... On the other hand, the absolute astrometry that can be obtained from WFPC2 images is limited by the positions of the guide stars, usually known to about 0."5 rms in each coordinate, and by the transformation between the FGS and the WFPC2, which introduces errors of order of 0."1 (see Instrument Science Report OSG-006). ... The recommended way to convert pixel coordinates into relative coordinates is to use the task metric , which can handle both WF/PC and WFPC2 images. ...

... 00001 //# SolarPos.h: Solar position class 00002 //# Copyright (C) 1995,1996,1997,1998 00003 //# Associated Universities, Inc. ... 00081 // The following details can be set with the 00082 // <linkto class=Aipsrc>Aipsrc</linkto> mechanism: 00083 // <ul> 00084 // <li> measures.solarpos.d_interval: approximation interval as time 00085 // (fraction of days is default unit) over which linear approximation 00086 // is used 00087 // <li> measures.solarpos.b_usejpl: use the JPL database for solar position. ...

... An OBJECT column gives the name of the object observed (usually a star name). ... In critical cases, it is common practice to measure sky on two or more positions around a target object, and these positions must be identified. ... A general treatment of this problem requires a column called OBJECT, bearing the usual name of the object (as in the star tables); a column labelled STARSKY, to distinguish between star+sky, star alone, or sky alone; and additional columns to identify the sky position. ...

... connection points . ... The point P3 is the connection between the horizontal and vertical actuators and is the axis of rotation for the tail gunner motion. processing: survey/020204/reduc We can compute P3,P5 (the moveable points) in dome centerline coordinates if we have the actuator distances and we know the positions of the above connection points in dome centerline coordinates for a given position of the tertiary (say the nominal focus position).(see actuator distances to dome centerline ). ...

Next: *.imh and *.qp Extensions Up: IRAF/PROS Files Previous: IRAF Image Arrays . The x-ray data are stored in QPOE files (Quick Position-Ordered Events, *.qp ) rather than image arrays. ... Note that, unlike IRAF images, QPOE files have no associated header file, and are always stored in the current directory, unless explicitly specified otherwise. Non-PROS IRAF tasks can also access QPOE data files in place of image arrays. ... rp110590.qp[pi=2:30] . ... The ROSAT PSPC qp file images are . ...

... Boresight routine then calculates pixel positions and adjusts boresight to the minimum moment. ... Pictures Boresight of other instruments and OM OM boresight compared with startracker boresight Field Rev Prime No. objects Intended boresight (from POS, or commissioning plan) Measured boresight (from boresight .pro) AHF boresight (from AHF file) Coords of startracker pointing moment (distance) [ moment (distance) = mean of calc. position ­ measured detector ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

Set the display of the status bar, tool bar, locator bar, and properties associated with the display of the pointer position in the Locator bar. ... Set fixed point . ... When the fixed point is set, and the display format is (DX, DY), (DIST), or (R, Theta) then give the location relative to the fixed point. ... Set the fixed point to (0.0, 0.0). ... DX, DY] Display the delta in X and Y of the position of the mouse relative to the fixed point, or (0, 0) if no fixed point has been selected. ...

I/146 Positions and Proper Motions (Roeser+ 1988) ================================================================================ Catalogue of Positions and Proper Motions Roeser S., Bastian U. =1988A .. ... 449R ================================================================================ ADC_Keywords: Positional data; Proper motions Description: PPM North gives J2000 positions and proper motions of 181,731 stars north of -2.5 degrees declination. ... The mean epoch is near 1931. ...

The following parameters as a function of the universal time are enclosed in this file. 1. no . ... Universal time date (YYYYMMDD) . ... Universal time (.hhmmss) . ... Geomagnetic local time in the satellite position . ... geomagnetic latitude . ... co-ordinate - . ... system . ... co-ordinate system . ... Solar-ecliptic co-ordinate - . ... Satellite velocity . ...

Armagh Observatory, 16 January 2002: . Apostolos Christou and John McFarland have made the first detection, from anywhere in Ireland, of the shadow cast by a star of an asteroid as it passed over Armagh. Such events, known as asteroidal occultations, allow a precise fix to be made on the asteroid's position in space, and also an estimate of its size and shape. ... Asteroids are mostly small, rocky objects, lying hundreds of millions of miles from the Earth between Mars and Jupiter. ...

