... HST . ... HST Overview . ... 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). ... This means that the SSA is better for obtaining spectra with the best resolution. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... ATNF facilities . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Images . ... The MAPPIT (Masked APerture Plane Interference Telescope) instrument has been used for NRM observations at the 3.9m Anglo-Australian Telescope. ...

... Data was taken with lbw and the mock spectrometers on 05may09 to investigate the problem with higher time resolution and bandwidth. ... 6 172 Mhz bands were taken centered at: 1200,1300,1400,1500,1600, and 1700 Mhz. 8192 channels (20Khz resolution) was used for the low time resolution (.1 second dumps). 4096 channels (40Khz resolution) was used for the high time resolution (.001 second dumps). ... The total power was computed for each 172 Mhz band and then plotted vs time (.1 second resolution). ...

IBIS - The Interferometric BIdimensional Spectrometer . The I nterferometric BI dimensional S pectrometer (IBIS) is a next generation bidimensional spectrometry instrument based on a dual Fabry-Perot interferometric system. ... This will allow it to address a variety of observational programs in solar physics. ... Cavallini, F., Berrilli, F., Cantarano, S., Egidi, A. and Baffa, C.: 1999, IBIS: A New Instrument for Solar Bidimensional Spectroscopy , JOSO Annual Report 1999 , 29 , p. 99 . ...

... Science . ... Science Users Information > Science Publications > Science Announcements . ... Observing Facilities . ... Observing with ESO Telescopes . ... Phase 1 Proposals . ... Published: 03 Jul 2015 . ... Recent developments of the Adaptive Optics Facility ( AOF ) project and the use of a laser comb for improved wavelength calibration have been announced. The 4 Laser Guide Star Facility ( 4LGSF ) achieved first light with the first of the laser guide star units on VLT UT4; see Announcement . ...

... CONTACT . P. Andreani (ESO) . D. Bockelee-Morvan (Paris) . ... C. De Breuck (ESO) . ... R. Laing (ESO) . ... M. Zwaan (ESO) The Herschel Satellite and the Atacama Large Millimeter Array (ALMA) are two very large sub-mm and far infrared (FIR) astronomy projects that are expected to come into operation in this decade. ... This report is addressed to an audience of non-specialist astronomers who may be interested in extending their areas of research by making use of Herschel and ALMA instruments. ...

... GSAOI Home . Instrument . ... The Gemini South Adaptive Optics Imager (GSAOI) is a near-infrared adaptive optics camera that will be used with the Multi-Conjugate Adaptive Optics (MCAO) system on the Gemini South 8-m telescope . ... Gemini's major instrumentation goal is to develop its Multi-Conjugate Adaptive Optics (MCAO) system for scientific use on Gemini South. ... Existing adaptive optics systems use a single natural guide star or artifical laser guide star to measure this image blur. ...

... As an obligatory preparing for the application a short report of National Olympiad of the current year has to be presented by the applicating team (see the necessary actual points of the report, its form and examples in the Supplementary Instructions N 10 ). ... For the countries, starting their activity at the International Astronomy Olympiad (see the Supplementary Instructions N 3 ), the requirements for the short report are not strong. ... The (age) groups are defined by rules 4.5.2-4., i.e.: . ...

... ARC 3.5m | Instrument Summary . ... ARCES (Echelle) : the ARC Echelle spectrograph, a high resolution (R~31,500) echelle spectrograph that observes the entire wavelength range from 3200 е to 10000 in a single image on a 2048x2048 CCD. This instrument is permanently mounted at the NA1 port. ... In addition to the facility instruments, several visitor instruments have been used at the 3.5m, and some of these are available to the ARC observing community by contacting the instrument PIs: . ...

... NGC 188 is a moderately old open cluster in the disk of the Milky Way. The exposure was 631 seconds through B1, 315 seconds through A1 and 316 seconds through B5. 47-TUC is a metal-rich galactic globular cluster. ... M13 1490 seconds through A1 and B5. ... NGC 752 a galactic stellar cluster was observed for 1172 seconds through A1 and B5. The Hercules Cluster of Galaxies or Abell 2151 is a rather distant (by UIT imaging standards), spiral rich cluster with lots of interacting galaxies. ...

Semiconductor Home > Products > Mixed Signal and Analog > CCD IMAGERS Family > . TC213, 1024- X 512-PIXEL CCD IMAGE SENSOR . ... The TC213 is a frame-transfer charge-coupled device (CCD) image sensor that provides very high-resolution image acquisition for image-processing applications such as robotic vision, medical X-ray analysis, and metrology. The image format measures 12.00 mm horizontally by 6.12 mm vertically; the image-area diagonal is 13.5 mm. ... 13.5-mm Image-Area Diagonal . ...

