... This output dataset contains the following binary-table extensions: . RATE . All the keywords in the RATE extension of the input source time series are copied over. ... BKGRATIO - a real-valued keyword which records the ratio between the background collection area and the source collection area. ... RATE - the source TS in counts s . ... BACKV - the local background TS, normalised to the source collection area. ... This extension contains GTIs which cover all the non-null RATE values. ...

... The FOC suffers from various types of background, the most important of which are thermal electrons, Cerenkov radiation from high energy particles, geocoronal emission lines, zodiacal light, and light scattered within HST from the bright Earth or Moon. ... From on-orbit measurements using the f /96 camera, the former background has been found to vary with solar zenith distance (ZD); see Sections 6.4, 6.5, and 7.0 of the FOC Instrument Handbook , version 7.0, for more details. ...

... 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. ...

... Division , Virginia Polytechnic Institute, Blacksburg, VA, 1954-1955; College of William and Mary, Williamsburg, VA, 19591961 PRE- NASA EXPERIENCE: National Advisory Committee for Aeronautics, Langley Aeronautical Laboratory, Langley Field, VA (1954-1958) · Aerospace Technologist, Fluid and Flight Mechanics Branch (1954-1958) NASA Langley Research Center , Hampton, VA (1958-1961) · Aerospace Technologist, Fluid and Flight Mechanics Branch (1958-1961) · Transferred to ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

Next: Model Spectra for Spectral-Fitting Up: Spectral Analysis Previous: A Quick Look at . ... For ROSAT PSPC data, this conversion is done during the on-line (SASS) processing. For IPC observations, the instrument gain varies both across the detector and in time, and is applied during off-line processing (PROS) using the BAL histogram. By default, spectra are extracted in PI bins for PSPC data and in PHA bins for IPC data. ... Special techniques are required when using Einstein IPC data. ...

Next: The STScI NICMOS Calibration Up: No Title Previous: CONICA: The high resolution . The STScI NICMOS Calibration Pipeline . Introduction . ... Dark Current Subtraction . ... Input Data . ... Scalar Background Subtraction . 2-D Background Subtraction . ... Status and Goals of the NICMOS Calibration Plan . ... Photometry . ... Photometric Performance of NICMOS . ... NICMOS Photometry. ... ST-ECF Grism Spectrum Software for NICMOS Grism Data . ... Analysis . ... STScI NICMOS Software . ...

... Science Users Information > Data Handling and Products > Science Data Products Forum . ... Science Software . ... Science Data Products Forum . ... The ESO Science Data Products Forum is a platform for sharing ideas,methods, software and data to assist with the production of science data products from ESO telescopes. ... Software, calibration data or documents up to 100MB in size can be attached to any post.This forum is not meant to distribute scientific results or data products to the community. ...

... Primordial theory review : Dick Bond . Defects and the CMB review : Andy Albrecht . ... Gravitational wave contribution to CMB anisotropies : V.B. Lukash and E.V. Mikheeva . C_l from cosmic strings : Lloyd Knox . Some aspects of CMB anisotropies induced from topological defects : Mairi Sakellariadou . ... CMB anisotropies from scaling sources : Ruth Durrer . ... SZ observations I : Sarah Church . ... Holes in the microwave sky? ... Detecting cosmic strings in the CMB : James Robinson . ...

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 . ...

Astrophysics Space Missions . ... Space Physics Missions . Data Centers . ... Lectures in Space Science . ... Compton Gamma Ray Observatory (GRO) . ... University of Arizona , Theoretical Astrophysics Program Return to the top of this document . ... JHU/APL AMPTE/CCE Space Science Data Center . ... National Space Science Data Center (NSSDC) . ... Astrophysics Data Facility (ADF) at NASA/Goddard Space Flight Center . ... Center for Atmospheric and Space Sciences/Utah State University (CASS/USU) . ...

... abspixel, image coordinate units . ... amplitude, uv select . Selecting UV Data in . ... antennae, uv select . ... auto, uv select . ... calibration, application . ... Miriad 's Calibration Model . ... Image Deconvolution . ... datasets, archiving . ... Miriad Data Disks at . ... ddec, uv select . ... dra, uv select . ... FITS files, visibility data . ... frequency, uv select . ... increment, uv select . ... select, u-v data selection . ... spectral index . ... visibility datasets, calibration . ...

... Apache HTTP Server Version 2.2 . ... How Apache Starts . ... If the Listen specified in the configuration file is default of 80 (or any other port below 1024), then it is necessary to have root privileges in order to start apache, so that it can bind to this privileged port. ... The recommended method of invoking the httpd executable is to use the apachectl control script. ... Trying to start the server when there is another instance of Apache or some other web server already bound to the same Port....

Next: Observing the Old-Fashioned Way (Gui-Free Observations) Up: Spectral Line Appendices Previous: OLD Basic Analyz Routines For use with data taken BEFORE March 6, 2000 . This appendix contains example analyz sequences used to look at HI spectra. ... Additionally, if you have not run analyz before, instruction (2) should read: If you have not, instruction (3) should read: . ... 7) redln < rec < n : This first stores the individual ON/OFF - 1 data dumps into registers 100 - 100+ - 1. ...

... SSAU History . ... Representatives of SSAU and the Polytechnic University of Turin held talks in Samara to discuss prospects for development of international cooperation in structural dynamic analysis of rotar systems of aircraft engines. ... During the negotiations, it was agreed to establish a research laboratory for structural dynamic analysis of aircraft engines in SSAU. ... Daniel Vernyano, Professor Muzio Gola and Professor Sergey Falaleev in SSAU museum of aviation and space exploration . ...

Tail Probe is one of the satellites of the INTERBALL program. ... Collection of the orbital elements | ... Flight situation analysis during operations scheduling . ... Two stages of the orbital situation analysis are presented: . ... The satellites motion calculation during the flight situation analysis is based on the orbital elements, determined by the Ballistic center at KIAM RAN. The modified (by backward integration) orbital elements are usedduring the aposteriory situation analysis. ...

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T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

Blackholes Forum Message . Forums: . ... Post . ... Dimensional Analysis . ... Post Message | ... Posted by Richard Ruquist on December 16, 2004 03:58:32 UTC . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... The Cosmic X-Ray Background . ... Now, peering through a hole in the obscuring gas and dust of our own Milky Way Galaxy, the powerful orbiting XMM-Newton telescope has recorded this deep image of the x-ray sky , resolving some of the mysterious background into many faint individual sources. ... Публикации с ключевыми словами: черные дыры - black hole - XMM-Newton - x-ray background - cosmic microwave background radiation - рентгеновское излучение - рентгеновский фон - X-ray . ...