... Moving the sample locations to achieve the desired warping will result in an irregularly sampled image plane. These irregularly spaced samples will then be brought back to regularly spaced positions, hence warping the image. ... The sampled impulse response, , is a function of the sample positions, . ... Allowing the sum to go outside the image boundaries ( or ) includes some ``anchor'' samples outside the image, which tends to stabilize the solution trajectory when is minimized. ...

... The fitting package in STSDAS (Space Telescope Science Data Analysis System) relies on two basic techniques (one linear and one non-linear) for fitting functions to data. ... Results show that both methods may generate biased coefficients (at the ~few percent level), and over or under-estimate error bars (at the ~10 percent level), in particular from low signal-to-noise data. ... Function coefficient errors are computed directly from the covariance matrix. ... Abscissa is signal-to-noise. ...

... the alfa calibration results (.ps) ( .pdf ): . the pointing error vs rotation angle offset (.ps) ( .pdf ): . ... Comparing the two lets you separate out the alfa installation errors with general telescope pointing problems (from the beam repair). ... Part of the pointing error could come from the alfa rotation angle being off. ... Compute the change in the pointing error if the alfa rotation error was off by -5 to +5 degrees in .1 degree steps. ... Top: rms pointing error vs rotation angle offset. ...

... The tilt of the holes was compared to that of the telecentric surface of the contemporaneous spectrographic optical design, kent005. ... The tilt of each hole as a function of its radial location on the plate is plotted along with the ideal tilt from optical design kmg001 (Figures 2 through 7). ... Figure 2: Hole tilts for uw0100. ... Measurements of the tilts of holes in plates drilled in December of 1994 have been reanalyzed and compared to the ideal hole tilt of the current optical design kmg001....

Next: Results & Discussion Up: Coronal Hole Diagnostics out Previous: Introduction . ... The dates of the observations discussed here, their locations, pointing, slit sizes and exposure times are given in BTDW. ... Line fits are given by the dotted line. ... An estimation of the errors in the derived parameters was obtained using the GA-derived parameters as an input for a ``classical'' IDL-CURVEFIT procedure (Peter, 1999; Peter & Judge, 1999). ...

... User Guide ] Task: conterr Purpose: Continuum subtraction error estimate, when using UVLIN. Categories: uv analysis Given an image of the continuum in a spectral line experiment, CONTERR estimates the residual continuum artifacts that will be present after continuum subtraction using UVLIN. ... No default. Key: order The order of the polynomial fit in UVLIN, either one or two numbers can be given. If two, then CONTSEN determines the error for order(1) to order(2) inclusive. ...

... The PROS system provides the capability to keep track of the uncertainties in image files through error arrays. ... There is a task, errcreate , that will estimate the errors in an image and produce an error array. ... Some tasks that transform images, such as imsmooth, imcompress , and imreplicate have the option to produce a resultant error array, derived from the original image's error array. Note, however, that the imcalc task does not produce an error array. ...

... GCN 8471 | ... TITLE: GCN CIRCULAR NUMBER: 8516 SUBJECT: GRB 081102: MASTER refind and final results DATE: 08/11/11 15:50:10 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.Parkhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State GCN Circ 8470, Lipunov et al., ...

... This appendix describes how to use the JavaScript console to evaluate expressions and display error messages to the user. ... Displaying Error Messages with the Console JavaScript 1.2 and earlier versions. ... You can specify whether to automatically open the console when a JavaScript error occurs or to display a dialog box for each JavaScript error. ... To open a dialog box each time an error occurs, add the following line to prefs.js : user_pref("javascript.classic.error_alerts", true); . ...

... Bojan Nikolic web pages (r. 329) . ... The model beams with various amount of defocus for a telescope with moderate coma and the error beam for that focus setting, that is the difference between the model beam and the model beam for a perfect (no coma) telescope. ... Error beam . ... The search results are restrict to these pages only . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

... Results of measurement of Jovian flux, enumerated on a standard distance 4.04 бе, are displayed on figure 1a. The attempt is made to divide a response of a magnetosphere of the falling comets into two parts: immediate responce during impacts and more delaed one. On figure 1b the relation of the measured flows to a relative phase is showed and the data from July 17 till July 23 are excluded. ... A shaped line - prospective sinusoidal relation of a flow to a phase. c) Flux depending on date. ...

