... Time calculated from Fermi GBM Trigger Time = 14:12:08.67 ( Connaughton, GCN 9230 ). 1% coincident with our start zero image time. 3x3 degrees around Swift XRT position . ... SUBJECT: GRB 090424 : MASTER-Net prompt optical limit DATE: 09/04/25 20:29:42 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski ... Our observations results: ---------------------------------------------------------------------- Fermi GRB Trigg.* ...

A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...

Summary of SPHERE performance at NIH Ralf Siebenmorgen (PS) and Markus Kasper (PM) SPHERE performs in the NIH similar to what was achieved in Grenoble. ... IRDIS The IR and V filters are well mounted and the positioning accuracy is within a 1% pixel tolerance. ... The IRDIS detectors have a read-out noise 9.4 e-, a gain of 2e-/ADU and the dark current is <0.5e-/pixel/s. The instrumental background is still high. ... Centering of the pupil is achieved at an accuracy of 0.1% of the pupil diameter. ...

The close position of main satellite and subsatellite (distance between them about 1000 km) and using the similar sets of Faraday cups (VDP and VDP-S) with high resolution measurements (up to 16 Hz for the main satellite and up to 10 Hz for the subsatellite) allow us to determine the small-scale variations of the magnetopause shape and position and to estimate the velocity of the magnetopause motion. ... Two point observation of the magnetopause motion: the INTERBALL project. ...

... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...

Demands on Observation Campaigns for Accurate Predictions . ... Accurate predictions of close encounters require optimum times of observations, positions with dependences, and rigorous least squares adjustment accounting for correlations. ... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), accurate predictions of close encounters, demands on observation campaigns, optimum times of observations, positions with dependences, least squares adjustment accounting for correlations. ...

... FRAMES NO FRAMES All Classes . ... Classes in ij.plugin.filter that implement ExtendedPlugInFilter . ... Implements ImageJ's Subtract Background command. class . ... This plugin implements the Euclidean Distance Map (EDM), Watershed, Ultimate Eroded Points and Voronoi commands in the Process/Binary submenu. class . ... This plugin implements ImageJ's Process/Math submenu. class . ... This plugin implements the Mean, Minimum, Maximum, Variance, Median, Remove Outliers and Despeckle commands. class . ...

. To see a Russian version of this page click here . (Senior Researcher. Graduated from Moscow State University (MSU) in 1982, Ph.D. 1986, MSU) . A member of EAS and IAU. Fields of interest: hot massive stars, close binary systems: optical photometric and spectral observations, X-ray observations; ill-posed problems, X-ray astrophysics. My publications (ADS link) . Linux on CLEVO 8750 (old stuff) . Phones/addresses of my university mates graduated in 1982. E-mail: igor@sai.msu.ru .

... The first task assumes the searching for chemical composition and sizes of particles which give the wavelength dependence of the extinction efficiencies close to the observed dependence of . Figure 7: Wavelength dependence of the extinction efficiency factors for homogeneous spherical particles of different sizes consisting of astronomical silicate and amorphous carbon. The dashed segment shows the approximate wavelength dependence of the mean galactic extinction curve at optical wavelengths. ...

... The versatile and efficient INVERTOSCOPE? combines the highest optical performance with unsurpassed mechanical quality, and is backed by LOMO's unique lifetime warranty, the most comprehensive in the industry. ... A 15X focusing eyepiece with two interchangeable reticles (a 10mm/100div scale and a 10mm x 10mm/400sq grid) for convenient measuring and counting. ... A set of stage inserts and extension plates to accommodate a variety of sample vessels such as Petri dishes, flasks, microtest plates, etc...

... Lunar Close Up . ... Late last month, NASA's Lunar Prospector spacecraft moved in for a closer look at the Moon. ... A Disk and Jet in Haro 6-5B . ... Planets condense from disks. Several new Hubble Space Telescope pictures of stars surrounded by disks were released earlier this week. Since the glare of the central star usually makes a surrounding disk hard.. ... This burst was first detected only two weeks ago and cataloged as one of the most powerful GRBs ever. ... The Solar Wind Emerges . ...

RTT150 . Russian-Turkish 1.5-m Telescope . ... Until 2002 observations were mostly performed with ST-8E CCD in the 1:7.7 Cassegrain focus. ... In April, 2003 telescope was equipped with a larger-size CCD Andor DW436 . ... 2048 x 2048 pixels, . ... Since summer of 2002 the main focal detector of the RTT150 telescope was AP47p CCD in 1:7.7 Cassegrain focus. ... During September 3-13, 2002 works on installation of new autoguiding system ( photo 1 ) were carried out on RTT150 telescope. ...

NASA Press Release Text - June 24, 1996 GALILEO READY FOR CLOSE FLYBY OF JUPITER'S BIGGEST MOON Now residing in orbit around Jupiter, NASA's Galileo spacecraft is primed for its first close flyby of Jupiter's largest moon, Ganymede, at 2:29 a.m. EDT on June 27, 1996. ... In the days just before and after the Ganymede flyby, Galileo's other studies will include a search for auroral activity on Jupiter's nightside and observations of other Jovian moons: Io, Europa and Callisto. ...

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

... M65 Supernova 2013am . Finally got the opportunity to image M65 galaxy and the new supernova 2013am after dodging clouds with the wind dying down enough for a few hours to get good autoguiding. Seeing was not very good but had to try anyway. ... Image details: 212 minutes total; L 10 min exposure x 10; HaRGB 7.5 min x 15 binned. ... Image cropped to fit. The supernova is indicated by the cross-hairs. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... The remnants of these oldest stars should be observable today as metal-poor stars on tightly bound orbits close to the Galactic centre. The EMBLA survey made use of SkyMapper s unique filter system to hunt through more than 5 million stars in the Galactic bulge, picking out metal-poor candidates to observe using AAOmega/2dF at the AAT. Three years of observations and 14,000 stars later, and we ve found at least 10 stars with [Fe/H] . ...

... Projects . ... Space Projects . ... Closed . ... Complex Orbital Magneto-plasma Autonomous Small Satellite . ... 1991-1999) . ... Complex Orbital Near-Earth Solar Observations (1994-2001) . ... Active Plasma Experiments (1991-1999) . INTERCOSMOS 19 : launched February 27, 1979 . ... Интеркосмос-25 (АПЭКС) (1991-1999) . ... Интеркосмос-19 (1979-1982) . Интеркосмос-18 (1979) . Цикада (1979) . ... Марс-3 (17.05.1971) . ... Электрон-4 (1964-1965) . ... