... HST . ... Data . ... HST Overview . Overview . ... Cycle 24 Announcement . ... Retrieving HST Data . ... Instruments . ... Grism Spectroscopy . ... UVIS Flats . ... Instrument Handbook . Data Handbook . ... The Wide Field Camera 3 (WFC3) is a fourth-generation UVIS/IR imager aboard the Hubble Space Telescope (HST). WFC3 was installed in May 2009 during HST servicing mission 4, and replaces the Wide Field Planetary Camera 2 (WFPC2). ... ISR 2016-09: WFC3 Cycle 22 Proposal 14007: UVIS Gain . ...

... Charge Coupled Devices (CCD) are currently by far the most widely used type of detector in astronomy. ... After a brief introduction to the VLT Control System, the VLT CCD Detectors Control Software is presented. The VLT Control System is a distributed system consisting of a set of UNIX Workstations, dedicated to high level operations, such as coordination of sub-system activities and interface to the users, and VME-based Local Control Units (LCU), dedicated to the control of sub-systems hardware. ...

... This limited extent suggests that the currents which disturb the field flow somewhere nearby, probably near the auroral arcs. ... Any electric current, however, must flow in a closed circuit, and since it seemed to be caused (like that of the aurora) by processes taking place in distant space, Birkeland proposed that it came down from space at one end of the arc and returned to space at the other end. ... The electric energy needed to drive the current is taken from the motion, which is slowed down....

Next: Modes of Operation Up: CCD Scientific Performance Previous: Field of View . Thermal excitation of charge carriers from the valence to the conduction band creates a dark current signal which may vary with position in the array, and also has temporal shot noise variation. ... In a device devoid of localized defects which give rise to individual dark current spikes , most dark current arises from electrons generated at interface states at the surface. ...

Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... Предыдущий выпуск (N335) . ... Обсудить на форуме Scientific.RU . ... Подписка на рассылку обзоров на Subscribe.Ru . Обзоры препринтов astro-ph . ... Собственно обзоры препринтов. ... Ранее обзоры также были на Астронете и на Scientific.Ru . ... АНКи доступны на Астронете , а с 2006 по 2008 г. также на сайте Элементы.Ру . ... Ранее они также размещались на сайте Астронет и в архиве моих обозрений (кодировка KOI8) на сайте Scientific.Ru . ...

... A dynamo (or electric generator) is a device converting . ... Faraday discovered that by moving a magnet next to a closed electric circuit, or changing the magnetic field passing through it, an electric current could be "induced" to flow in it. ... Faraday's disk dynamo Faraday showed that another way of inducing the current was to move the electric conductor while the magnetic source stood still. ... Faraday's disk dynamo needs a magnetic field in order to produce an electric current. ...

vps is a perl script which provides a terminal-based interactive view of all process, in a tree-structured format. ... The basic display is separated into a top area, where the process tree is displayed. and a bottom three lines, where additional details on the currently selected process is displayed. ... The bottom area of the selected process shows on the first line the current processes' command and arguments. ... Move cursor down one line . ... Move cursor up one line . ...

Next: NICMOS Science Up: NICMOS Data Calibration and Previous: NICMOS Software at the . ... Reference File Tools . Image Analysis and Reduction . ... These include the tasks used in the STScI pipeline, tools to generate the reference files used by the calibration pipeline tasks, and general image analysis, manipulation, and arithmetic tasks. ... Calnica is used to apply instrumental calibrations to individual datasets, while calnicb is used to process associated sets of NICMOS images. ...

... According to the current estimates, a few percent of Main Sequence B5-F5 stars reveal strong surface magnetic fields reaching the values of tens of kilogauss, which is an order of magnitude greater than the maximal magnetic field in sunspots. ... An important direction in the study of magnetic stars is the study of binary and multiple systems with magnetic components using the techniques of spectroscopy and high angular resolution interferometry. ...

... Statistic files are managed using file generation sets and scripts in the ./scripts directory of this distribution. ... Each valid update appends a line of the following form to the current element of a file generation set named peerstats : . ... This keyword allows the (otherwise constant) filegen filename prefix to be modified for file generation sets, which is useful for handling statistics logs. filegen name [ file filename ] [ type typename ] [ flag flagval ] [ link | ...

