Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Antenna system . ... The Irkutsk incoherent scatter radar is one of the world's nine active radars which give the opportunity to investigate ionosphere by the incoherent scatter method. ... Antenna gain coefficient . ... Antenna . ... Two antennas . ... To get an idea what station "Dnepr" antenna system looks like, let us consider some of the radar views which are given by the photographs General view and Side view . ...

. english || русский . Main . Location . Telescope . Instruments . Program . Science . Publications . Images . Photos . Links . The telescope is located in the TUBITAK National Observatory (TUG) ( see also here ), in the South of Turkey, in 50 km from Antalya, on the Bakyrlytepe mountain. Coordinates: 36 o 49' 30'' N, 2 h 01 m 20 s E . Elevation: 2500 м . High Energy Astrophysics Department 2016 IKI RAN

Simulations for ALMA Robert Laing European Instrument Scientist Simulations for ALMA IRAM, Sept 8 -10 2008 Why do we need simulations? ... Find out what simulations have been done for ALMA? ... Polarization Single-dish and array combination issues Deconvolution ALMA 3 Robert Laing European Instrument Scientist Simulations for ALMA What might we achieve at this meeting (2)? ... Sort out the remaining pad location issues Robert Laing European Instrument Scientist ALMA 4 Simulations for ALMA ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

Next: The Focal Plane Instruments Up: No Title Previous: The X-ray Optics . CXO has two focal plane instruments - the High-Resolution Camera (HRC) and the Advanced CCD Imaging Spectrometer (ACIS). Each of these instruments, in turn, has two detectors, one optimized for direct imaging of x rays that pass through the optics and the other optimized for imaging x rays that are dispersed by the objective transmission gratings when the latter are commanded into place directly behind the HRMA. ...

... 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. ...

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?) ...

... Members . ... The ATM's of Boston was founded in 1934 by a group of persons interested in assisting others in the art of optical polishing the craft of telescope making, and to learn together about the science of astronomy and the use of astronomical instruments. ... Mr. Jones introduced the club to Dr. Harlow Shapley at Harvard College Observatory. ... Regular shop activities resumed with the help of these "professional amateurs" and the club grew to 180 members. ... Club Newsletters . ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 . ... This document explains some of the directives provided by the core server which are used to configure the basic operations of the server. ... Related Modules . ... The ServerAdmin and ServerTokens directives control what information about the server will be presented in server-generated documents such as error messages. ... The ThreadStackSize directive is used with some platforms to control the stack size. ...

This document explains some of the directives provided by the core server which are used to configure the basic operations of the server. ... Process Creation . Network Configuration . ... User . ... A single control process is responsible for launching child processes which listen for connections and serve them when they arrive. ... The User and Group directives are used to set the privileges of the Apache child processes. ... The child process creates multiple threads to serve requests. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Other Galaxies . ... Space Flight . ... When Galaxies Collide (Image credit: ALMA (ESO/NAOJ/NRAO). Visible light image: the NASA/ESA Hubble Space Telescope) . In the southern sky constellation of Corvus (the Crow), we see the Antennae Galaxies (alias NGC 4038 and 4039). ... Your email address will not be published. ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

Summary of Eclipse Operations / Spring 2001 · · Objective: start Observations at Perigee + 4.5 h: OK Eclipse Instrument operations globally successful ­ OM/RGS automatic activation : 19 runs: 16 fully successful 3 failures (Slew / TC link / XMCS) ­ PN heater problem: Occurred twice (2nd, 4th eclipse ) ­ By products: OM keep-alive line test ( ICU DPU) 13 times: 9 OK, 4 corrupted (same ICU location) New OM ...

The LIDAR Instrument Information . The LIDAR was designed in a bistatic scheme with a separate transmitter and two receiver channels. ... The total mass of the instrument is only 940 grams (about 2 pounds) and a total volume is 950 cubic centimeters in both assemblies. ... Engineers designed the LIDAR to operate in the temperature range from -100 to 50 degrees Celsius (-148 to 122 degrees Fahrenheit) under lower pressure, near one millibar. ... One of the receiver channels has polarizer. ...

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 . ...

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

... Snowstorm on Planet Earth . ... The Milky Way in Infrared . ... Spiral Galaxy In Centaurus . ... The lovely Milky Way flows through this large constellation whose celestial wonders also include the closest star to the sun, Alpha Centauri, the largest globular star cluster in our galaxy, Omega Centauri, and the closest active galaxy, Centaurus A. A Lunar Eclipse Over Time . ... During last week's lunar eclipse, our Moon appeared to disappear. ... The Eskimo Nebula from the Newly Fixed Hubble . ...

... It?s needs solution satellite?s orientation problem for defining location of sources of ionospheric emissions above Earth?s surface with necessary accuracy. There is possibility to define orientation of photometric devices by using TV images of star background. The CCD TV camera is designed for recording of images of star sky, Earth? limb and adjoining part of Earth? surface to fix the orbit point coordinates during the measurements by FAGOT and SICH-F devices. ...

... The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ... Information on the NTP architecture, protocol and algorithms can be found in the Further Information and Bibliography page. The Building and Installing the Distribution page presents an overview of the procedures for compiling the distribution and installing it on a typical client or server. ...

... Laser GLONASS" is a combination of methods and technology that will radically reduce that error. ... 2 LASER GLONASS Purpose of creation of laser technologies and systems Achievement of GLONASS target characteristics Component of error of position and time determination due to the space segment real time ­ up to 0.6 m and 0.1* m (base values ­ 2.8 m and 1.0* m) in posterior mode ­ up to 0.03 m (base value 0.1 m) up to 1 ns (base value ... 14 LASER GLONASS Thank you for your attention! ...

This is a preliminary version of a document which will hopefully evolve into a useful SCIENCE HELP page. This is meant to be an easily accessed directory of science software and data products which are available in the high energy division, primarily those which are maintained by "volunteer" scientists. ... The idea is to make this a cooperative venture - this document can be edited by anyone on the HEAD network (/proj/qedros2/QEDT/www/Science_guide/science_guide.html). ... LOCATION: /soft/ciao . ...