... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

... HST . ... Data . ... Retrieving HST Data . ... The f /96 camera of the FOC contains three linearly polarizing prisms with names POL0, POL60, and POL120. ... Introducing a polarizer into the beam shifts the image by several pixels. ... 1.2 . ... The image quality of the FOC suffers somewhat when a polarizing prism is used. ... Using the imcalc notation im1 , im2 , and im3 to represent the images taken through the polarizers POL0, POL60, and POL120 respectively, the Stokes parameters are as follows: ....

... The MROI makes use of optical interferometry, much like COAST . ... As a major collaborator, the Cambridge Astrophysics Group is currently developing some of the mechanisms below, specifically the delay line and the fast tip-tilt system. ... Fringe tracking is used to control the positions of the delay line trolleys to make sure the light beams from the different telescopes in the MROI arrive at the science camera beam combiners in phase so that an interference pattern can be produced. ...

... The sband transmitter measures reflected power using directional couplers at: . ... waveguide along rotary floor out to turnstile, horn . ... horn . ... Any water in this piece of waveguide would flow away from the antenna reflected power coupler that is next to the horn . ... We can see a changed in the reflected power as we go from high to low za (if water in the waveguide) using the network analyzer. the null at 25 feet is probably the distance from the turnstile to just beyond the rotary coupler...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

Next: RSOG Pre-Observation Products . ... Mission Elements . ... The main mission elements (ME) are: . The RSOG, based at ASC, which is responsible for the science operation of the RadioAstron Mission. ... The Main Ballistic(Navigation) Center (MBC) belonging to Lavochkin Association coordinates preparation and exchange of orbit determination and orbit reconstraction ptoducts. ... Experiment codes of five characters are used in naming GRT related files. ... RSOG . ... Corr (GTS?) ... Corr (RSOG?) ...

SPICE system is a data system built by Navigation Ancillary Information Facility (NAIF) , acting under the directions of NASA's Office of Space Science, to assist scientists in planning and interpreting scientific observations from space borne instruments. ... Scientists in many countries may be counted as SPICE customers. In addition to providing SPICE technology to NASA and international space missions the NAIF Group serves as the Ancillary Data Node of NASA's Planetary Data System . ...

... Credit: NEAR Project , NLR , JHUAPL , Goddard SVS , NASA Explanation: Orbiting the Sun between Mars and Earth , asteroid 433 Eros was visited by the robot spacecraft NEAR-Shoemaker in 2000 February. ... On 2001 February 12, the NEAR mission drew to a dramatic close as it was crash landed onto the asteroid's surface , surviving well enough to return an analysis of the composition of the surface regolith . ... Publications with keywords: Eros - NEAR-Shoemaker . ... NEAR at Eros: Before Touchdown . ...

... 2001 June 5 . Asteroid Eros Reconstructed . Credit : NEAR Project , NLR , JHUAPL , Goddard SVS , NASA . ... NEAR allowed scientists to discover that Eros is a single solid body, that its composition is nearly uniform, and that it formed during the early years of our Solar System . ... On 2001 February 12, the NEAR mission drew to a dramatic close as it was crash landed onto the asteroid's surface , surviving well enough to return an analysis of the composition of the surface regolith . ...

... The next meeting of the NIAAS will be held on Monday 11th May in Ballyclare High School Lecture Room and starts at 8.00pm sharp. ... Michael is the Chairperson of the Irish Federation Of Astronomical Societies (IFAS) and the Midlands Astronomy Club (formerly Tullamore Astronomical Society) . His talk at our meeting is entitled 'Constructing a 16" Dobsonian Telescope' . ... International Year of Astronomy, Ireland National Node . ...

. The XMM-Newton website has moved to the following location: . http://www.cosmos.esa.int/web/xmm-newton

... future plans, including descriptions of files described below. Developing a Strategy for Magnetospheric Research" . by David P. Stern .. ... The "Profile" Mission . ... Planning the "Profile" Multiprobe Mission . ... for Constellation Class Missions " (V. Angelopoulos and P.V. Panetta, . ... Magnetospheric Missions: 1. ... p.559-583, October-December 2001. ... The "Profile" Constellation. by David P. Stern, J. Astronaut. ... Identification of Preferred Orbits for Magnetospheric Missions." ...