... IPACMAN V2.5 Test Plan (or more) . ... Anyway, results given hereafter are related to one plaform only (the one mentioned on the top). ... specific testcases The following testcases correspond to the minimum set of tests to be run on every new IPACMAN release (alpha, beta, final, .. ... 1/ START IPACMAN . ... Expected result . ... Verify IP: select an IP on disk and run Reports>verify IP . ... IP Diff: select two IPs on disk, and run Reports>IP Diff and check manually the results: verify the . ...

RECURSIVE FUNCTION ADAPTIVE_QUAD (F, A, B, FA, FB, TOL , ABS_ERROR ) RESULT ( RESULT ) IMPLICIT NONE INTERFACE FUNCTION F(X) RESULT (FUNCTION_VALUE) REAL , INTENT(IN) :: X REAL :: FUNCTION_VALUE END FUNCTION F END INTERFACE REAL , INTENT(IN) :: A, B, FA, FB, TOL REAL , INTENT(OUT) :: ABS_ERROR REAL :: RESULT REAL :: STEP, MIDDLE_POINT , FMIDDLE ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > FAQ . Available Languages: en | ... Symptoms of this problem include the above message in the error log and zero-length responses to non-zero-sized files. ... A Permission denied error in the error_log , accompanied by a Forbidden message to the client usually indicates a problem with your filesystem permissions, rather than a problem in the Apache HTTP Server configuration files. ...

New reduction of minor planets photographic plates obtained with Pulkovo Normal Astrograph A.A. Berezhnoy Pulkovo Observatory of RAS, Saint-Petersburg, Russia Minor Planet observations at Pulkovo Periodical observations of 14 bright asteroids named Selected Minor Planets (SMP) were performed at Pulkovo since 1948 within the international framework started by works of B.V. Numerov and D. Brouwer. ... 108 133 113 74 124 67 97 88 14 84 64 5 20 19 Epochs (YYYY.MM) 1200 Mean values of total obs. ...

Next: Imaging Polarimetry with NICMOS Up: NICMOS Data Calibration and Previous: The Photometric Performance of . ... NICMOSlook and Calnic C . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... NICMOSlook and Calnic-C are two programs that were designed to take advantage of the fact that the NICMOS grism mode typically consists of taking both a direct and a grism image. ...

Download Izmccd (~2.7 MB). ... a) a choice of the best mode of measurements of stars and objects ("Properties/Measurement"), . b) a choice of reference stars. ... 1) necessity of presence on an image of a plenty of stars (we recommend to apply this mode, if on the frame of reference stars is more 100) . ... Sx and Sy depend from residuals at all reference stars (reference stars are marked by blue color). ... These residuals are the image of the star a minus function of a profile for each pixel. ...

When a command is carried out successfully, the results are sent to the standard output file. But if the command fails to execute successfully the results are displayed on the standard error file -your terminal. For example: ls -l part1.txt part1.txt not found . The ls command fails because the file part1.txt does not exist in the current directory. A message is sent to the standard error - your terminal - informing you of this. ...

This document explains how Apache uses the URL of a request to determine the filesystem location from which to serve a file. ... User Directories . URL Redirection . ... the URL http://www.example.com/docs/dir/file.html will be served from /var/web/dir/file.html . ... The module mod_userdir extends this idea to the web by allowing files under each user's home directory to be accessed using URLs such as the following. http://www.example.com/~user/file.html . ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Venus . ... Sky this Month . ... Astronomy for Kids . ... Is the incredibly slow rotation of Venus a result of a geologic cataclysm? ... It appears unlikely that resurfacing, if it occurred, led to the slow rotation rate of Venus, but it certainly may have caused some changes to the speed. ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...