Basic Control Law . gyros . ... FGSs . ... HST has 6 gyros, 2 per package in 3 packages (RGAs). ... measured position data from FGSs or FHSTs ("observer data") . ... FGS control is partly internal to the FGS, partly done by the DF224 flight software . ... Stops using FGS data in control law . ... The maneuvers can be executed either under gyro control or with FGSs active . ... When implemented, will use one FGS for v2-v3 control and a combination of FHST and gyro data for roll control . ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

... Computing the pointing error . ... The platform can be rotated by pulling on the tie downs or redistributing weight on the platform. ... The horn rotates through the same angle as the platform. ... The plots show the computed pointing error for different platform rotation angles (.ps) ( .pdf ): . This shows the pointing error in as you tilt the platform. ... B2209+080 has the pointing errors with no tilt. ... The computed pointing error for a platform tilt track the measured errors pretty well. ...

... fork() . ... A process is basically a single running program. ... System is prototyped in <stdlib.h> . ... Each command and sorresponding arguments are put in a args array */ /* execvp is called to execute these commands in child process */ /* spawned by fork () */ /* cc -o fork fork .c */ #include stdio.h #include sys/types.h #include unistd.h main() { char buf [1024]; char * args [64]; for (;;) { /* * Prompt for and read a command. */ printf( Command: ); if (gets( ...

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... 2/3-m Telescope . ... Site . ... Commanding . ... In a typical robotic observing scenario, each afternoon, a telescope control computer obtains a set of objects to observe from its home institution from a command or script file. ... The file is then transferred to the telescope control computer at the Winer Observatory in Sonoita. ... The Iowa control computer then begins processing the telrun.sls file. ... 2013 Winer Observatory. ...

These routines are meant to provide high level definition and processing of command lines. ... Create a control panel object. panel_create_group . Create a panel to contain a group. panel_add_item . ... Pop last pushed control panel object from control panel stack. panel_process_command_with_stack . ... Register a function to be called when a panel item changes. panel_PROTO_decode_func . ... This routine will create a control panel object which is a container for a group of items. ... flag . ...

XPA supports host-based access control for each XPA access point. You can enable/disable access control using the XPA_ACL environment variable. ... See XPA Access Points and Templates for more information about xpa templates. ... For example: xpaset -p xpa1 -acl "somehost -" will turn off all access control for somehost to the xpa1 access point, while: xpaset -p XPA:xpa1 -acl "beberly gs" will give beberly xpaget and xpaset access to the access point whose class is XPA and whose name is xpa1. ...

Pulkovo NEO Page . Central Astronomical Observatory at Pulkovo . ... NEA Accuracy Estimation . Positions of the asteroids that have been sent by observers to the Minor Planet Center are automatically processed by means of calculation of (O-C) values with the help of the EPOS software package created at Pulkovo Observatory. ... Here attention is paid to observations of the near-Earth asteroids. This work was initiated by Dr. O.Bykov at Pulkovo Astronomical Observatory. ...

... The first of the equations defines the position of the spectral orders, m , in the raw image, while the second equation gives, for each order, the dispersion relation in one dimension. ... where the coefficients are computed using least squares techniques on a grid , i.e. sample number and line number of points located within the spectral orders of the image. These points in the grid are found automatically by an order--following algorithm, normally using the FLAT or STD image. ...

... Up: Science Data Pipelines . ... We designed and developed a package which simulates extragalactic point source data within a given field of view and SIRTF band. ... The simulator is modular and extensible to enable multi-wavelength simulations, has been optimized by utilizing parallel processing capabilities, and will be used to test pipeline software. ... The extragalactic simulator is capable of generating large numbers of galaxies within a given patch of sky for SIRTF pipeline testing. ...

... The following tools are available: 3.1 strbs: Star Tracker BoreSight calculation  SYNOPSIS strbs instrument = instr ra= ra dec = dec apos = apos odffixout= true |false bstoolsout= true |false  DESCRIPTION Given the prime instrument instr and its viewing direction in terms of Right Ascension and Declination of the boresight + astronomical ... REFERENCE See task epicbscalgen and cal documentation for de nition of boresight related coordinate frames. ...

... Classes . ... TelescopeTCP Class Reference . This TelescopeClient class can controll a telescope by communicating to a server process ("telescope server") via the "Stellarium telescope control protocol" over TCP/IP. ... TelescopeTCP (const QString &name, const QString &params, Equinox eq=EquinoxJ2000) . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getEquinoxEquatorialPos (const StelCore *core) const . ... getJ2000GalacticPos (const StelCore *core) const . ...

... Positions in 2000 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2001 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2002 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2003 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2004 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . ...

OptInt PmWiki . MROI Fast Tip Tilt / . Tech Meet 8 . ... Page History | ... MROI Delay Line Design Contract . ... Design Documentation . ... MROI DL Design Contract Private Material . ... Return to Tech Meet 8 ( Edit ) . ... Prefer to use floating point calculations for centroiding and servo . EBS to find out if this means we must use Xenomai user-space real-time and hence tolerate context switches . ... Frame acquisition and data processing should be a real-time task in *all* modes . ...

Download Izmccd (~2.7 MB). ... a) a choice of the best mode of measurements of stars and objects ("Properties/Measurement"), . b) a choice of reference stars. ... 1) necessity of presence on an image of a plenty of stars (we recommend to apply this mode, if on the frame of reference stars is more 100) . ... Sx and Sy depend from residuals at all reference stars (reference stars are marked by blue color). ... These residuals are the image of the star a minus function of a profile for each pixel. ...

INFRARED FOURIER-SPECTROMETER SICH-F . ... Instrument work regimes: 1) Inside. 2) Calibration at inside standard sources 2 - 4 times per a rotation. 3) Calibration at "free space" 2 - 4 times per a rotation. 4) Infrared radiation measuring 10 - 40 min. per a rotation. ... Spectrometer consists of the photodetector block and the block of signal processing and control. ... Diagnostic information and attach data will transfer by state telemetric channels. ... Detector temperature. ...

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...