... ALMA . ... OOF software . ... Software . ... We present a framework for modelling atmospheric phase errors and their correction by both the fast-switching and water vapour radiometeric techniques. Notable features are simulating three dimensional turbulent volumes instead of flat phase screens, considering three representative configurations of ALMA and parametrisation in terms of phase fluctuations on a 300m baseline, allowing referencing to the site-testing interferometer data. ...

... This chapter describes the functions that allow a plug-in to display a message on the status line, get agent information, and check on the current version of the Plug-in API and Communicator. ... Displaying a Status Line Message . ... The Communicator and Plug-in API major version numbers represent code release numbers, and their minor version numbers represent point release numbers. ... Differing version numbers may mean that the current Plug-in API and Communicator versions are incompatible. ...

An astronomer by training, I currently work at the Australia Telescope National Facility , part of the CSIRO . I am part of the computing group for the Australian Square Kilometre Array Pathfinder (ASKAP), where my job is to develop science analysis software for the ASKAP processing pipeline. The huge volumes of data that ASKAP will produce mean that all observations will be processed automatically in pipelines. ... Matthew Whiting . ... Australia . ... Matthew.Whiting <at> csiro.au . ...

To display information about your processes that are currently running: ps PID TTY TIME COMMAND 13185 ttyAF/ABFd 0:00 rlogind 13187 ttyAF/ABFd 0:01 bash 13218 ttyAF/ABFd 0:00 ps . ... 0:00 bash 3015 ? ... 0:00 bash 18469 ? ... To display information about the processes associated with another user (System V) ps -u rob PID TTY TIME COMMAND 1390 ttyAH/ABHb 0:18 bash 1403 ttyAH/ABHc 0:01 bash 1435 ttyAH/ABHY 0:01 bash 1471 ttyAH/ABHY 5:57 ream 2307 ttyAH/ABHb 0:29 xbiff 2315 ttyAH/ABHb 0:27 xbiff . ...

Solar Flare Origin - critical analysis" Lev Pusti'lnik We analyze current approach to solar flare origin in 3 aspects: a. Pre-flare equilibrium state of current-magnetic structure above active region and its evolution to flare state, b. Possible reasons of stability loss with transition of system in flare state c. Flare energy release in turbulent current sheet and particle acceleration in this system. ...

In the current version .. ... Apogee Alta . Many SBIG cameras and filter wheels . ... FITS file format with exposure, camera, telescope, object and filter header information . Interactive image display and analysis with latest SAOimage ds9 . Interactive data processing in real time with AstroImageJ . ... XmCCD creates FITS image files with comprehensive header information and displays the images using ds9. ... Latest version 5.1 for Apogee and SBIG cameras updated June 17, 2015 . ...

... These are the typical steps through which a CCD image has to go. ... That process is repeated until all the pixels from the 1st line are read out. ... Figure 1: raw CCD image, obtained with a Tektronics 1024; refer to the bottom of the page for the technical details. ... The corresponding raw image presents all the defects and artifacts of the CCD and the telescope. ... These are the most basic steps; every image published should have received the following corrections. ... IfA Hale-Bopp page | ...

Basics of magnetosphere satellite experiment. Main steps of data processing. Modern conception of Earth magnetosphere. ... Empirical models of the bow shock, magnetopause and neutral current sheet positions. Main principles of construction of empirical magnetospheric magnetic field models. ... Current systems in the Earth magnetosphere. Chapman- Ferraro current. ... Tsyganenko 1996 model and its application to satellite data processing. ... Basics of statistical data analysis. ...

... Schedule . cont - continue schedule execution after a halt [SNAP Commands] . ... label - enter tape VSN and check-label (non-S2 drive) [SNAP Commands] . ... newtape - halt schedule until new tape is mounted [SNAP Commands] . ... terminate - end field system operation [SNAP Commands] . ... Listing the Schedule ( list command) [Experiment Operations] . ... New Tape Ready ( label command) [Experiment Operations] . ... Starting a Schedule ( schedule command) [Experiment Operations] . ... Setup . ...

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