The shutter is a two-blade mechanism used to control the duration of the exposure. A listing of the possible exposure times is contained in Table 2.3 . ... However, an exposure time shorter than the minimum allowed (0.11 seconds) is, instead, rounded up to this minimum value. ... Exposure times where the PSF is affected by the shutter blade flight time are underlined and flagged with table footnote (2). ... 2 Exposure times where the PSF is significantly affected by the shutter blade flight time . ...

... Of the 4 buttons in the bottom part of the configuration screen, three deals with power level adjustments: the 'Power control' button brings up the power control window where You can adjust the power levels of the different parts of the IF/LO system, the 'Power levels' button brings up the power level monitoring window (which also can be run outside CIMA as the 'powerwin' program), and the 'Adjust Mock power' button which adjusts the power levels on the Mock spectrometer (but nowhere else). ...

... PREEMPT is used to allow, or not, scans to be preempted for other purposes. ... PREEMPT = EXTRA tells /schedb and VLBA operations to treat the scans as extras that can be used to help fill gaps between projects that often occur with dynamic scheduling. PREEMPT = NO tells operations not to use the Pie Town and Mauna Kea antennas at the time of the scan for daily USNO Earth Orientation Parameter (EOP) observations. ... The default, 'OK' , means that the scan be preempted and is a ``core'' scan. ...

... Many options allow to run emchain on a subset of the data, restart from previous output, change the options of constituent tasks. The exposures , instruments and ccds parameters allow to run emchain on a subset of the data files (select an explicit list of exposures, instruments or CCDs). ... This is similar to passing backgroundset to emenergy , but allows to save all such files under a different name. emchain normally ignores data obtained with CCD read-out gain set to low (/10). ...

Next: PEPSYS general photometry Up: Examples Previous: Period analysis . Let the two tables OBSERVA.tbl and OBSERVB.tbl contain two sets of observations. ... SET/CONTEXT TSA ! ... COVAR/TSA OBSERVA OBSERVA AUTOCOVA 1. ... PLOT/TAB AUTOCOVA :LAG :COVAR ! Plot autocov. function of `A' . COVAR/TSA OBSERVB OBSERVB AUTOCOVB ? ... PLOT/TAB AUTOCOVB :LAG :COVAR ! ... COVAR/TSA OBSERVA OBSERVB CROSSCOV ? ... PLOT/TAB CROSSCOV :LAG :COVAR ! Plot crosscovariance function . ... Astrophys. ...

Next: AXAF Recipes Up: ROSAT HRI Recipes Previous: Quantum Efficiency Correction (a.k.a. For some observations, a significant amount of data may have been rejected during SASS processing because the background level was higher than the calculated threshold for rejection. ... REJECTED EVENTS . ... The recipe will allow the user to include rejected events in the generation of a new qpoe file and filter on the background level. ... This creates a qpoe file with standard + rejected events. ...

... We have assumed a constant in time star formation rate and the total number of stars in the Galaxy, , to be such that the total mass of the galaxy is ; assuming the Salpeter mass function   , we get . ... This number agrees with a standard estimation of the galactic star formation rate of order of per year. In each run of calculations, we trace the evolution of binaries with initial parameters randomly distributed according to the chosen initial laws. ...

Determination of short-term proper motions of fast stars with Pulkovo Normal Astrograph. ... Khovritchev Laboratory of Astrometry and Stellar Astronomy of the Pulkovo Observatory, RAS, Saint-Petersburg Observations Normal Astrograph (D/F=33 cm/3.5m), CCD camera: S2C, FOV = 18x16 arcmin, Pixel size 900x900 mas Determination of the new proper motions of 413 LSPM stars 1 epoch : CCD-surveys and catalogs -- M2000, CMC14, 2MASS, SDSS DR7 2 epoch : CCD-observations with the ...

This diagram illustrates the normal flow of text between parent and sibling boxes. A document window is shown, with 8 lines (numbered 1 to 8), each 24px high. Four lines of text are displayed, occupying line 1 through 4. In the following PRE element, each 24 pixel line is simulated by two lines, the second beginning with the appropriate number. The lines, as they appear in the image, contain: 1 Beginning of body contents. ... 3 End of outer contents. End of body 4 contents. ...

