Next: Image Arithmetic Up: Commands Grouped by Previous: Image Coordinates . ALIGN/IMAGE Calculate linear transformation between 2 images . EXTRACT/IMAGE Extract part of image . ... REBIN/LINEAR Pixel rebinning of image . REBIN/ROTATE Rotate an image any angle . REBIN/SPLINE Rebin an image with cube splines . REBIN/WAVE Rebin 1-D image to linear wavelength . ... TRANSPOSE/CUBE Rearrange planes of 3-dim data cube . TRANSPOSE/IMAGE Transpose an image . ...

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Rotang can either be run from the command line as described here or through the alfa_ang GUI . ... To run rotang at Arecibo: . Start IDL . ... rotang, Date , RA , Dec , Time , /choice . Here Date takes the format YYMMDD (e.g. 041128 for the 28 th of November, 2004). ... Rotang also calculates the Azimuth and Zenith Angle fir every source. If the Zenith Angle is greater than 20 degrees, then the program will return that the source is down and will not calculate an optimum ALFA angle. ...

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• Alfa_ang - IDL procedure for calculating the optimum rotation angle for ALFA
• Details of Rotang
• puntasalinas radar

... Extract a profile at RA,DEC = -15 -15 profdata ! ... For each profile in the mosaic, the program calculates this R.A., Dec position in grids. /*--------------------------------------------*/ /* promos ... -----------------------------------*/ #include stdio.h #include stdlib.h #include string.h # define xno 7.0 /* No of profiles in x,y direction */ # define yno 7.0 # define size 100.0 /* size of the total image in mm (always square)*/ # define margin 1.0 /* margin around the profiles */ ...

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• GPLOT recipes
• kpvslice: interactive position-velocity slicing
• cmodel (Model Image Generator) CentralProcessor 0.11 documentation

... 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 ...

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• The AstroStat Slog degrees-of-freedom
• *srcinten* - Calculate Source Intensity
• Calculation of errors in smoothed arrays

... This thread contains a step-by-step recipe to extract MOS spectra of a point-like source observed in Imaging mode and to create associated response matrices, starting from a calibrated, concatenated event list (either produced with emproc or available as PPS product; here it has the assumed file name MOS.fits ). ... The users should note that the SAS metatask xmmselect allows them to interactively define source and background regions (via ds9) and to run backscale on the fly. ...

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• How to extract PN spectra of a point-like source and associated matrices
• Extraction and correction of an X-ray light curve for a point-like source

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The algorithm and appropriate program for decametric radiosignal propagation conditions prediction for paths from 500 to 9000 km have been developed at ISTP SB on the basis of normal wave method (AltyntsevaB.I,Iliyin N.V., Kurkin V.I. and others //Decameters channel simulation on the base of normal wave method . ... Solar activity indices are chosen automatically from the prediction date from the database . ...

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... To set the coordinates in E2000 use xpaset -p tel target [ra] [dec] All commands and arguments are lower case. ... Primary functions set or get values and provide basic control with the actions noted tel status [exit/on/off] manage xpatel and the telescope controller tel goto [on/off] go to target tel track [on/off] toggle track on and off tel guide [on/off] toggle precision guide on target tel target [#] [#] target coordinates [RA (h)] [ Dec (deg)] (E2000) tel ...

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• AstroCC - A Coordinate Converter for Astronomy

function [l,b, mul , mub ]=equ2gal(ra,de, mura , mude ); %% % % Calculating galactic coordinates and % proper motion components: % Transformation: Equatorial ---- Galactic % Epoch and equinix J2000 % % Function call: [l,b, mul , mub ]=equ2gal(ra,de, mura , mude ) % % % Input: ra, de - eequatorial coordinates (in degrees) % mura , mude - proper motion components % in the equatorial ...

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Download Izmccd (~2.7 MB). ... If you want to calculate equatorial coordinates of object: . Click the " File " menu, and then click " Open " ; or press ?on toolbar. Choose a file with image. ... Also see section " Viewing of image ". ... Before, if it is necessary, you must make an account dark current and flat field (See section " Preliminary processing of images ".) ... Measure the marked stars. ... Click the " Calculations " menu, and then click " Coordinates " or . ...

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... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

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• ASC Coordinate Transformation -- The Pixlib Library, II
• Embedded Astrophysics Query Support Using Informix Datablades
• Calculating the Position and Velocity Components of HST

... For given geographical longitude and time zone show the current data and time, Universal data and time, current local star time. ... Accept 10 different data formats (data&time, data with decimal day of month, data with decimal day of year, decimal year, some Julian dates), calculate from any formate to others, show day of week. Current data and time direct insertion function is exists. ... Calculate angular distance between two points at the sky by its equatorial coordinates. ...

