Next: Noise distributions Up: Basic Concepts Previous: Basic Concepts . The acquisition of a data frame involves a spatial sampling and digitalization of the continuous image formed in the focus plane of a telescope. ... The individual pixel values are obtained by convolving the continuous image with the pixel response function . With a sampling step of and the digital frame is given by . ... A frame is oversampled when while for smaller sample rates it is undersampled. ...

SAI, graduates year 1982. ... Note: when just a 7-digit phone number is shown, it refers to a phone located in Moscow (international access 007-495). "+" in front of a number means that you must dial an international access code first (or just press "+" on your mobile phone keypad). ... 939-1672(work); . ... Ataev Sasha . 1-(703)-536-8881(home) (USA); . ... Bychkov Sergey . ... 1-(410)-740-8205(home), +1-(301)-286-2150(work) (USA); . ... 1-(412)-767-0332(home), +1-(412)-608-9339(mobile) (USA); . ...

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Star Atlas . ... Get to Know the Night Sky . ... Do astronomers know of or suspect any stars that were original members of the same star cluster as our Sun? ... The Sun is a star with a diameter of approximately 864,000 miles (1,390,000 kilometers), about 109 times the diameter of Earth. ... NASA/NSSDC Only one star, HIP 21158 in Taurus, remains a candidate sibling; however, the evidence that this star was born in the same cluster as the Sun is weak....

Загрузить программу (~10 MB). ... Программа izmccd предназначена для высокоточной астрометрической обработки числовых изображений небесных объектов. Программа позволяет получать как измеренные, так и экваториальные координаты малых планет, комет, спутников больших планет, визуально-двойных звезд и других объектов, а также идентифицировать уже известные малые планеты и найти на числовых изображениях движущиеся объекты. ... Программа является бесплатной. ... Автоматическая обработка, один объект. ...

... The software was originally developed as a set of Fortran routines which were available both as stand-alone executables and as IRAF tasks in the Dither package. ... This set of code formed the basis for a more automated task for aligning images to produce distortion-corrected images; namely, the Python task PyDrizzle (Section 5.3) . Finally, all the steps required to identify cosmic rays using the aligned images produced by PyDrizzle were automated in the Python task MultiDrizzle (Section 5.4) . ...

... Chandra | ESO | ... Field selection . ... Color composite image of the Chandra Deep Field South of 940 ks (pixel size = 0.984 arcsec, smoothed with a s =1 arcsec Gaussian). ... The Chandra Deep Field South (CDF-S) is one of the deepest observations obtained with the X-ray Chandra satellite, which stared at the same path of the sky for 11 days. ... ESO press release on March 13 , 2001 . ... APOD : The Chandra Deep Field South has been the Astronomical Picture of the Day on March 28, 2001 . ...

... title='Villeroy & Boch Artesano Original Молочник 0,15 л - Villeroy & Boch - Villeroy & Boch' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . title=' Японские наручные мужские часы Casio GMA-S110GD-2A. Коллекция G-Shock - Casio' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> Кварцевые часы. 12/24 часовой формат времени. ... Коллекция: Осень-зима 2015/2016 . ... Пол: Мужской . Ботинки Norway Originals. ...

The Laboratory of Electronic Kinetics ( LEK ) has powerful radio-frequency, microwave , cryogenic and high- magnetic - field sets of equipment , allowing to carry out precision phase-sensitive measurements of current and voltage in a frequency range 0-10 MHz and the microwave response of crystalline materials in cm-and mm- wavelength range in the temperature interval (0.1-300) K and in magnetic fields up to 18 T. Methodical principle of ... Magnetic field up to 18 T . ... Equipment . ...

. Russian Version [ MS-Win ] . [ News ] . [ Satellite data ] . [ SMIS ] . [ ] . 2/08/1996 . 7:44 MSK . original data . 2/08/1996 . 14:25 MSK . original data . 3/08/1996 . 9:02 MSK . original data . 3/08/1996 . 14:14 MSK . original data . 3/08/1996 . 17:51 MSK . original data . Back to SMIS Home Page .

Next: *display, xdisplay, xexamine* - Up: Image Display in Xwindows Previous: A Region mask for . In order to view a large image/qp file with the SAOimage display, it is necessary to block or section that image. The SAOimage pixel readout is not in original image/qp coordinates (physical) but in blocked and perhaps sectioned coordinates (logical). ... In the output file, your original region has been commented out and the same region in physical coordinates has been inserted. ...

