Next: Airmass Calculation Up: Flux Calibration Previous: Flux Calibration . To calibrate the chromatic response, observations of a standard star (preferably more than one) are needed, for which the absolute fluxes are known. The spectral response curve of the instrument can then be determined with the command RESPONSE/LONG , and absolute fluxes for the objects of interest are obtained with CALIBRATE/FLUX . ...

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• Catalog Construction
• Echelle Spectra
• Introduction

... As a consequence, the spectral height and size of the resolution element (resel) have changed. ... The ETC will be updated for phase II of Cycle 21, in the meantime the correction factors given in the Known Issues page of the ETC should be used. ... Since the ETC uses a resolution element that is 5 times smaller (6 pix), it will overestimate the time required to achieve a certain S/N per 30 pixel resolution element, while underestimating the S/N per 30 pixel resolution element for a given time. ...

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• Changes Since the Previous Version
• Previous Instrument and Data Handbooks
• Previous WFPC2 Advisories

Next: The ESO VLT CCD Detectors Software . ... Up: Instrument-Specific Software . ... The framework for data calibration and analysis of the VLT instrumentation is presented, based on the concepts of a calibration plan, pipeline calibration, quality control, and archiving of calibrated data for a ground-based observatory. ... Quality Control Pipeline provides quality assessment for instrument performance data and observing conditions, and tests the results of the Reduction Pipeline. ...

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• On-The-Fly Re-Calibration of HST Observations
• Real-Time Linux Driving a Spectrometer
• VLT Data Quality Control

XMM-Newton SAS V5.1 Scientific Validation and Data . ... This page contains the Scientific Validation Report for SAS V5.1 (.ps.gz) as well as the data use for this validation. ... The SAS V5.0 Scientific Validation Page can be found here . ... Data Files Handbook (Issue 2.2). ODF/SDF Interface Control Document (Issue 2.9). The following datasets have been used for the Scientific Validation of SAS V5.1. ... Pipeline Products : Each Product Group is available separately as a .TAR file. ... ODF . ...

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• Combination of the selected observations to make the templates and build CCFs
• Procedure
• Generation from In-Orbit Data

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The first claim that HI could be associated with a dSph-like system was for the dIrr/dSph system Phoenix (Carignan, Demers & CУДtУ? ...

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• An alternative approach to calibration
• VSOP Observing Schedule
• ASKAPsoft processing of BETA data CentralProcessor 0.11 documentation

... Bojan Nikolic web pages (r. 329) . ALMA . ... AATM is a re-packaging of the version of ATM as used by the ALMA online calibration software ?TelCal?. ... The main reason for AATM is to bring the version of ATM used by ALMA to an as wide an audience as possible. ... This version of AATM therefore corresponds exactly to version on ATM-0_3_0 branch of the CVS, and will (I believe) be the same as what is used in ALMA 7.1. ... Computing dispersive atmospheric delay with AATM . ... ATM and AATM . ...

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• ALMA WVR phase correction algorithms and software Bojan Nikolic web pages (r.
• Inference of Coefficients for Use in Phase Correction Bojan Nikolic web pages
• OOF Reduction Software Bojan Nikolic web pages (r. 329)

... Science . ... Science Users Information > Science Publications > Science Announcements . ... Observing with ESO Telescopes . ... Published: 04 Apr 2014 . ... First data releases of the Elais-S1 and CDFS fields have just been made available. ... The zCOSMOS-bright advanced data products are now available via the Science Data Products query form of the ESO Archive . ... The Call for Proposals for observations at ESO telescopes during Period 94 (1 October 2014 - 31 March 2015) has been released. ...

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• ESO - FORS2 and UVES Science Verification
• VLTI Calibrator Selection Help Page
• PAM Bulletin

... Previous: Список адресов . Список литературы и документации . ... available from http://www.vsop.isas.ac.jp/ops/VSOG_doc.html . draft dated 1 July 1996. ... available from http://info.gb.nrao.edu/ovlbi/calibrationLog.txt . dated 12 March 1996. ... version 2.0, dated 14 Dec 96. ... version 2.0, dated 19 Feb 1996. ... version 1.0, dated 11 October 1996. ... version 3.0, dated 10 April 1996. ... version 1.0, dated 05 Sep 1997. available from http://www.vsop.isas.ac.jp/ops/VSOG_doc.html . ...

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• References and Documentation
• Ground Radio Telescope (GRT) Products
• Navigation Post-Observation Products

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

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• STScI NICMOS Software
• No Title
• Preface

... xs qpspec source qpoe file (xdata$rp110590n00.qp): xdata$rp110590n00.qp[ time =(1606720.00:1607479.00)] source region descriptor ():c 6947 9325 2' background qpoe file ( ): bkgd region descriptor (): a 6947 9325 3' 4' root name for output files [root_obs.tab, etc.] (): arlac_1 ds: 0 file : arlac_1_obs.tab scale: 0.00 mission: 20 seqno: CA110590P.N6 instrument: ROSAT_PSPC sub-instrument: 1 no. pha channels: 34 mean off-axis angle of events (arcmin ...

