... The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ... Information on the NTP architecture, protocol and algorithms can be found in the Further Information and Bibliography page. The Building and Installing the Distribution page presents an overview of the procedures for compiling the distribution and installing it on a typical client or server. ...

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• ntpdate - set the date and time via NTP
• Time and Time Interval Measurement with Application to Computer and Network
• xntpd - Network Time Protocol (NTP) daemon

The Radar Timing Generator (RTG) generates timing pulses that are used to trigger the RI A/D system. ... Sample rate 10Mhz/n n=1...128 (see manual for actual slowest rate) . ... can be driven by a fixed or drifted 20 Mhz clock . Talks to the outside world via the 5 Mhz SBP (ShouldhaveBeen Parallel) interface. This interface is driven by a vme bus card. Radar Timing Generator Instruction Manual, Hagen,Torres (1990). Manual No. ... Ch 1-7 General information (.pdf) . ...

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• GALFA Documentation
• Alfa_ang - IDL procedure for calculating the optimum rotation angle for ALFA
• fmset

... PISTON piston . ... this command is not used by the TCC The guide camera mechanical controller sets the filter, focus and other mechanical functions, but not the position of the guide camera in the focal plane. Positioning, if available, is handled by one or two guider position axes controllers , one per axis of motion. ... Notifies the controller that subsequent commands apply to the guider mechanical controller. ... Sets the piston of the guider to the specified value (in decimal microns). ...

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• lsst.tcc: tcc.util.time Namespace Reference
• Secondary Commands
• Agile Procedures

... Classes . ... casa::Timer . ... user () const . ... Get the user+system time (in seconds) since last "mark()". double . ... Get the user+system time (in seconds) since last "mark()". double casa::Timer::all_usec . ... Get the user+system time (in microseconds) since last "mark()". void casa::Timer::mark . ... Show real, user, system time (in seconds) on cout or a user supplied stream. double casa::Timer::system . ... Get the system time (in microseconds) since last "mark()". double casa::Timer::user...

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• casacore: casa::PrecTimer Class Reference
• Australia Telescope Time Assignment Committee
• VLBI Wiki | LBAMay2010 / Vt14aAkLog

... HST . NICMOS Camera 2 ACQ Exposure Times . ... HST Overview . ... NICMOS Camera 2 ACQ exposure times . ... The NICMOS ACQ ACCUM exposure times are quantized and the minimum NICMOS ACQ exposure time is different from the ACCUM mode. For example: T_acq = TPG_TIME + 0.228 sec . ... The OPUS header NICMOS ACQ ACCUM exposure times can be corrected by subtracting 0.37 seconds from the exptime keyword value. ... Phase II times are round down to make them correct NICMOS ACQ ACCUM exposure times. ...

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• Documentation Time
• Director's Discretionary Time Submission
• GPI Data Formats GPI Data Pipeline 1.0 documentation

... The predictive power of current models (the so-called meteor forecasting) has given us the exact timing of the Leonid storms of 2001 and 2002 to the nearest hour and are now used to predict the arrival times of major annual showers such as the Perseids . ... Towards this goal, the Observatory has installed a sky-monitoring system, consisting of one medium angle (MA) and two wide-angle (WA) video cameras linked to software designed to detect motion. ... Bright Taurid Meteor . ... Meteors on Mars . ...

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• Showing and setting time
• Time zones
• Observing times | International Year of Astronomy in Ireland | Astronomy 2009

... First of all, I should say that you cannot guarantee user-mode processes to have exact control of timing because of the multi-tasking nature of Linux. ... However, for most applications using I/O ports, this does not really matter. To minimise this, you may want to nice your process to a high-priority value (see the nice(2) manual page) or use real-time scheduling (see below). ... Linux 2.x kernels have soft real time support; see the manual page for sched_setscheduler(2) for details. ...

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• Time Functions
• comedi_get_timer
• comedi_timed_1chan

... Science . ... Science Users Information > Observing with ESO Telescopes > Policies and Procedures > Director's Discretionary Time . ... Phase 1 Proposals . ... Up to 5% of the available general observing time may be used for Director's Discretionary Time Proposals (DDTs). ... proposals of a somewhat risky nature requesting a small amount of observing time to test the feasibility of a programme. ... Normally DDT proposals will be reviewed by the Director's Discretionary Time Committee (DDTC). ...

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• ESO - Guaranteed Time Observations
• ESO - Real Time Control for Adaptive Optics Workshop
• ESO - How do I interpret the SEQ TIME keyword values?

... 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 . ...

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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 | ...

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• Five-Minute-Task Time Estimate Worksheet
• Lynxx Time Sheet
• Five-Minute-Task Time Estimate Worksheet - SAMPLE

... Following a micrometeoritic impact in Rev.#961 (March 2005), a new hot column appeared, whose effects leak across the whole column RAWX=318 . While a correction for this hot column is possible and implemented for MOS1 exposures taken in Imaging Mode, the offset value in MOS1 exposures taken in Timing Mode is too high for any meaningful correction to be possible. ... mos1.evt is the name of the MOS1 event list . ... RAWX in [320:329])" . ... Calculate the effective area due to the excised columns . ...

