... Science Users Information > Observing Facilities > La Silla Facilities > La Silla Science Operations . ... La Silla News . ... Internal Pages . La Silla Science Operations Department (LSO) is part of the La Silla Paranal Observatory and is in charge of the operations of the telescopes on La Silla. ... In the La Silla Science Operation pages, you should find all the information you need for your observations from the time you have an idea of observations until when you finish processing your data. ...

Duty astronomers at the Compact Array are rostered from ATNF staff and students to provide support to observers at Narrabri for periods of one week at a time. The duty astronomers are required to assist observers prepare observing schedules, help set up the Compact Array at the start of an observing run, diagnose and attempt to solve problems that arise in the course of the observations and help observers with the initial analysis of their data. ... www.atnf.csiro.au/observers/tidbinbilla . ...

Peremennye Zvezdy ( Variable Stars ) 26 , No. ... Moscow 119992, Russia . ... 84/32, Moscow 117997, Russia . ... Our CCD observations compared to times of minima derived from the archival photographic plates and from the NSVS and ASAS-3 data clearly show that the orbital period of the system is variable. ... The phased light curve for the light elements . ... CCD, Moscow . ... and for the current linear light elements (in excellent agreement with the NSVS, ASAS, and our CCD observations): . ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

... HST . Changes to Recommended Buffer Time for COS TIME-TAG observations . ... Data . ... HST Overview . ... APT requires the observer to specify the BUFFER-TIME parameter for all COS TIME-TAG observations in order to effectively manage the onboard memory. ... This allows COS to tailor the length of the planned buffer dumps to better match the amount of data collected. For some observing scenarios, these changes will allow shorter buffer dumps, and thus more observing time per orbit. ...

If you have questions, need help, want to point out errors in this page, suggest improvements or give constructive criticisms regarding the observing system and this website, call Paulo Freire . Why CIMA? ... CIMA has become the default observing mode for pulsar observations at the Arecibo Observatory . ... The 4 Wideband Arecibo Pulsar Processors (WAPPs) have become the default back-ends for pulsar observations at the Arecibo Observatory. ... CIMA / WAPP observing page now available. ...

XMM­Newton CCF Release Note XMM­CCF­REL­274 OM Photometry. Time dependent sensitivity degradation correction: updating the coe#cients A. Talavera May 12, 2011 1 CCF components Name of CCF VALDATE List of Blocks changed CAL VERSION XSCS flag OM PHOTTONAT 0005 2000­01­01T00:00:00 DEGRADATION No 2 Changes The table extension ``DEGRADATION'' was introduced in 2006 to contain the coe#cients of the time dependent sensitivity degradation correction. ... Table 1 gives both old and new coe#cients. ...

... the time of observation . ... Observing the Changing Position of the Sun To Establish Cardinal Directions . ... Observations of the Sun's apparent movement across the sky and its pattern of rising and setting in the east and west horizon helped to establish the cardinal directions. ... The final stage of the Sun's return was marked by the observation that the Sun had reached its highest altitude when the full width of your mitted hand could fill the gap between the Sun and the horizon. ...

... The J, H and K bands are characterized by a bright background, such a background is mainly due to the emission of atmospheric lines and of thermal radiation. ... If the source cover a large fraction of the slit, spectra off-source must be observed to adequately sample the sky background. ... The on chip integration time (time spent in each position of the slit) must not exceed 40 seconds in J and H bands and 60 seconds in K band. ... We suggest a sequence of 10 for each elementary integration time. ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 . ... In order to assist folks upgrading, we maintain a document describing information critical to existing Apache users. ... This document describes only the changes from 2.0 to 2.2. ... Your existing version 2.0 config files and startup scripts can usually be used unchanged in version 2.2. ... Many third-party modules designed for version 2.0 will work unchanged with the Apache HTTP Server version 2.2. ...

... Does the time it takes different methods to create all the elements coincide with the universeт??s accepted age? ... Illinois Urbana-Champaign) Different kinds of stars create elements at different rates, all of which are consistent with the age of the universe. Get instant access to subscriber content on Astronomy.com! ... Registration is FREE and takes only a few seconds to complete. If you are already registered on Astronomy.com, please log in below. ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

... Actual stars are expected to be more complicated than these simulations. ... The spot may be entirely visible most of the time (one would observe a prolonged flux minimum low), and then part of it may disappear over the horizon briefly and then return (slow rise and then fall back to constant level). ... With the set of observations taken here, I have information available from several comparison stars and color information. ... The period found must be consistent with the data from any given night....

... The process of proposing for Hubble Space Telescope observing time has been revised, to make it simpler for proposers. We describe the simple, flexible, and robust prototype system created to handle proposal submission. ... Proposing for Hubble Space Telescope ( HST ) observing time proceeds in two phases: the scientific merits of the proposal are considered in Phase I; only accepted proposals enter Phase II, where the observations are described in complete detail. ...

... Return to the Kernel page . ... Kernel . ... This article is part of the LWN Porting Drivers to 2.6 series . One might be tempted to think that the basic task of keeping track of the time would not change that much from one kernel to the next. ... One change which shouldn't be problematic for most code is the change in the internal clock rate on the x86 architecture. In previous kernels, HZ was 100; in 2.6 it has been bumped up to 1000. ... Driver porting: Timekeeping changes . ...

OptInt PmWiki : Pm Wiki / Mail Posts . ... The mailposts.php script allows a site administrator to configure PmWiki to send email messages whenever pages are changed on the wiki site. ... php if (!defined('PmWiki')) exit(); $EnableMailPosts=1; # to enable mailposts $MailPostsTo="somebody@example.com"; # where to send mail $MailPostsDelay=1800; # wait 30+ min after initial post $MailPostsSquelch=7200; # require 2+ hours between mails . ... MailPostsDelay = 360; # send mail 6+ min after first post . ...

... Master . Master net Homepage . ... MASTER-Amur . ... Amb: . Dust: . ... Direct . 23s . ... 45s . ... observed area: . best limit: . Cameras . ... MASTER-Tunka . ... MASTER-Ural . master.kourovka.ru . ... MASTER-Kislovodsk . ... MASTER-Crimea . ... MASTER-SAAO . ... MASTER-IAC . ... MASTER-Argentina . master.sai.msu.ru:8080 . master.sai.msu.ru . ...

... Want to observe? ... TO IMPACT OF THE PLANET TO THE EARTH ANGLE OF THE PLANET OF THE SUN YR MT DAY H M S S IN RJ " H M S DEG ' " AU HR DEG DEG DEG DEG 2009 7 24 0 16 46. 1 ECL 2 P 0.367 294 6.3 0.496 21 49 34.53 -14 14 7.5 4.099283 -1.865 -28.5 17.4 176.0 -15.7 2009 7 24 1 15 9. 1 OCC 2 P 0.214 446 5.8 0.525 21 49 33.49 -14 14 13.3 4.099023 -0.889 -13.8 20.5 -169.8 -15.2 2009 8 12 1 54 2. ... International Year of Astronomy, Ireland National Node . ...

ARCSAT Call for Proposals for Shared-Risk Observing during May-Sept 2014 Suzanne Hawley, Director and Mark Klaene, Site Manager April 18, 2014 Updated June 14, 2014 We are happy to announce that the ARCSAT upgrade project led by APO engineers Joe Huehnerhoff and Bill Ketzeback is nearly complete. ... ARCSAT proposals will be accepted as text files using the ARCSAT proposal form (available from the website) which is similar to the 3.5m proposal form. ... Remember, the time is shared-risk! ...

... 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. ...