... We can help students grasp the significance of Hubble's extremely keen eye, and learn a bit about angles and math in the process, with the following in-class activity. ... Looking through binoculars or telescopes allows us to magnify a small section of the sky. To measure sizes or distances in that small section, astronomers divide a degree into 60 smaller pieces called arcminutes, and further subdivide minutes into 60 smaller sections called arcseconds. ... 30 feet = . ... 36 seconds . ...

Observatory, 125, 23­24, 2005 NEGATIVE REPORT OF OCCULTATION BY THE D-TYPE ASTEROID (773) IRMINTRAUD By Apostolos Christou and Mark Bailey Armagh Observatory An unusual negative observation is reported of the predicted occultation of the star HIP 186 by (773) Irmintraud on the morning of 21 July 2004. ... This provides a constraint on the asteroid's position at the time of the event. ... References (1) R. L. Millis, D. W. Dunham, "Precise measurements of asteroid sizes and shapes from occultations". ...

... Meade Instruments Corporation . ... Meade Pictor XT-Series CCD Autoguider/Imagers . ... Take new sets of calibration frames if the temperature changes significantly.(or change the set you are using or the scaling if you are reusing calibration frames). ... You can also use scaleable dark frames called thermal frames. ... However, if you wish to reuse dark frames with images of different exposure times, you must turn the dark frame into a thermal frame by subtracting the bias information. ...

Next: The ESO VLT CCD Detectors Software . ... Up: Instrument-Specific Software . ... The framework for data calibration and analysis of the VLT instrumentation is presented, based on the concepts of a calibration plan, pipeline calibration, quality control, and archiving of calibrated data for a ground-based observatory. ... Quality Control Pipeline provides quality assessment for instrument performance data and observing conditions, and tests the results of the Reduction Pipeline. ...

... Back to the Live Radiation Monitor Data The radiation monitor on board XMM-Newton registers the total count rate and basic spectral information on the background radiation impinging on the spacecraft and its scientific instruments. ... Counting of pulses for a selected energy band and above the low thresholds. ... Sensitivity: due to the electronic threshold, actually only electrons with energy greater than 130 keV and protons greater than 1.3 MeV can be measured by this unit. ...

... HYPERBOLOID is a plasma spectrometer aimed at the investigation of the low energy ions dynamics in the polar ionosphere and magnetosphere on the INTERBALL Auroral Probe . ... The instrument is basically a multi-directional ion mass spectrometer measuring ion distribution functions over an energy range from ~0.1 to 80 eV. ... The ion angular and energy distribution are obtained by means of an electrostatic optics defining 2 planes with several entrance windows. ...

To appear in "Fourth Workshop on Robotic Autonomous Observatories (2015)"RevMexAA(SC) METEOR OBSERVATIONS WITH MINI-MEGATORTORA WIDE-FIELD MONITORING SYSTEM S. Karpov, 1, 3 N. Orekhova2 G. Beskin, 1, 3 A. Biryukov3,4 S. Bondar,2 E. Ivanov,2 E. Katkova,2 A. Perkov, and V. Sasyuk3 RESUMEN 2 Favor de prop orcionar un resumen en espanol. ... The faintest detected meteors has the peak brightness about 10 mag, while the ma jority - from 4 to 8 mag. ... 2010; Karpov et al. 2013; Beskin et al. ...

... Report on Cosmic Call 1999 . ... Cosmic Call Sessions . ... This Report outlines methodology, hard- and software, which were developed to transmit first public Interstellar messages from Evpatoria Deep Space Center (EDSC), and describes four Cosmic Call Sessions, which were fulfilled in EDSC on May 24 and June 30 - July 1, 1999. ... Each Cosmic Call consists of two parts. ... Dutil Message, . ... The software for gathering all messages and creating the Cosmic Call stream, was written on C language. ...

... Speckle polarimeter (previosly known as Multimode Fast Camera MFC) is an instrument which will implement several observational methods of astronomy in visible (BVRI bands): speckle interferometry, polarimetry, speckle polarimetry (including polaroastrometry), and fast photometry. The speckle polarimeter will be installed in one of auxiliary Nasmyth ports of 2.5 m telescope of Sternberg Astronomical Institute. Speckle interferometry. ... Tests of speckle polarimeter at 2.5 m telescope. ...