... The exact directions of the offsets are parallel to the rows and columns of the CCD on which the aperture is specified. ... It is often useful to explicitly specify the desired rotation of the WFPC2 field-of-view on the sky. ... Figure 7.8 shows the CCD orientation and aperture locations relative to the U3 axis. ... Obtain the Position Angle (PA) of the source axis on the sky, measured in the standard way, North through East. ... desired source angle in field-of-view measured CW from +U3 axis) . ...

lsst.coordConv љ unknown . ... Classes . ... coordConv::PVTCoord Class Reference . ... PVTCoord ( Coord const &coord, Eigen::Vector3d const &vel, double tai) . PVTCoord ( Coord const &coord0, Coord const &coord1, double tai, double deltaT) . PVTCoord ( PVT const &equatPVT, PVT const &polarPVT, PVT const &distPVT= PVT ()) . PVTCoord ( PVT const &equatPVT, PVT const &polarPVT, PVT const &distPVT, double equatPM, double polarPM, double radVel) . ... Definition at line 13 of file pvtCoord.h . ...

... Classes . ... Class List . ... casa . casa::SolarPos . ... Solar position class and calculations. ... SolarPos (const SolarPos &other) . ... operator() ( Double epoch) . ... Barycentric position of Earth. const MVPosition & casa::SolarPos::baryEarthDerivative . ... Barycentric position of Sun. const MVPosition & casa::SolarPos::barySunDerivative . ... Double casa::SolarPos::checkEpoch [private] . ... Double casa::SolarPos::checkSunEpoch [private] . ... Double casa::SolarPos::deval [3] [private] . ...

Stellarium 0.12.3 . ... Classes . ... FileљStructure . ... ClassљIndex . ... StelIndexBuffer Class Reference abstract . Generic index buffer interface usable with all Renderer backends. ... virtualљ . ... voidљ . addIndex (const uint index) . ... virtual voidљ . ... index . ... virtual void StelIndexBuffer::addIndex_ . ... virtual void StelIndexBuffer::clear_ . ... virtual void StelIndexBuffer::lock_ . ... virtual void StelIndexBuffer::setIndex_ . ... virtual void StelIndexBuffer::unlock_ . ...

Computer Ephemeris. Ephemeris for physical observations of the planets. Explanations. Each row of the table contains for date specified at 0h of Time Terrestrial Dynamical: . ... position angle of axis of planetary rotation (degrees) - 'P', . ... illumanated part of the disk - k, . ... position angle of disk point with minimal illumination (degrees), . longitude of central meridian of the disk (degrees) - 'merid1' - system I and so... phase correction (degrees). ...

Region markers can be moved, resized, rotated, zoomed, deleted, and can change geometric type. ... For example, markers placed on astronomical catalog positions should be fixed so that one cannot accidentally move them off the specified position. ... Parameters can be fixed using the fix option of the regions public access point (for fixing classes of markers) or by means of a fix keyword in the definition of an externally loaded marker. ... In the command: echo "regions fix all -position -size" | ...

Compilation of celestial positions . HyperLeda home | Documentation | Search by name | Search near a position | ... SQL Search | Search the position measurements for an object . B1950 Celestial position . ... precision about 0.1 arcsec . ... 1 arcsec . ... 100 arcsec (1 arcmin) . ... 1000 arcsec (10 arcmin) . ... HyperLeda . ...

... srcinfov strra=<ra> strdec=<dec> apos=<apos> withsrccoord=true|false . ... srcinfov computes for each instrument the position of a given celestial source in the field of view (in TELCOORD coordinates). Input is the satellite attitude in terms of Right Ascension/Declination of the star tracker viewing direction and astronomical position angle [deg]. ...

Modules | ... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > Developer Documentation . ... This is a first attempt at writing the lessons I learned when trying to convert the mod_mmap_static module to Apache 2.0. ... create per-server config structures */ . ... merge per-server config structures */ . ... Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our mailing lists . ...

... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...

This WWW form allows the user simplified access to images produced by the NRAO/VLA Sky Survey (NVSS). This service determines which NVSS image is desired based on a celestial position and returns either the image directly or a Web page with a link to the file. ... The NVSS Postage stamp (small FITS file) server can be used to obtain images with other geometries.) ... Web browsers use external viewers to display files like FITS images which they do not understand. ...

... readmodel , file _char Read a model file. calcmodel Compute the model data for data sets with non-zero weight. modelchisq () Function. Return reduced of currently loaded data wrt model. binarypos ([ epoch _real [, component _char ]][, lambda = lambda ][, com = com ][, abs = abs ]) Function. ... Use today if no epoch is specified, and use the top hierarchical component if no component is specified. ... Examples: PRINT,MODELK(' A'), PRINT,MODELK(' AB'). modelpx ( component _char ) Function. ...

... SGML . The text/html content type . In this section, we begin the specification of HTML 4.0, starting with the contract between authors, documents, users, and user agents. ... These recommendations are not normative and conformance with this specification does not depend on their realization. ... An HTML document is an SGML document that meets the constraints of this specification. ... A user is a person who interacts with a user agent to view, hear, or otherwise use a rendered HTML document. ...

... Choose one of the following projections (The E or C after projection names stands for Equal-Area and Conformal, respectively): CYLINDRICAL PROJECTIONS: -Jc lon0 / lat0 / scale or -JC lon0 / lat0 / width (Cassini) Give projection center and scale (1:xxxx or inch/degree). ... Jm lon0 / lat0 / scale or -JM lon0 / lat0 / width Give central meridian, standard latitude and scale along parallel (1:xxxx or inch/degree). ... Give scale along oblique equator (1:xxxx or inch/degree). ...

... The DD tag element specifies a term definition, and follows one or more DT elements. ... CLASS . ... The CLASS attribute is most commonly used to attach a different style to some element, but it is recommended that where practical class names should be picked on the basis of the element's semantics, as this will permit other uses, such as restricting search through documents by matching on element class names. ... CLEAR . ... The CLEAR attribute allows you to move down unconditionally: . ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

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 following articles and reports, which are available online . Mills, D.L. Internet time synchronization: the Network Time Protocol. ... Mills, D.L. Network Time Protocol (Version 3) specification, implementation and analysis. ...

... Restrictions ) are used. If specified form of output is EMP then astrometric equatorial coordinates are printed in the form usual for Ephemerides of Minor Planets, with formal precision of 0.01 minute of time in R.A. and 0.1 minute of arc in declination. ... It should be noted that the near-opposition ephemerides are not calculated for bodies/ points with numbers from –12 to 0 (in case they are included into task for computation of such ephemerides only their names are displayed in the results). ...

In Actor Prolog a resident is a special mechanism that helps processes to inspect state of other processes. A resident observes the state of a specified (target) process and if the state of the process changes (for instance, after message handling) it proves a specified predicate of the process. ... Work of the resident. ... Any change of the list of target processes or arguments of resident function results in activation of the resident and repeated collection of information in the target worlds. ...