... The processing of these associated images presents new challenges to the HST data processing pipelines, which heretofore operated only on single images. ... Stage 1 (CALNICA) calibrates individual exposures without information from other members of the association. ... Stage 2 of calibration (CALNICB) only operates on associated images that have previously gone through CALNICA processing, and creates combined images for each distinct (non-overlapping) pointing within the association. ...

... The CAPTION element is used to label a table or figure. Use the align attribute to specify the position of the caption relative to the table/figure. ... 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. ... ALIGN . ...

asnphot -- plot magnitude as function of subpixel position asnphot association . ... calnicb style association input file with list of images to be processed and co-added. istar . star to be used for the photometry. ... Calls "qphot" to perform photometry on the same star in each image of an association. ... The task requires that "alignasn" has been run on the association in order to define the stars to be used and in order to measure accurately the shifts between images. digiphot, qphot ...

... Class . ... java.lang.Object ij.ImagePlus ij.CompositeImage . ... public class CompositeImage . ... CompositeImage ( ImagePlus imp, int mode) . ... Copies the LUTs and display mode of 'imp' to this image. LUT . ... public CompositeImage ( ImagePlus imp, int mode) . ... public void setLuts ( LUT [] luts) . ... Does nothing if 'imp' is not a CompositeImage or 'imp' and this image do not have the same number of channels. public void reset () . ... public void setChannelLut ( LUT table, int channel) . ...

. Computer Ephemeris. Lunar equatorial positions. Explanations. Each row contains at 0 h and 12 h of Time Dynamical Terrestrial: month, day, apparent right ascension (hours, minutes, seconds), apparent declination (degrees, minutes, seconds of arc) and geocentric distance (in Earth's radii).

... Q 12.649 0.523 0.342 -0.108 4444 -4.647 -4.582 "n6231_ 178" 16 53 48.63 -41 51 54.1 J2000.0 ! ... A few lines are then added to the top (see readme_asc2dxf for details) to produce input for asc2dxf :in.coo: n6231cp6.dxf slot line 2.00 43.00 9.00 43.00 point 9.773 19.026 n6231 _ 171 Q 12.649 11.236 57.382 n6231 _ 178 I 14.533 ... the output of this program is as follows :n6231cp6.dxf: 0 SECTION 2 ENTITIES 0 CIRCLE 8 1 62 3 10 43.00 20 43.00 30 0.000 40 43.00 0 ...

... Guider functions . ... Guide Sensor Performance . ... Guide Sensor Sky Coverage/ Star Availability . Guide Star Selection Criteria . ... Guide fiber organization and reach at plug plate . ... Plug plate holes for guide stars are identical to those for science FO . ... FOV for each of 9 guide stars is 7.4 arcsec dia. (0.45 mm FO, Sumitomo IGN-05/10) . ... Selected guide stars must have no neighbor stars within TBD (5 arcsec) radius that have a brightness within TBD (5 mag.) of guide stars . ...

Chair of solid state physics . ... position in MIPT: . Professor, Head of the Solid State Physics Chair . position in ISSP: . ... scientific degree: . Dr. S. e-mail: . kveder@issp.ac.ru . ... Professor, Deputy Head of the Solid State Physics Chair . ... zverev@issp.ac.ru . ... Secretary of the Solid State Physics Chair . ... povarova@issp.ac.ru . ... dev@issp.ac.ru . ... kulakovs@issp.ac.ru . ... maksimov@issp.ac.ru . ... Professor, Dean of the General and Applied Physics Department . ...

... Bus Hound may be the very first product of its kind -- a software bus analyzer for capturing device I/O and protocol. ... When the capture buffer fills to capacity, Bus Hound can be configured to stop the capture process or continue capturing, keeping the most recent acquired data. ... IDE : Bus Hound captures command and data transfers for ATA and ATAPI devices. ... B us Hound captures I/O using a device driver. ... The below figure demonstrates how Bus Hound captures data for SCSI devices. ...