... The source-list file produced by omdetect contains a list of the positions of all the detected sources, the parameterizations of their shapes, their extracted count-rates, and corrected count-rateswhich contain some of the corrections that are needed to convert the raw rates to the rates that can be used to compute instrumental magnitutes. ... For example, a source with a bad pixel and lying on or close to a read-out streak would have bits 0 and 1 set and thus have a quality flag value of 3. ...

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• Description
• Extended Sources

Next: Bivariate polynomial interpolation Up: Echelle Spectra Previous: Removal of particle . The estimation of the background is one of the critical points in the reduction of echelle spectra for two reasons. ... diffuse light in the interorder space coming from adjacent orders. sky background spectrum . ... These locations are defined when performing the order definition (command DEFINE/ECHELLE or DEFINE/HOUGH ) and can be displayed by command LOAD/ECHELLE . ... Sky background definition . ...

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• Combining Methods
• Cleaning Images
• Using the COMPUTE Command

... Computing the true count rates for digital data. ... The following equation is used to find the count rate. x = ( raw counts / sample time ) . ... True count rates for digital data are corrected by using the first equation for a point source and the second for an extended source. a = ( y - pre_amp - darkrate ) / ( highvolt x pt_effic ) . ... True photocurrents (count rates for analog data) are corrected by the first equation for point sources and the second equation for extended sources. ...

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• HST Cycle 11 Late Breaking News
• Guidelines for Preparing Viewgraphs and Computer based Presentations to be used
• HSP Data Handbook

... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

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• A Method for Minimizing Background Offset Errors When Creating Mosaics
• Recreating Einstein Level One Processing Exposure Masks and Background Maps in

The technical memorandum: Time and Time Interval Measurement with Application to Computer and Network Performance Evaluation (PostScript) describes a number of techniques for conducting experiments typical of computer network and transmission systems engineering. ... The usual data collected during a performance run of some experiment might include time offsets, time delays, frequency offsets and various error statistics. ...

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• Further Information and Bibliography

... Posts tagged ?coloured background? ... A fast Bayesian approach to discrete object detection in astronomical datasets ? ... ArXiv] A fast Bayesian object detection? ... Comment . ... Entries RSS . Comments RSS . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

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• Comments on: Background Subtraction [EotW] By: hlee By: vlk By: hlee By: vlk
• The AstroStat Slog background
• The AstroStat Slog Blog Archive Background Subtraction [EotW]

A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...

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• aorient

Optics includes the surveys and adjustments to the reflectors as well as the pitch, roll, and focus measurements. ... 080515: platform/tiedown motion during vlbi cal scan . ... Surveying the primary reflector . Surveying the dome position from AO9 . ... year 2002:Td inches/platform inch, TdPos vs temp at platform focus position. dec03: platform corner height vs za when looking at tower. jan10: dynamic load on tiedowns from platform motion. 22feb10: fit tiedown tensions using 2008,2009 data . ...

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• model18

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Parkes | ... Parkes projects/positions database . ... R.J. Sault, G.J. Carrad, P.J. Hall, J. Crofts, 2000, ``Radio path length correction using water vapourradiometry'' submitted to Proceedings of WARS 2000 . Bob Sault, Peter Hall, Graeme Carrad, 1999 "Atmospheric phase correction for the ATCA" , presented at URSI 1999 (Toronto, Canada). ...

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• ccontsubtract CentralProcessor 0.11 documentation
• Computing Support at ATNF
• koords: interactive co-ordinate fitting

... This is possible at modest cost due to the low moments of inertia of the telescope and enclosure. ... This same performance will be achieved in higher winds when the telescope enclosure is facing away from the wind, or by using wind screens. ... The telescope system (MILT) will be remotely operable with an on-site operator's assistance by an astronomer located at one of the ARC member institutions. ... Mean Wind Speed . ... Offsets > 10 deg: 1 arc sec rms max . ... 5 sec max, tracking to tracking . ...

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• TclActor Internals
• lsst.mirrorCtrl: mirrorCtrl: Interface to Galil mirror controllers
• Writing an Actor Using twistedActor

... Background scans are automatically loaded with the get_data procedure, but can be manually loaded, for example after computing the biases when the background has been zeroed before, using the following procedure. get_bgdata Backgroundtable created. ... We flag these data manually (just plot channel 11 and then use Util|Edit to flag; re-plot to check whether all the data has been flagged); when OYSTER averages point data, any data without valid background scans will be discarded. ...