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• Universal coordinates transformer

... In polar coordinates, the point P is defined by its distance r from the origin O (see drawing) and by its polar angle ("azimuth" on a map) between the x-axis and the "radius" r = OA, measured counter-clockwise. ... When one or both are negative , the angle f is larger than 90 degrees, and such angles never appears in any right-angled triangle. ... There is a simple solution , though: use the above equations to re-define sin f and cos f for such larger angles! ... But it also works for larger angles....

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• Corrected Geomagnetic Coordinates
• How Orbital Motion is Calculated
• Coordinate systems [Oulu]

Software . This section describes miscellaneous software, such as a spreadsheet program (20/20), a calculator (CALC), and a program for printing sky plots (FINDER). 20/20 is a spreadsheet program available on KEPLER and DEVVAX. ... To start 20/20, you would type the following command: . ... Most users will want to specify either VT100 or VT220, although there are more then 50 valid terminal types recognized by the program, including Tektronix and Wyse terminals. ... Basic Commands: . ... CALC . ...

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• Observatory Support FAQ
• Observatory Support FAQ List
• How do I best determine an observation's actual orientation?

... sin f = y / r . cos f = x / r . ... They are now viewed as new definitions of the sine and cosine, for the polar angle f given by x and y ( a slightly different way of formulating this definition is described further below ). ... sin 2 f + cos 2 f = 1 . ... Angle . ... Many trigonometry texts define the sine and cosine slightly differently, using the so-called unit circle . ... Then the distance AB ("the sine line") equals sin a , and the distance OA ("the cosine line") equals cos a . ...

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• mcfile
• STDA files
• Corrected Geomagnetic Coordinates

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

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User has possibility to impose some restriction(s) on the Results of calculation. ... Possible set of restrictions depends on coordinates that were specified for planned run. ... The set of the quantities on which may be imposed restrictions in the next run are highlighted on marking Set restrictions . ... Dist. d(R.A.)/dt . ... Phase . ... To impose restriction on any quantity mark check box at the left of corresponding line and then click on the field where you want to introduce limitative value. ...

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• ENGAMPLE

... Returns UT1 in seconds, with UTC input in seconds. ut12gst ( utc _real [, ut1 _real ]) Function. Returns GST in hours, inputs are in seconds. hourangle ( gst _real , ra _real ) Function. Return hourangle in hours, with inputs also in hours. zenithangle ( ha _real , dec _real ) Function. Return zenithangle in degrees with inputs ha in hours and dec in degrees. mirrorangle ( ha _real , dec _real ) Function. ... Return horizon coordinates for input azimuth and elevation angle in degrees. ...

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• VST image of the star-forming region Messier 17 | ESO
• VLTI Calibrator Selection Help Page
• Basic definitions and sign conventions

... Robert L. Stewart (Brigadier General, USA, Ret.) ... SPECIAL HONORS: Awarded Army Distinguished Service Medal , Defense Superior Service Medal , 2 Legion of Merit, 4 Distinguished Flying Crossed, a Bronze Star, a Meritorious Service Medal , 33 Air Medals, the Army Commendation Medal with Oak Leaf Cluster and V Device, 2 Purple Hearts, the National Defense Service Medal , the Armed Forces Expeditionary Recipient of NASA Space Flight Medal (1984 & 1985). ...

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• Astronaut Bio: Harrison Schmitt
• Astronaut Bio: Eileen Collins (5/2006)
• Astronaut Bio: Mark C. Lee 10/2006

... Bojan Nikolic web pages (r. 329) . ALMA . ... LibAIR is the atmospheric inference library that is the main core of the algorithms for phase correction of ALMA data using water vapour radiometers that we are developing in Cambridge. ... The library and algorithms are documented in the series of memo?s which are being posted at page on inference of coefficients for use in phase correction. ... ALMA WVR phase correction algorithms and software . ... Introduction to phase correction for ALMA . ...

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• Command line interface to libAIR and water vapour column retrieval Bojan
• Bojan Nikolic -- Calculating dispersive path delay due to the atmosphere
• Bojan Nikolic -- Command line interface for retrieval of phase-correction

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

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• http://www.gao.spb.ru/english/as/j2014/presentations/tsyba.pdf
• http://www.gao.spb.ru/english/as/j2014/presentations/perepelkin.pdf
• Pulkovo NEO Page: Ephemeris Support