Next: Catalog Construction Up: Observations and Analysis Previous: Source Detections . ... It was assumed that the highest signal gives the most likely position of the source. ... Comparing the summed map with the maps from the individual energy ranges, the one which produced the smallest error box was chosen to represent the source position, as long as was greater than 4, a level chosen to reflect a reasonable degree of confidence in the detection. ...

Stellarium 0.12.3 . ... Renderer . FileљStructure . ... core . ... StelGLUtilityFunctions.hpp . ... 42 љ inline GLint glAttributeType( const AttributeType type) . ... 46 љ case AttributeType_Vec2f: . ... 49 љ return GL_FLOAT; . ... 68 љ inline const char * glslAttributeName( const AttributeInterpretation interpretation) . ... 72 љ case AttributeInterpretation_Position: return "vertex" ; . ... 267 љ inline bool glTextureSizeWithinLimits( const QSize size, const TextureDataFormat format) . ...

... Data . ... HST Overview . ... Cycle 24 Announcement . ... There are various sources of uncertainties when performing photometry with NICMOS that could affect the final accuracy of the measurements. In the following, several systematic uncertainties and special cases are mentioned. ... In summary, the accuracy of the absolute spectral energy distribution of NICMOS primary standards introduces a systematic uncertainty of about 2% - 3% in the absolute calibration of the filters. = 2.0 ?m) in NIC3. ...

... region (region-7.9) [xmmsas_20070708_1801-7.1.0] . ... At times it may be desirable to filter the source list before calculating regions. An example of such a case is if the list contains many rows for the same source position (as do eg the standard XMM source-list products). There is usually not much point in constructing more than one region for the same source position, so in this case it would be desirable to filter out all the excess rows before constructing regions. ...

... 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....

True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . ... Radio Images Page: not availabe . Link to Green's Catalog page . ... Exposure uf . ... 1982 . ... Exposure uf Exposure time of unfiltered event file . Exposure f Exposure time of filtered event file . Click left mouse button on hyperlink below to download file . ... Event 2 FITS File . ... AUX file . ... see fit detail page for more about the fit. see chandra spectrum page for region used. ... True Color Image . ...

Next: CORRELATOR BOARDS Up: OBSERVING PROCEDURES Previous: Frequency Switching . ... Continuum sources in the list used for flux density calibration were selected in an ad-hoc fashion from a variety of places, but primarily from Kuehr et al (A&AS, 45, 367, 1981), the compendium of linearly polarized sources by Tabara & Inoue (A&AS, 39, 379, 1980), and an unpublished list of unconfused calibrator sources prepared from the NVSS survey by Jim Condon and Qi Feng Yin. ... Board 0 . ...

Contents] [Prev page] [Next page] [Index] . ... Positioning HTML Content Using Styles . Positioning HTML Content Using the <LAYER> Tag . ... Absolute Positioning . ... Creating Positioned Blocks of Content Dynamically . Writing Content in Positioned Blocks . ... Positioning the Flower Layers . Positioning and Moving the Fish and Poles . Defining the onLoad Handler for the BODY Element . ... Adding Another Layer to Contain the Reverse Fish Image . ... The Initialization Functions . ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . FileљList . FileљMembers . ... python . ... axis . instFromObs.py . ... 10 љ """!Compute instrument position from observed coordinates . ... 12 љ @param[in] targObs position of target in observed coordinates (a coordConv.PVTCoord) . ... 20 љ - targInstXY: position of target in instrument coordinates (a tcc.base.ArrayPVT2) (deg) . ... 24 љ # compute the instrument-plane offset from boresight to target . ... 30 љ targObjXY = tcc.base.ArrayPVT2() . ...

On 1 February 2002 this Mirror was upgraded from NVSSlist v2.10 to NVSSlist v2.17 . ... This form searches the source catalog produced by the NRAO/VLA Sky Survey (NVSS). ... Object name [optional] : . ... Search radius and verification halfwidth in arcseconds [Optional] : . ... Enter a list of positions to search: . ... The contents of the NVSS source catalog and the techniques used by NVSSlist to derive error estimates and other parameters are described here. ...