Instrument Summary -- Why Use the GHRS? Here we provide a brief overview of the basic properties of the GHRS. ... The GHRS can obtain spectra from about 1150 to 3200 . ... The repeatability of fluxes is even better, being better than 1%; i.e., it is possible to compare measures of the same wavelength in the same star at different times to within 1% for observations with the LSA. ... The source to be observed may be placed in a Large Science Aperture (LSA) or a Small Science Aperture (SSA). ...

... Data archive . ... The Australian National Data Service (ANDS http://www.ands.org.au ) have provided funding to provide the means by which the pulsar data sets are archived and made available for search and download. ... The data is available through the CSIRO Data Access Portal (DAP) ( https://data.csiro.au/dap/specificSearch ) which allows files to be downloaded after an initial embargo period. ... CSIRO Data access portal : allowing pulsar observations to be downloaded . ... Pulsar Data Archive ....

Next: Reduction of long-slit spectra Up: Long-slit spectroscopy Previous: Long-slit spectroscopy . ... pixel -1 and spectral resolution of about 12 ? ... We used the spectrograph ALFOSC equipped with a Loral (W11-3AC) CCD, with a 13 400 slit, and grisms #6 and #7 (110 ?/mm), which provide a spectral dispersion of 1.5 ? ... The seeing during the spectral observations was 08. Next: Reduction of long-slit spectra Up: Long-slit spectroscopy Previous: Long-slit spectroscopy Labaratory "Structure" . ...

... Two sources of bad pixels are considered here: . ... A few months later, the user may note that the applicable bad pixels file (listed in the calibration index file generated by cifbuild ) has changed. bad pixels files; those may be obtained from the merged events list by running emeventsproj and embadpixfind for MOS, or badpixfind for PN, with user-defined settings and energy or time selection. ... Another possibility is to take the BADPIXnn tables from another events list. ...

... ISC Kosmotras . ... Dnepr launch record 17 August 2011. ... On 9 September 2009, a contract was signed between ISC Kosmotras and SSTL for the launch of Nigeria-2 and NigeriaSat- у satellites on Dnepr rocket as part of 2010 cluster launch from Yasny Launch Base. According to information provided by SSTL the NigeriaSat-2 satellite is being built for the Nigerian government (NASRDA) as a follow-on to the NigeriaSat-1 satellite that was launched in 2003. ... E-mail: info@kosmotras.ru . ...

... The AST library provides a comprehensive range of facilities for creating and using world coordinate systems that describe astronomical data. This paper gives a brief over-view of these facilities and a description of the integration of these facilities with the Starlink ``Extensible N-Dimensional Data Format'' (NDF), which stores bulk data in the form of N-dimensional arrays of numbers. ... WCS - A new component which provides facilities for storing an AST FrameSet . ... Display of WCS grids . ...

... R2240 Date Received: 2006-Jun-01 15:33:23 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Planetary Radar Solar System 18 Hours 3 hours S-Band Radar Observations of Enceladus We propose S-band radar observations of Saturn's moon Enceladus to improve our previous detection. ... This is the last good opportunity to observe Enceladus from Arecibo until 2028. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Two observations of HD 32633 obtained at close phases, one with NARVAL (Phase 0.689, taken 17 Dec 2006) and one with ESPaDOns (Phase 0.700, taken 26 Jan 2008). ... In this paper we describe and evaluate new spectral line polarisation observations obtained with the goal of mapping the surfaces of magnetic Ap stars in great detail. ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

... The first step to improve the FORS calibration is therefore to obtain data to allow a computation of the illumination correction across the field. ... Another limitation on the calibration accuracy has been the brightness of the Landolt standards which have forced the use of extremely short exposures introducing small but non-negligible shutter-time errors and also resulting in a very small number of useful standards per frame. ...

Observations of the cosmos provide a valuable tool to study the fundamental laws of nature. The future generation of astronomical surveys will provide data for a sizeable fraction of the observable sky. These rich data set should provide the means to answer fundamental questions: what are the laws of physics at high energies in the Early Universe? what is the nature of neutrinos? what is the dark matter? what is the dark energy? why are there baryons at all? ...