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• Out-of-time events
• XMM-Newton SAS: Watchout Page
• Soft flare rejection for fast timing mode data

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

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... AstroGrid Registry . AstroGrid . 1.Home . 2.Admin Home . ... 1.Submit new resource . 2.Low Level(XML) Submit Resource . ... 3.Get/Find New Registries . 4.Manage New Authority . 5.Remove Resource . ... 7.Resource(s) Status Change . ... 9.Admin Home (Other Tasks) . ... 8.Resource Help . ...

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• Timers
• Time series analysis in the frequency domain
• Untitled Document

... Keywords: timer . ... I've been playing around with the add_timer and del_timer functions and can't seem to get it to work. Say if I want to execute a IRQ routine using a 10sec timer for 10 times, only the first time there is a 10 sec delay, but subsiquent interrupts are simultaneous. static struct timer_list timer = { NULL, NULL, INTERVAL, 0L, &irq }; . main() { add_timer(&timer); } . irq() { del_timer(&timer); timer.expires = INTERVAL; add_timer(&timer); printk(KERN_DEBUG "Hello." ...

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• rotatelogs - Piped logging program to rotate Apache logs - Apache HTTP Server
• Timers Work...
• add_timer function errata

... We have been upgrading the software front-end to WASP (Wideband Autocorrelating SPectrometer, operating from 800 to 4000 MHz) from Lynx-OS to Real-Time Linux and will discuss Real-Time software aspects. We are using a standard parallel ``PIO'' card to receive data from the spectrometer and standard GPIB interfaces that drive a frequency synthesizer for bandpass calibration. WASP and its front-end computer are fully mobile and can be taken to any suitable radio telescope. ...

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• A Spectroscopy Exposure Time Calculator for IRAF
• A New Stable Method for Long-Time Integration in an N-Body Problem
• Real Time Linux -- The RTOS for Astronomy?

OptInt PmWiki . ... Tech Meet 12 . ... Page History | ... MROI Delay Line Design Contract . ... Interface Control . ... Return to Tech Meet 12 ( Edit ) . ... ISS Data Collector probably not suitable as LocalDataCollector and unlikely to be ready in time . ... ISS Data Collector probably not suitable as LocalDataCollector (e.g. issues with retrieval of recorded data), and unlikely to be ready in time . ... TempController has interface to ISS . ... TempController (EnvController?) has interface to ISS . ...

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• OptInt PmWiki : Design Documentation | History
• OptInt PmWiki : Tech Meet 8 | History
• OptInt PmWiki : Page File Format

... Exposure Time Calculator (ETC) . ... Microstep (pattern) - a pattern of exposures at positions each shifted by a very small movement (<3 arcsec) from the reference position. ... A microstep pattern can be contained within each position of a jitter pattern. Jitter (pattern) - a pattern of exposures at positions each shifted by a small movement (<30 arcsec) from the reference position. ... Making a tile: Ysteps ; . ... Resulting Exposure time map for a filled tile of 6 pawprints (no jittering). ...

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• VISTA ETC - Exposure Time Calculator
• VISTA Integration Time DIT Recommendations
• VISTA - Images of Camera

... Classes . ... gTime Class Reference . This class implements time calculations. ... gTime (double ai_jDays=0) . ... gTime (const gTime &timeSrc) . ... Set the time value of the time object to the julian day of year, day. ... operator= (const gTime &timeSrc) . ... Returns the time GMT value in Julian days. ... Returns the time_t value of the gTime Object. ... Returns a gTime object setted with the actual machine time. ... gTime Object assigned with real machine time. double gTime::getGmtTm . ...

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• Time zones. Блог о часовых поясах России и мира
• Stellarium: StelLocaleMgr Class Reference

. To execute a command at a specific time use the at command. See the manual page for more details. Commands can be scheduled to execute at regular intervals using the crontab command, which submits crontab job files for execution by the cron daemon . See the manual page for further details.

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... 6-50, 8-00, 8-40, 9-20, 9-45, 10-05, 10-20, 10-25, 10-38, 11-00, 11-35, 11-50, 11-55, 12-25, 13-00, 13-30, 13-55, 14-15, 14-45, 15-25, 15-35, 16-00, 16-45, 17-15, 17-45, 18-50 . ... Ispravnaya: 6-10, 8-45, 12-00, 13-20, 16-45, 18-30 . ... Nalchik: 6-12, 8-00, 9-29, 11-15, 11-31, 11-50, 12-00, 12-38, 13-00, 13-15, 13-41, 14-50, 15-45, 16-08, 16-35, 17-00, 17-30, 18-30, 18-35, 18-52, 18-55, 19-35, 21-00, 23-00 . ... Vladikavkaz: 9-29, 12-00, 13-00, 14-50, 15-45, 17-30, 18-30, 23-00 . ...

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• Bus timetable from Zelenchuk and back, 2011