations
• Optical spectroscopy

Next: Results & Discussion Up: Coronal Hole Diagnostics out Previous: Introduction . ... The dates of the observations discussed here, their locations, pointing, slit sizes and exposure times are given in BTDW. ... Line fits are given by the dotted line. ... An estimation of the errors in the derived parameters was obtained using the GA-derived parameters as an input for a ``classical'' IDL-CURVEFIT procedure (Peter, 1999; Peter & Judge, 1999). ...

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• Observations with the Faulkes Telescopes
• ULTRACAM Observations of Subdwarf B Stars

Lisnyky observatory of A&SPD is located in the village of Lisnyky in Kyiv region. AZT-8 (right) Diameter 0.7 m, Newton, Cassegren. ... Spiral jets of comet Hale-Bopp have been observing on the 3-rd of April, 1997 with 70-cm reflector and image intensifier, time of exposure: 1 second, field of vision: 1.5 minute of arc. This color image was obtained with Fuji color film (Super Plus 400) in focal plane of the 70-cm reflector (F = 27 m) at Lisniki Observatory by A.M.Evtushevsky. ...

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• A computer controlled low light photometer for nightglow observations
• Gas and dust shells of the Hale-Bopp comet
• Optical static Fourier spectrometer

... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... Related External Services . ESO HST Image Galleries . ... ESO Data Access Policy . ... ESO Science Newsletter . ... ESO Annual Reports . ... Seminars at ESO Santiago . ... Seminars at ESO Garching . ... ESO Telescope Bibliography . ... External routines for sky subtraction can be applied to MAPPED_ALL_SCI_LSS. After the sky subtraction the SPECPHOT_TABLE product can be used to perform the flux calibration. ...

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• Comet Halley
• ESO - How do I find out the exposure time for a given observation?
• ESO - Thesis Topic: ALMACAL: the evolution of the molecular gas in galaxies

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

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• Observing with VISTA
• VISTA - Visible and Infrared Survey Telescope for Astronomy

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Parkes | ... CSIRO ATNF Data Archives . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

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• Reducing a pulsar and cal observation.
• Observations
• Pulsar Group Main/ANDSATNF

... Star formation . ... The puzzling core of the Phoenix cluster: deep X-ray observations . ... SPT-CLJ2344-4243 shows a strong cool core with a potential mass deposition rate of ~3000 Msun/yr derived from the X-ray luminosity. ... The spectral analysis of the deep XMM-Newton observation of the Phoenix cluster found an average mass-deposition rate between 210 and 620 Msun/yr for the gas in the temperature range 0.15-3.0 keV (subject to calibration uncertainties). ...

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• Procedures for Observations
• Guided visits and observations of the sky
• K-band Arcetri Obscured Supernova Search - What is the KAOSS Projrect?

.

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• Astro-2 and the UIT Experiment

... 172, Astronomical Data Analysis Software and Systems VIII, eds. D. M. Mehringer, R. L. Plante, & D. A. Roberts (San Francisco: ASP), 395 . ... We have investigated the internal zero-points of the HST's Faint object spectrograph (FOS) on-orbit wavelength calibration between 1990 (launch) and 1997 (de-commissioning). ... For BLUE systematic shifts of the zero-points are present, which amount to a maximum offset of 7 pixels (1.75 diodes) over the entire period. ...

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• Modern CCD Observations of Moving Celestial Objects: Algorithms and Software
• On-The-Fly Re-Calibration of HST Observations
• ADASS 2002 Conference Proceedings

... PUL2 catalog contains original absolute proper motions of 59646 stars in 149 fields with galaxies. ... Mean errors of relative proper motions in PUL2 catalog is 5.5 mas/year. ... The external mean error of one relative proper motion of a bright star of PUL2 catalog is 9 mas/year for both of coordinates. ... After issue of UCAC2 catalog, we decided to improve accuracy of proper motions, using Pul-3 coordinates (of 1950s) as the first epoch, and UCAC2 coordinates as the second epoch. ...