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• Reduce delay data
• Astrometry
• Bias correction

Application form for loan of NAG software used in Part I I Computational Physics Background The University enjoys a site licence for the NAG F95 compiler and numerical library installed on PWF-Linux. ... However, it is important that you read and obey these conditions. ... Summary of Licence The licence the tution, we may the copy must copy is unlikely University enjoys is institutional. While you can be considered part of this instiloan you a copy for use relating to the work of the institution. ...

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• ALMA Phase Calibration Techniques at the Cavendish Astrophysics Group
• OptInt PmWiki : Delay Line Software Libraries | History
• Comparison of Microwave Background Radiation models and experiments

First at each page there a short heading describing the cable. After that there is at each page there is one or more pictures of the connectors. ... This means that we don't know what kind of connector it is or how it looks. (to the computer) . ... Below the pictures there is texts that describes the connectors. ... 25 PIN D-SUB MALE to the Computer . ... Sometimes when not the same pin is connected to each side there is another column describing the name at connector 2. ... Data Bit 0 . ...

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• HwB: Adapter Tutorial (Offline)
• HwB: Connector Tutorial (Offline)
• HwB: Circuit Tutorial (Offline)

... Report on Cosmic Call 1999 . ... Cosmic Call Sessions . ... This Report outlines methodology, hard- and software, which were developed to transmit first public Interstellar messages from Evpatoria Deep Space Center (EDSC), and describes four Cosmic Call Sessions, which were fulfilled in EDSC on May 24 and June 30 - July 1, 1999. ... Each Cosmic Call consists of two parts. ... Dutil Message, . ... The software for gathering all messages and creating the Cosmic Call stream, was written on C language. ...

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• Benchmarking UNIX™ Systems
• Open Systems Handbook: A Guide to Building Open Systems

... My Page On imeem . ... Internet Movie Database . ... The Comet Home Page . The ADS Abstract Database . ... Asteroid Showers on Earth after Family Breakup Events Another paper, but only the abstract.. ... Todd's Atomic Homepage . ... Linux Myths - Dispelled . The Video Game FAQ Archive . ... The Lunux/Alpha Home Page . ... Paul's ascii Art Archive . ... DIY Country & Western . ... The 80's Text File Archive . ... BACK To Scott's Home Page, before you find the .. ... DIY Atomic Weapons . ...

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• William Herschel
• High Performance Computing Course
• Background

This tutorial is written in order to ease the transition from the very common and popular programming language Fortran 77 to the more modern Fortran 90. ... It is required that the reader is knowledgeable in Fortran 77. ... Those who don't know Fortran 77, can read a tutorial book on Fortran 77, or a complete textbook on Fortran 90. ... All statements in Fortran 77 are explained in Appendix 2 and the summary of the news in Fortran 90 are in Appendix 3. ... Novosibirsk, May 1996 . ...

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• Fortran 90 systems
• Explanations for solar physics computing page
• Colors and backgrounds

The original files with the data were in different formats. ... Such files were named "standard data files" and linked to the database. They can be easily transformed to any desirable format by a code. Here we present two simple computer programs of this kind. ... When running the code, you can specify columns in the output file: wavelength, energy (eV) or wavenumber (cm -1 ) as the first column, and complex refractive index or dielectric function as the second and third columns. ...

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• AI SPbU library of scattering codes
• Textbook on Computer technology for pupils
• Course of Non-numerical Programming

Blackholes2 Forum Message . Forums: . ... Brilliant! Thanks . ... My interpretation of the MM experiment was that it did not prove the speed of light was constant in all directions because it could not see direction. ... People assume that the space containing the experiment is rigid (or 4-D grid space-time with fixed scale. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Teleportation - an Astronomy Net Gravity Forum Message
• Re The Computer For Dob - an Astronomy Net Eyepieces Forum Message
• Gkr Computer Consulting, AstroGuide Listing

... Dr. Ravil Nazirov is the head of the workshop, and Andrew Ananjev is the secretary of the workshop. ... The workshop is used to be held in the last decade of the month, preferably on Tuesdays. ... The next session will take place October 29, 1996 . ... There is "CONPAS" mailing list which you can join to discuss issues of problem solving and to be automatically notified of important dates and decisions with respect to the coming sessions. ... Secretary of the Workshop: Andrew Ananjev . ...

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• INTERBALL-TAIL KP changes
• mission1
• Discussion of MOC and "Face on Mars"

... Colors of Sunlight . S-4A.Color Expts. ... Here is your opportunity to demonstrate the three-color theory by using your computer. I am indebted for this to Joe Burns , on whose color demonstration file it is based. ... You see below two tables with colored fields. ... blue . ... D0FBFF gives the intensity of the three colors which make up the background: D0 is the intensity of red , FB is the intensity of green and the second FF is the intensity of blue , the maximum blue you can get. ...

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• "Exploration" as a Classroom Resource