... spectrum . ffit . ... grids . ... These commands read in a grid of model spectra. ... Values for the parameters are taken from the input models themselves, to avoid mixups. The syntax of the command arguments is precise. model{ . ... If there is only one spectrum to fit, one should set default parameters for the secondary which lie within the model grid, with <L_2/L> being a very small value. ... The output is saved in a file <file.fit> , where <file> was the name of the spectrum being fitted. ...

... FTS Introduction . ... You may miss documents, which contains word satisfies , although certainly would love to find them when search for satisfy . ... In simple phrase, tsvector is a sorted list of lexemes, so even without index support full text search should performs better than standard ~,LIKE operators. =# select 'a fat cat sat on a mat and ate a fat rat'::tsvector; tsvector ---------------------------------------------------- 'a' 'on' 'and' 'ate' 'cat' 'fat' 'mat' 'rat' 'sat' . ... tsquery . ...

Next: NEWFIRM Software--System Integration Using OPC . Up: Control System . ... 314 Astronomical Data Analysis Software and Systems XIII, eds. F. Ochsenbein, M. Allen, & D. Egret (San Francisco: ASP), 732 . ... The software written for WFCAM includes a camera control and acquisition system, a survey definition system and instrument control systems. ... The Ultracam camera control system was developed at the UKATC as part of the Ultracam high speed photometry system for the University of Sheffield. ...

Displays the current status of the Dual Imaging Spectrograph (DIS) and allows you to change the configuration. Normally only the most common status is displayed and the configuration controls are hidden. ... Pushing the "Config" button displays configuration controls (each to the right of its corresponding item of status). Select TUI:Save Window Positions to remember the state of this checkbutton. ... Turret : current position of the grating turret. ... Grating : name of the current grating. ...

... This menu contains variables which control the performance of the Marquardt-Levenberg (M-L) non-linear least squares fitting. ... F LOAT Allow calibration to float . ... Optimize step size for M-L. L AMBDA Gradient-Brute force parameter . ... Choosing the O PT. option will cause a one-time delay before starting M-L, including the loading of the interferometric data a second time as the optimization of the step size overwrites the currently loaded visibilities. ... Christian Hummel 2015-04-28 ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > Modules . ... To enable mod_dav , add the following to a container in your httpd.conf file: . ... In addition, a location for the DAV lock database must be specified in the global section of your httpd.conf file using the DavLockDB directive: . ... In order for mod_dav to manage files, it must be able to write to the directories and files under its control using the User and Group under which Apache is running. ...

The sections <Directory> , <Location> and <Files> can contain directives which only apply to specified directories, URLs or files respectively. Also htaccess files can be used inside a directory to apply directives to that directory. ... The order of merging is: . ... If multiple <Directory> sections apply to the same directory they are processed in the configuration file order. ... Using the options in question is only possible inside a <Directory> section (or a .htaccess file). ...

... Possible extracurrent spikes, collected by long power transmission lines, have to be suppressed before they enter into the core electronic. Spikes cause the premature aging of the devices with a consequent decrease of the MTBF. ... Premature aging of the devices, due to spikes collected by the power transmission lines, strongly decrease the MTBF of the devices. ... 4000 V Standard devices Stray Italy Alarm Aging Monitoring SDS-IND-DIN-M230VAC 1000 V Vin=230 V 1000 V 540 V V tresh. ...

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

... From this recent picture by the Hubble Space Telescope, astronomers have estimated its mass is just high enough for it to fuse hydrogen into helium in its core. ... The Magellanic Clouds are small irregular galaxies orbiting our own larger Milky Way spiral galaxy. ... Elliptical Galaxy M87 . ... Elliptical galaxy M87 is a type of galaxy that looks much different than our own Milky Way Galaxy. ... Long winding spiral arms are clearly evident on this spectacular picture of the spiral galaxy M83. ...

Geophysical rocket R-11A . ... Rocket R-11A has been designed to take measurements of atmospheric pressure at different altitudes from 60 to 160 km, define optical properties of upper atmospheric layers, measure concentration of positive ions, record a number of the container collisions with micrometeorites. Rocket P-11A was first launched from the Novaya Zemlya in October 1958. The rocket reached an altitude of 103 km. ... SEA LAUNCH . ... Official WEB-site of S.P.Korolev RSC Energia . ...