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• Pulkovo databases: photometric observation

... Radio observations of the Marano Field , carried out with the Australian Telescope Compact Array at 20 and 13 cm, are presented. ... Excellent optical and X-ray data relative to this field are available. We plan to obtain a deep X-ray, optical and radio survey in order to study the nature of the sub-mJy population (a population of radio sources at very low radio fluxes) and the energy distribution and evolutionary properties of faint radio galaxies and AGNs. ... The radio data . ... 1992) ). ...

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• Determination of the relative orientation between radio and dynamical reference
• Astrophysics Group COAST Astronomical Results
• CO in NGC 1530, aperture synthesis of a barred spiral

... List of SAS threads This thread illustrates you how to reprocess Observation Data Files (ODF) to obtain calibrated and concatenated event lists, which can be directly used to generated scientific products (images, spectra, light curves) through evselect or xmmselect . ... run the EPIC reduction meta-tasks. ... emproc For the pn: . ... emproc selectinstruments=yes emos1=yes . ... Concatenated and calibrated EPIC event lists are already available in the PPS Pipeline Products . ...

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

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• Galaxy sector, archive 2012
• GRB090726
• Galaxy sector, archive 1996

For the calibration of RATAN-600 data you will need to Download Nobeyama Fluxes (1, 2, 3.75, 9.4, 17 GHz): year 1999 2000 2001 2002 2003 . Brief description of Work Scan . Main functions of processing, realized in the program are: . ... Correction of various (not fatal) defects of data; . ... Calculating of the lower enveloping curve or an average scan from observations data for a few days; . ... COMMENT This table contains the set (TFIELDS) of 1-dimensional (TFORM# . ... AZIMUTH = 'float' / . ...

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• Observations and spectra reduction
• Optimization of spectroscopic observations
• Fabry-Perot Interferometer: Data cubes

... Contact A Problem of an estimation of accuracy of the asteroid CCD observations . The Minor Planet Center supported by the Interntional Astronomical Union is the main office for keeping observational data of the small Solar System bodies and their investigations. ... At Pulkovo Observatory we are estimating an accuracy of the CCD asteroid observations obtained by amateurs and professional astronomers all over the World using the MPC database. ...

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... Equivalent widths of Ca I absorption lines at 6122?, 6162?, and 6494? and Fe I at 6103?, 6200?, and 6574? were measured for several spectral standards. ... The spectral types of the target stars were determined by comparing source line ratios to those of standard stars. ... The uncertainty in the spectral type is about one and a half sub--types. ... Northwest of the belt, again all but one source shows Li in absorption, but only one star (out of 13 = 7.7%) shows an H emission line. ...

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• Champlane Observation: CTIO 4m/MosaicII June 22-23, 2009
• Correlating Spectral Data with Spatial Gain Variations
• Chandra Images for G109.1-01.0C

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

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... Old World First Asteroid Radar Echo. ... It testifies that 4179 Toutatis is a double object like asteroid 4769 Castalia. ... Interference of Radar Echo from the Binary Asteroid 4179 Toutatis. ... An analysis of the 6-cm radar data revealed quasi-harmonic oscillation of the echo?s ?central? Doppler frequency with a period of about 14 sec and a deviation of about (0.7*B) Hz, where B is the echo bandwidth, which for 4179 Toutatis was equal to 2.1 Hz and 1.9 Hz for 1992 Dec 8 and 9, respectively. ...

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• Atmospheric influence on the different radioengineering systems functioning.

Peremennye Zvezdy ( Variable Stars ) 32 , No. ... We report on a new episode of decretion disk formation in the IGR J06074+2205 system. ... From a study of three HeI lines, the rotational velocity of the star was determined as km/s. After five years of spectroscopic monitoring of IGR J06074+2205 (Reig et al. 2010), a reversion from emission to absorption of the H line and hence disappearance of the equatorial disk was reported. ... Reig P., 2011, Astrophys.& ...

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