... Gallery . ... Reception with an original fireplace . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . ... Title: Reception with an original fireplace . Description: NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ... Reception with an original fireplace NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ...

Standard analog magnetograms (20 mm / sec) are presented in the form of digital images, . ... Observatory, . ... 1949 , 1950 , 1951 , 1952 , 1953 , 1954 . ... 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , 1957 . ... 1950 , 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , 1957 , . ... 1950 , 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , . ... The project was conducted in 2003 by the International Council for Science ( "Rescue of Old Analogue Magnetograms by converting to digital images" , ICSU Grant–2003 Project). ...

... Astrophysics Group . ... Arcminute Microkelvin Imager (AMI) Digital Correlator . ... Variable Dielectric Delay Lines in Liquid Crystals for Phased Array Feeds . Atacama Large Millimetre Array (ALMA) . ... The Arcminute Microkelvin Imager (AMI) telescope is a dual array synthesis telescope consisting of two separately correlated arrays of receivers operating in the 12 to 18 GHz band. ... 2013, Astrophysics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE . ...

Programs to generate color spectra ================================== These programs were developed to produce realistic color spectra from digital data. ... The distribution here contains the original source code for colorspec and solar in C, and a version of solar written in Fortran. ... It will produce a color spectrum of any digital spectrum. ... The 800x50 image solarflux.ppm was generated by colorspec and the file fluxatlas.dat, a reformatted NSO Solar Flux Atlas in the data directory. ...

Starry Night Scavenger Hunt . ... Credit Copyright: Original Painting: Vincent van Gogh; Digital Collage: Ronnie Warner Explanation: Did you know that Van Gogh 's painting Starry Night includes Comet Hale-Bopp? ... OK, then find, the rings of Supernova 1987A , the Eskimo Nebula , the Crab Nebula , Thor's Helmut , the Carhwheel Galaxy , and the Ant Nebula . ... Finally, the collagist has graciously hidden APOD's 10th anniversary Vermeer photomontage to help honor APOD on its 15th anniversary tomorrow. ...

... Sampling Descretization of a continuous-in-time signal into a finite number of samples Nyquist-Shannon Theorem: lossless for real sampling if t Lossless for complex sampling if t 1 1 2 Quantization Approximation of a range by a finite set of values Each value can be represented by a code for internal representation A reconstructed signal will differ from the original due to introduction of quantization ...

Ultraviolet data (DUV) . ... The section "Original data" contains original information in analogue-digital and digital- analogue codes. The section "Data for analysis" contains pre-processed data for further analysis. Tatiana" program can be used for graph presentation of the experimental data, and "Orbitron" program - for geographical control of the data. Manual on how to use the programs and the data is in the HELP-file. ... Original data . Data for analysis . Tatiana program . ...

... The Radon transform (also known as the Hough transform) is formulated as a family of line integrals through a two-dimensional function. ... The Radon transform provides us with a simple means of computing the FF plane of the autochirplet transform, by using the Wigner distribution, and arriving at a transform space that tells us basically the same information as the chirplet FF-plane, except that we benefit from the greater resolution of the Wigner distribution. ...

The rotary floor room inside the gregorian contains the receivers and the IF/LO equipment to mix from the RF frequency to the first IF frequency. There is a temperature sensor mounted at the center of the rotary floor. It records the temperature every 10 seconds. ... The first link is the temperature by day for the last 5 days. ... The table has links to temperature vs hour of day for each month. ... Turret room temperature for the last 5 days (.ps) ( .pdf ) . ... jan16 .ps .pdf . ...

10/18/2003 1:02 PM . ... Original: 960x1280 (209k) . ... Thumbnail: 150x200 (6k) . Flash: Flash did not fire . ... Aperture: f/4 . ... Original: 960x1280 (153k) . ... Original: 1280x960 (158k) . Thumbnail: 200x150 (8k) . Flash: Flash fired . ... Original: 1280x960 (378k) . ... 11/10/2004 8:42 PM . ... Original: 396x592 (92k) . Thumbnail: 134x200 (6k) . ... Original: 396x592 (87k) . ... Original: 396x599 (69k) . Thumbnail: 132x200 (5k) . ... Thumbnail: 200x132 (5k) . ...