Anton Koekemoer , STScI . ... This page describes the COSMOS data obtained with HST ACS/WFC, which is a detector comprised of two CCDs, each 2048x4096 pixels, with a scale of approximately 0.05"/pixel. ... The V1.2 images for the full 270 orbits from Cycle 12 have been produced by combining them with the MultiDrizzle software (Koekemoer et al. 2002) using the latest improved geometric distortion corrections for the ACS camera, together with improved absolute astrometry for each pointing. ...

... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

SAS home . ... List of SAS threads . OM data processing from A to Z is performed by two "chains": omichain and omfchain , for image and fast mode data respectively. ... Then a source detection algorithm is used to identify the sources present in the image. ... A final source list is obtained from all exposures and filters. ... If the user has PPS products from the processing of his/her observation, or from the XSA, then the first thing to do is to overlay the image source list onto the sky image. ...

MAIN METROLOGICAL CENTER RUSSIAN FEDERATION National Research Institute for Physical-Technical and Radio Engineering Measurements (VNIIFTRI) e ­ mail: pasynok@vniiftri.ru, ru bezmenov@vniiftri.ru JOURNEESE 2014 VNIIFTRI as the Russian Main Metrological Center of Time, Frequencies and Earth Rotation Service th ti carried out the rapid EOP processing based on GNSS, VLBI and SLR observations for many years. 2 VNIIFTRI takes participation in GNSS and SLR observations of IGS and ILRS too. ...

You can also see this page in Russian with using KOI8 (X Windows) or CP1251 (MS Windows) Cyrillic coding. The Laboratory supports the space TV experiments, mainly in the planetary exploration missions. ... Image Co-registration . ... PHOBOS mission - Martian satellites investigations. Phobos on the Martian limb, the image from Phobos-2 probe from 02/28/89. ... Russian Space Bulletin. ... Last modified at June,26 1997 Alexey Kuzmin: akuzmin@mx.iki.rssi.ru . Back to IKI home page ...

... An estimate the rotation period of cometary nuclei is important for understanding and describing the physical processes of the cometary activity. Unfortunately, the measurements of the rotation periods of the comet nucleus depend on the model assumptions and it is one of the main reasons for the scatter of the estimates given in various articles for a given comet. ... Right: the image of the comet 29P/Schwassmann-Wachmann 1 obtained at the 6-m telescope. ...

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

... CentralProcessor 0.11 documentation . BETA Processing Pipelines . ASKAPsoft is the suite of processing software developed by the ASKAP computing team to handle the pipeline processing of ASKAP observations. ... BETA processing uses a slightly different approach, particularly in the calibration method, and the set of scripts detailed here are designed to demonstrate a BETA reduction approach with ASKAPsoft. ... ASKAPsoft processing of BETA data . ... How to run the BETA pipelines . ...

... Observation pre-processing consists of standard bias, dark and flat-field corrections. The package provides different commands to average images, extract sub-images or normalize flat-fields. General information related to preprocessing commands is available in the section Dark, Bias and Flat-Field of SHOW/LONG and can be obtained by: . ... The command PREPARE/LONG extracts sub-images. ... The command processes a catalog by default or an image if the name is provided with the extension .bdf . ...

Image credit: Michael Nolan, Arecibo Observatory. These radar images of near-Earth asteroid 2001 SN263 were obtained on 2008 Feb 12 and 13. ... Image from Feb 12 . ... First near-Earth triple asteroid discovered by Arecibo Observatory . ... was discovered this week by astronomers at the sensitive radar telescope at Cornell University?s Arecibo Observatory in Puerto Rico. ... For example, Arecibo has discovered more than half of the near-Earth binary asteroid systems discovered since 1999. ...

... Summary of reduced ISAAC fields . ... This data release includes eight fully reduced VLT/ISAAC fields in J,H,K s bands covering 50 arcmin 2 of the GOODS region in the Chandra Deep Field South (CDFS). ... 8 ISAAC fields) . ... The 8 ISAAC fields which are part of this data release are superimposed onto a SOFI image (J+K) (part of a previous EIS data release). ... In one case (GOODS field 11/J-band), for which not enough standard stars were available, the ZP was boostrapped from previous SOFI/EIS data...

... The experience of determination of the link between radio sources and dynamical reference frames is presented. To obtain this connection we used a series of very long baseline interferometry (VLBI) observati