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• Notes on IPC and PSPC Spectral Fitting
• CCD Systems and Their Hardware
• Quantum Efficiency Correction (a.k.a. `flat-fielding')

... The properties of the currently available receivers are given in Table 3 . The columns of the table give the receiver name, frequency range, the typical System Temperature (T ), Gain, System Equivalent Flux Density (SEFD) and Half Power Beamwidth (HPBW) for zenith angles below 15 (as measured by Arecibo staff.) ... Full details of the ALFA observing system, its performance, how to join an ALFA Consortium, and the latest ALFA news is to be found via, http://www.naic.edu/alfa/ . ...

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• Pulsar Observing
• Introduction
• CORRELATOR BOARDS

Next: Research Up: Heritage Previous: Buildings Contents . The policy of the Armagh Observatory is to preserve and progressively restore the historic instruments, buildings and telescopes for future generations, and where possible make them available for display to visitors and the general public. In future years, subject to available funding, the Observatory plans to: . construct a new archive and historic instrument repository including an extension of the Library and Library Annex; . ...

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• J.G. Doyle, Research Astronomer
• Nuffield Science Bursaries at Armagh Observatory
• First Observation of a Close Earth-Approaching Near-Earth Asteroid Using the

... The choice of the spectrograph design (Fig.2) is determined by the quantity R, the overall dimensions of the PF cage and the restrictions on the rigidity of the structure of the device. ... As the camera's objective a fast 4-lens aplanat is used having a focal distance F cam =140 mm and a relative aperture of 1:1.8, the resolution at the centre is no less than 80 gr/mm, that over the field at a distance of 3 mm from the edge along the frame ( ) diagonal is 35 gr/mm. ...

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• Optimization of spectroscopic observations
• Observations and spectra reduction
• Determination of atmospheric parameters and calculation of chemical composition

Next: The Transmission Gratings Up: The Instruments Previous: The Instruments . ... A conventional cross-grid charge detector reads out the photo-induced charge cloud and the electronics determine an arrival time to 16s, and the position with a resolution of about 18 m or 0.37 arcsec. ... The Massachusetts Institute of Technology's Center for Space Research, in collaboration with Lincoln Laboratories, developed the detector system and manufactured the CCDs; Lockheed-Martin integrated the instrument. ...

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• The COOC Criterion (Criterion of Observations versus Calculations)
• World Wide Web version
• Introduction

... General information . ... Staff . Research staff . Technical, administrative & librarian staff . ... Staff in alphabetic order . Research . ... Technical reports . Projects . ... General interest seminars . ... IT Services . ... Information . Resources and catalogs . ... Historical highlights . Historical research . Historical archive . ... Projects and events . Online resources . ...

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• Program parameters
• Another View of M33
• The Arcetri Spectral Code - E.Landi and M.Landini (2001)

PhD Thesis (PDF) . ... The evolution of stars and gas in galaxies. Observing the atomic neutral hydrogen (HI) 21 cm emission and radio continuum emission of galaxies. ... The goal of research is to quantify the neutral atomic hydrogen (HI) gas content galaxies as they evolve with time. ... Neutral atomic hydrogen gas produces a radio signal that can be used to directly measure the amount of gas present. ... USyd Summer Research Scholarship Report (PDF) . ... Research Topic Write Up (PDF) . ...

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• Marc White - Astrophysicist - The Australian National University
• Research Interests
• Siding Spring Survey Previous News

... This project was my personal idea quite some time ago: to port XFree86 , the free and optimized X11R6 implementation to OS/2. ... XFree86/OS2 is now available as a public version 3.3.6, which does not expire and for which full source code is available. ... x.physics.usyd.edu.au Please send a mail to me with a complete URL if you have set up a ftp server or a mirror for XFree86/OS2. ... Available ported software . ... I'll still be available as the mediator between XFree86/OS2 and general XFree86. ...

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• References
• Image: Harvard Medical School, view from the previous building
• Image: This shot is slightly better than previous.

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

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• Zeldovich-100 / International Conference / Moscow, Russia
• RTT150, Russian-Turkish 1.5-m Telescope
• Пширков Максим Сергеевич (ПРАО АКЦ ФИАН)

Peremennye Zvezdy ( Variable Stars ) 28 , No. ... Received 15 November 2007; accepted 21 February 2008. ... Multi-night CCD observations of the previously unknown variable GSC 02805-00766 reveal its nature as a contact binary. We present its light elements and light curve. ... It was monitored by S. Kleidis in autumn/winter 2006 and autumn 2007 for fifteen nights. ... Fig. ... The phased light curves in both filters are given in Fig. 1 and Fig. 2, they are typical for W UMa systems. ...

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• Астронет > 375: Candidate Quark Star
• A Lonely Neutron Star
• Астронет > A Lonely Neutron Star

System of astrometric databases of Pulkovo observatory. ... The purpose of these observations is the determination of precise coordinates of Solar system bodies, which is necessary for development and improvement of motion theories, and for studying the evolution of the Solar system. ... Accuracy of photographical observations is about 0.2-0.3 arcsec for equatorial coordinates and 0.1-0.3 for relative coordinates of planetary satellites, depending on object and observational conditions. ...

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• Pulkovo Database of Observations of Solar System Bodies: Help