... 2.1 What is Dithering? ... 2.4.1 No Dithering . ... 2.4.4 Dithering for Parallel Images . 2.5 More Detailed Considerations . 2.5.1 Data Quality Issues involved in Dithering . ... 2.5.4 How many Images to Obtain at each Dither Location . ... 3.2.3 Drizzle . ... 3.4 Image Fidelity After Drizzling . ... 4.2.1 Introduction . ... 5.3.2 Parameters . 5.3.3 Basic Examples . ... 5.4.8.1 General Explanation . 5.4.8.2 Parameter Details . ... 5.5 Optimizing the Drizzle Parameters for Your Data . ...

The position of the objects on the sky were generally measured to a precision between 1 and 4 arcsec. ... For the stars, the position is always at epoch 2000, whatever J2000 or B1950 coordinates are printed. ... The celestial position is given as coordinates in 4 different systems: . ... B1950 . ... Galactic coordinates in the reference frame called "new" system, adopted by IAU in 1958. Galactic pole at B124900.0+272400, node at ra=282.25,l=33 deg (inclination 62.6 deg). ... 1 arcsec . ...

... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...

... Meta Index / Home Page This section documents the parameters recognized by this task (if any). Parameter . ... table . Name of the source time series file . ... Event list used to extract the original time series . ... boolean . false . Boolean to enable/disable the background time serie . ... Name of the background time series . ... Name of the output file . ... Source position specified . ... Coordinate system for which source position is specified . ... X position of source . ...

Next: Details of Setup File Up: Setup Files Previous: Examples of Setup Files Contents . A list of the setup parameters is given below, followed by detailed information on each setup paramater in Section 3.6.4 . ... Note that the VLBA uses the concept of baseband channels. ... BBC: BBC assigned to each baseband channel. ... IFCHAN: IF channel to BBC for each baseband channel. ... NCHAN: Number of baseband channels. ... TPSPEEDH: Tape speed in inches per second at high density (obsolete). ...

... rotang, Date, RA, Dec, Time, accS, ast=ast, ha=ha, lst=lst, jd=jd, az=az, za=za, sep=sep, rotang=rotang, alfabeams=alfabeams . ... It is thus possible to specify, for instance: rotang, ... , ha=haHr, lst=lstHr, ast=astHr . ... alfa_angle - script to launch the GUI . alfa_ang.pro - the GUI: provides input to rotang and a graphical display of the results. rotang.pro - the main routine of the program: finds the required time, the other associated times, Az and ZA using ao_idl routines. ...

Stellarium 0.12.3 . ... TextParams Struct Reference . Parameters specifying how to draw text. ... TextParams (const float x, const float y, const QString &string) . Construct TextParams with default parameters. ... TextParams ( Vector3 < F > &position3D, StelProjectorP projector , const QString &string) . Construct TextParams to draw text at a 3D position, using specified projector. ... string љ . ... Text string to draw. ... The required string parameter is also set, as is the projector. ...

... Impact of Covariance Information on the Orientation Parameters Between Radio Source Position Catalogs, IVS 2012 General Meeting Proceedings, p.339­341 http://ivscc.gsfc.nasa.gov/publications/gm2012/sokolova.pdf Impact of Covariance Information on the Orientation Parameters Between Radio Source ... IVS Analysis Centers provide these catalogs in a standard IERS format, where together with radio source positions and other relevant information, RA/DE correlations are reported. ...