... The choice of exposure time generally depends on the signal-to-noise ratio required to meet the science goals. ... See "Overhead Times" on page 29 for more information about exposure timings.) ... For example, shortening an exposure from 400s to 350s has no effect on orbit packing; they both require 9 minutes to execute ( CLOCKS=NO, the default setting). On the other hand, shortening an exposure from 180s to 160s trims the execution time by 2 minutes (again CLOCKS=NO, the default setting). ...

... 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. ...

Next: NUMBER of PASSES Up: Tape Management Previous: TAPE HANDLING at SCAN Contents . Tapes for the Mark III and VLBA systems come in two nominal lengths, 9600 ft and 18000 ft. ... The following table gives the recording times per pass to expect with these tape speeds and recording rates: . RECORDING TIMES for 1 pass on VLBA and Mark III tapes. ... For Mark III, the longer tapes will hold 3.37 times as much data per pass as the shorter tapes. ...

. Please, enter light elements for your star and Julian Day interval. HJD0: . Period: . JD1: . JD2: .

Internet Sites | ... US Naval Observatory: Time Zones - Unofficial, non-authoritative information on world time zones. Day and Night - A short page listing the best live camera and animation sites about day and night on the Earth. ... An excellent time zone map. ... Harry Abrams,1997. ... Time Keeping and Culture - Nice site with links to history of time keeping with games and surveys about time in your life. ... Mesoamerican Calendars - How were ancient people calculating time? ... Time Warp | ...

... Basic time functions . ... Example 2: Set a random number seed . ... Uses of time functions include: . ... time_t time(time_t *tloc) -- returns the time since 00:00:00 GMT, Jan. 1, 1970 , measured in seconds. ... timer.c */ #include <stdio.h> #include <sys/types.h> #include <time.h> main() { int i; time_t t1,t2; (void) time(&t1); for (i=1;i<=300;++i) printf(``%d %d %d n'',i, i*i, i*i*i); (void) time(&t2); printf(`` n Time to do 300 squares and cubes= %d seconds n'', (int) t2-t1); } . ...

The HyperNews Linux KHG Discussion Pages . Forum: The Linux Kernel Hackers' Guide . Re : Need quicker timer than 100 ms in kernel-module ( Erik Thiele ) . Re : 10 ms timer patch (Reinhold J. Gerharz) . Keywords: TIMER . Date: Sat, 29 Nov 1997 15:08:26 GMT . From: Tolga Ayav < enko@raksnet.com.tr > . I am working on PC based control systems and I really need to use timer interrupt as fast as possible. I would be pleased if you could send me your patch. Thank you.

Next: The hardware and software Up: Keeping Time Previous: Keeping Time . ... Since the Earth is round, noon happens at different times in different places. This leads to the concept of local time . ... As soon as you need to communicate with distant places, you'll notice the need for a common time. ... Each local time is called a time zone. ... Other countries do not do this. ... In the US and some other countries, the local time zones have a name and a three letter abbreviation. ...

ntpdate [ -bBdosu ] [ -a key ] [ -e authdelay ] [ -k keyfile ] [ -o version ] [ -p samples ] [ -t timeout ] server [ ... ] . ntpdate sets the local date and time by polling the Network Time Protocol (NTP) server(s) given as the server arguments to determine the correct time. ... A number of samples are obtained from each of the servers specified and a subset of the NTP clock filter and selection algorithms are applied to select the best of these. ... The default is /etc/ntp.keys . ...

... 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. ...

... the 300 Mhz detected band versus time (.ps) ( .pdf ) . The aerostat is a tethered balloon radar that flies above lajas puerto and is used for drug interdiction ( more info ). ... The control room front panel outputs were passed thru attenuators (pix2a 15db, pix2b 0b) and then the 300 Mhz band was detected with a 20 usecond time constant. ... This data set includes all the radars in the 300 Mhz band. ... The plots show the 300 Mhz detected band versus time (.ps) ( .pdf ) : . ...

... Timer functions can be used to time operations (e.g., to see how much time has elapsed). ... You can then use g_timer_start() to start timing an operation, g_timer_stop() to stop timing an operation, and g_timer_elapsed() to determine the elapsed time. GTimer *g_timer_new( void ); void g_timer_destroy( GTimer *timer ); void g_timer_start( GTimer *timer ); void g_timer_stop( GTimer *timer ); void g_timer_reset( GTimer *timer ); gdouble g_timer_elapsed( GTimer *timer, gulong *microseconds ); . ...

Blackholes Forum Message . Forums: . ... There Is Not Enough Time To See Inside . ... Time essentially goes to infinity at the event horizon. That is, we can see light coming from any point outside of the event horizon, that is assuming we are being illuminated from that point. ... That's why we cannot see inside the event horizon. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Show Times . ... Please select the appropriate show programme either 'term time' or 'school holiday' period. ... For more information on new events please visit the Armagh Planetarium Events Blog . ... Due to the darkness and sound levels children under six years old are only permitted to shows appropriate to this age range. Check the shows now playing page to find out what shows are suitable for young children. ... Armagh Planetarium reserves the right to change the show programme without notice. ...

... 12, 2015 Abell 3744 MAC 2106-2521 Sep 17 2009 31 Cap Cap Cap Cap Cap Cap Galaxy Galaxy Galaxy Galaxy Galaxy Galaxy 17mmT4 EF,VS, PATCH ,AV ONLY A FEW TIMES AFTER SEVERAL MINUTES, AGC 3744 ,R=P MAC 2106-2524 Sep 16 2009 31 17mmT4 VF,VS, PATCH ,UB, NND , AGC 3744 ,R=P MAC 2106-2527 Sep 16 ...

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Средства временной привязки (тайминга) РСДБ-наблюдений решают свою задачу с помощью местных часов, GPS/ГЛОНАСС-приемника и время-интервального счетчика, измеряющего указанный выше интервал времени следующим образом. ... Приемник реализует шкалу времени UTC с точностью 100 нс; . ... Показания времени синхронометра Ч7-37 в операторской сверяются с показаниями синхронометра Ч7-37 в эталонной, показаниями выбранной опорной шкалы времени на мониторе компьютера "Time". ...

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... Class . ... PREV CLASS NEXT CLASS . FRAMES NO FRAMES All Classes . ... FIELD | CONSTR | METHOD . DETAIL: FIELD | ... java.lang.Object ij.plugin.Timer . ... public class Timer . ... ImageJ plugin for measuring the speed of various Java operations. ... This method is called when the plugin is loaded. Methods inherited from class java.lang.Object . ... This method is called when the plugin is loaded. 'arg', which may be blank, is the argument specified for this plugin in IJ_Props.txt. ...