... The first two catalogues (the one has been calculated using all input catalogues and the second one using only catalogues obtained with CALC/SOLVE software) provide a stochastic improvement of the ICRF 2. and the last two of them one allow us to account also for systematic errors in the current ICRF version. ... Input Catalogues and Comparisons Table 1. ... In result, the combined catalogue PUL08C01a and PUL08C01b (only input catalogues constructed using CALC/SOLVE were used) were constructed. ...

Mathilde . ... On June 27, 1997 the Near-Earth Asteroid Rendezvous (NEAR) spacecraft flew flew past asteroid 253 Mathilde. ... On June 27, 1997 NEAR made a spectatular 25 minute flyby of Mathilde which resulted in more than 500 images of a dark, crater-battered little world that dates to the beginning of the solar system. ... This first image of asteroid 253 Mathilde, returned by the NEAR spacecraft just before 10:00 AM EDT on June 27, 1997, was taken from a distance of 1800 kilometers (1120 miles). ...

... The program Conspiracy Theory: Did We Land on The Moon? seen on FOX television network (2/15/01) advanced the claim that NASA's Apollo Moon missions were a giant hoax. ... In our view the Apollo pictures were faked. ... Illumination in Shadow: FOX narrator: "On the Moon, the astronaut's only source of light was the Sun.. ... The two side-by-side photos show a test I conducted with a model of the lunar module and a toy astronaut placed in its shadow as in the Apollo image above. ... Apollo 11 Faked? ...

... Magnetic field experiment on Vega - 1 and 2 spacecraft. ... Two spacecrafts, Vega-1 and Vega-2 have been launched aboard Proton rockets from Baykonour on 15 and 21 December 1984, respectively. ... For magnetic field measurement two-sensor fluxgate system was used. ... During the cruise phase from Earth to Venus both Vega-1 and Vega-2 spacecrafts had one-axis orientation i.e. Bx of magnetometer was directed to the Sun, By and Bz axes were rotated around Bx-axis. ... Vega-1 magnetic data for 1984 . ...

... AAS 225 . AAS 223 . AAS 221 . ... In this graph I show how the number of friends and followers of users were distributed for the AAS 225 tweets. ... Total number of tweets , of which were made by the following accounts (the cut off to appear is tweets): . ... This is an experimental (i.e. it looks a bit naff) look at whether tweeting about AAS 225 changes your follower count; I got the idea after a conversation with @peterdedmonds about how tweeting about talks can change your follower count. ...

Next: SettingStoring, and Up: CCD Reductions Previous: Nature of CCD . The CCD package provides a set of basic commands that perform the various calibration steps. ... When the context CCD is enabled, a keyword structure is created which contains the parameters for the calibration steps and to control these. ... Finally, keywords are created to contain the names of important frame descriptors, like the standard MIDAS descriptor for the exposure ( O_TIME ). ...

Prague, August 16, 2006 . To start a new GCVS edition (presumably an electronic one), combining the stars of the GCVS IV and Name Lists (and maybe eventually merged with automatic-survey variables), we need to revise the GCVS classification system. ... Our approach: the classification scheme must be simplified, more detailed classification should be given in specialized catalogs for particular types, but the GCVS classification should take into account new astrophysics. ...

... The general scientific activity of the stuff is not a static phenomena, but mainly it lies in the direction, reflected in the famouse book by Ya.B.Zeldovich and I.D.Novikov "Relativistic Astrophysics". ... They can be separated into three main branches: "discology" (prof. N.I.Shakura, N. Ketsaris and grad.student G.V. Lipunova); astrophysics of neutron stars, evolution of close binaries and related problems (prof. V.M.Lipunov , prof. K.A.Postnov , drs. ...