... In the above example, the second region uses the global coordinate system (PHYSICAL by default). ... Supported systems include: name description ---- ----------- PHYSICAL pixel coords of original file using LTM/LTV IMAGE pixel coords of current file FK4, B1950 sky coordinate systems FK5, J2000 sky coordinate systems GALACTIC sky coordinate systems ECLIPTIC sky coordinate systems ICRS currently same as J2000 LINEAR linear wcs as defined in file In addition, two mosaic coordinate ...

Table 3.1: Designations of Special Targets . Table 3.2: Target Categories . Table 3.3: Descriptive Keywords for STAR and EXT-STAR . Table 3.4: Descriptive Keywords for STELLAR CLUSTER and EXT-CLUSTER . Table 3.5: Descriptive Keywords for GALAXY . ... Table 3.13: Bright-Object Constraints . The use of "FIXED_TARGETS" and "GENERIC_TARGETS" are described in this chapter. ... In this chapter, each heading has a description followed by a keyword in square brackets (e.g., [ Number] ). ...

... Miriad has a couple of tasks available for finding positions of sources (see also cgcurs in Chapter 17 ). ... It fits a 2-D parabola to the image intensities in a 3 by 3 pixel box centred on the brightest pixel in a specified region and reports the fitted location and intensity. ... Input image . ... The quality of your fit can improve significantly by selecting a snug region, and/or using the clip keyword to keep pixel values with little signal (e.g. sidelobes and noise) out of the fitting process....

The FITS archive & data processing pipelines . ... The archived data are broad band images (BBI) and long-slit spectra (LSS) plus their associated template and calibration files. The data in HFA can enter into the HyperLeda processing pipeline and the results can be freely downloaded. ... Definition of the file system (structure of the archive) . ... The coordinate systems must be updated when the data (pixel data, other keywords, related tables) are altered (eg. rebinning of the image). ...

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 . ...

POSSIBLE WRONG COORDINATE SYSTEM TYPE IN ARECIBO FITS-HEADERS POSSIBLE INCORRECT REQUESTED COORDINATES IN ARECIBO FITS-HEADERS POSSIBLE INCORRECT COORDINATE OFFSETS IN ARECIBO FITS-HEADERS Data affected: some FITS-files taken with CIMA 2.3 up to 2008-Apr-01 some FITS-files taken with CIMA 2.2 and earlier versions ======================================================================= A bug affecting the reported commanded coordinate ...

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 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. ...

User catalogs allow you enter positions for your objects into a file, to save time during an observing run. ... Before diving into the details, here is an example: # default coordinate system and object # (these are the standard defaults, so if you like them you can omit this line) CSys=FK5; Date =2000; RotType= Object ; RotAng=0 # some random objects # Name Pos1 (e.g. RA) Pos2 (e.g. Dec) Options in keyword-value format NGC6543 rot 90 ... Object Data . Defaults . Catalog Options . ...

... This file table1 97 1345 A catalog of positions, radial velocities and proper motions table2 36 19 Coordinates of Kapteyn's areas table3 64 30 List of suspected bynaries and variables ------------------------------------------------------------------- ... Format Units Label Explanations -------------------------------------------------------------------------------- 1- 2 I2 --- N Kapteyn's area number 6- 18 A13 --- Name Star identification 21- 22 I2 h RAh ...

Routines can now be called with keyword arguments and can use default arguments, that means that some arguments can be given with keywords instead of position and some do not have to be given at all, in which case a standard or default value is used. ... IMPLICIT NONE INTERFACE SUBROUTINE SOLVE (A, B, N) INTEGER, INTENT (IN) : : N REAL, INTENT(OUT) : : A REAL, INTENT(IN), OPTIONAL : : B END SUBROUTINE SOLVE END INTERFACE REAL X ! ... You will use keyword arguments and default arguments so that . ...

... 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 . ...

Method for High-accuracy Determinations of Orbits of Small Bodies from Three Observations . ... A new method is suggested for finding the preliminary orbit of a small celestial body from three pairs of angular measurements of its position at three moments. ... The methodical error of orbit computation by the proposed method is generally three orders smaller than the corresponding error of the traditional approach based on the construction of the unperturbed Keplerian orbit . ...

... 7C(G) catalogue -------------------------------------------------------------------------------- See also: J/A+AS/110/419 : 7C: 151MHz survey of region RA=17h, DE=+65deg (Visser+, 1995) J/MNRAS/282/779 : 7C: 151MHz survey of region 9-16h 20-35deg (Waldram+ 1996) J/MNRAS/298/637 : 7C: 151MHz survey of 3 regions (Pooley+, 1998) Byte-by-byte Description of file: catalog.dat ---------------------------------------------------- ...

... Once "point" is read, assumes all the following x,y coordinates are points. ... Program asc2dxf c reads set of x,y coordinates and writes a .dxf file for aperture plate. character*4 xop1,xop2 character*12 outfile 1 format ( 1h0 /7hSECTION/1h2/8hENTITIES/ 1h0 ) 2 format (6hCIRCLE/1h8/1h1/2h62/1h3) 3 format (4hLINE/1h8/1h1/2h62/1h3) 4 format (5hPOINT/1h8/1h1/2h62/1h3) 5 format (2h10/5h43.00/2h20/5h43.00/2h30/5h0.000/2h40/5h43.00/ 1h0 ) 6 format (2h10,/,f6.3,/,2h20,/,f6.3,/,2h30/5h0.000) 7 ...

Stellarium 0.12.3 . ... VertexP3T2 Struct Reference . Vertex with a 3D position and a 2D texture coordinate. ... VertexP3T2 (const Vec3f &position, const Vec2f texCoord) . Construct from a 3D position and 2D texture coordinate. ... VertexP3T2 (const Vec2f pos, const Vec2f texCoord) . Construct from a 2D position, setting the z coord to 0, and 2D texture coordinate. ... VERTEX_ATTRIBUTES ( Vec3f Position , Vec2f TexCoord) . ... position . ... VertexP3T2::VertexP3T2 . ... const Vec2f љ . ...

... Step 1: The Footprint position calculation by the magnetic field line tracing from the satellite position up to the Ionosphere by using IGRF + Tsyganenko [1987] magnetic field model (the stop trace altitude 110 km). Step 2: Tracing back from the Footprint (produced on the Step 1) to the dipole equatorial plane (by using only IGRF magnetic field model up to the geocentric distance 8 RE and dipole field model after this distance). ... Back to the description . ...

polimodel -- Produce model linear polarization and position angle images . ... Whether to apply random errors to output polarization and position angle values. seed = "" [integer] . ... This task produces a model linear polarization image and corresponding position angle image from an input image assumed to represent intensity (Stokes I parameter). ... A threshold for the input image can be defined such that polarization and position angle are not computed for input values less than this threshold. ...

polimodel -- Produce model linear polarization and position angle images . ... Whether to apply random errors to output polarization and position angle values. seed = "" [integer] . ... This task produces a model linear polarization image and corresponding position angle image from an input image assumed to represent intensity (Stokes I parameter). ... A threshold for the input image can be defined such that polarization and position angle are not computed for input values less than this threshold. ...

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