Solar Maximum Mission . USA Solar Mission . Courtesy of NASA's National Space Science Data Center . The Solar Maximum Mission (SMM) was designed to provide coordinated observations of solar activity, in particular solar flares, during a period of maximum solar activity. ... Complementary studies were made as part of the SMM guest investigator program, and coordinated in situ measurements of flare particle emissions were made from the ISEE 3 spacecraft. ...

... 8, ``Celestial Mechanics'', 2002 Parameterization of the Solar Radiation Pressure model for GPS satellites I. S. Gayazov Institute of Applied Astronomy, St. Petersburg, Russia The treatment of solar radiation pressure (SRP) effect until now is the main problem in precise modeling of GPS satellite orbits. ... In practice, however, all seven parameters of the empirical model cannot be confidently determined from phase observations. ... Bar­Sever Y. E. A new model for GPS yaw attitude. ...

USA Solar Mission . Courtesy of NASA's National Space Science Data Center . The Solar Maximum Mission (SMM) was designed to provide coordinated observations of solar activity, in particular solar flares, during a period of maximum solar activity. ... Complementary studies were made as part of the SMM guest investigator program, and coordinated in situ measurements of flare particle emissions were made from the ISEE 3 spacecraft. The spacecraft was launched on February 14, 1980. ...

... We present the results of our new observations of TYC 0075 01143 1, a recently discovered double-mode Scuti variable. We improved the frequencies and and pulsation amplitudes, detected the interaction frequencies , , and a possible nonradial frequency . ... The finding chart of TYC 0075 01143 1. ... Using our new observations of TYC 0075 01143 1, we improved the frequencies and , detected oscillations corresponding to interaction between and : and ; we also found a possible nonradial frequency . ...

file: fluxmap.txt crea: deh date: 2008 Jul 29 tlm : 2010 Apr 23 Subj: Content for Xjet webpage on fluxmaps 1.0 GENERAL 2.0 FLUXMAPS & PHOTOMETRY 3.0 RADIO MAPS 4.0 EVENT FILE 5.0 DOCUMENTATION 6.0 CAVEATS 1.0 GENERAL From 2008.5, we are adding Chandra X-ray fluxmaps and associated files to the downloadable images. ... Thus the units for the flux maps are erg/cm^2/s per logical pixel. Summing the 3 band maps produces the total fluxmap which we smooth with a Gaussian and provide for visual purposes. ...

... I would several points which we faced during our everysolved for better quality of individual ACs' and EOP products · There are two main EOP products provided by two IERS Product Centers on Earth Orientation (Earth Orientation Center (EOC) and Rapid Service/ Prediction Center (RSPC)). ... However, the latter is not provided by the IERS. ... ITRF · Using ITRF in computation of EOP series produced by various ACs seems to be a necessary condition to provide the consistency between the IERS products. ...

. The TV System for Navigation and Observation (TSNN) has been designed for solving navigation and scientific tasks of the "Phobos-Grunt" mission. Wide-angle . TV camera . TSNN includes four TV two narrow-angle and two wide-angle cameras. Every camera has built-in processor for real-time data processing. Each pair of TV cameras provides for stereoimaging. Narrow-angle . TV camera . Characteristics . Ground tests results . Publications

We report here on those proposed UIT targets that, in fact, were successfully acquired. ... Note on Filters: . A1 centered at 2500 angstroms with a width of 1200 angstroms . ... Sextans A is a low mass dwarf companion to the Milky Way Galaxy. It is sufficiently close that it is easily resolved into its individual stars. ... An exposure of 1100 seconds through the A1 and B1 filters was obtained. NGC 2903 Is a relatively nearby mostly face-on galaxy with active star formation. ...

Follow-up observations with the University of Washington 0.76 m telescope at Manastash Ridge Observatory (MRO) of the Sloan Digital Sky Survey (SDSS) cataclysmic variable (CV) SDSS J170053+400358 are presented. ... They estimate that the dimming amounted to about 0.028 mag (using two comparison stars that were each about 4 mag fainter than HD 209458). only UW affiliated authors have been listed, student researchers are marked with an ``*'' . ... XTE J1859+226" UW affiliated authors: *Kevin Krisciunas. ...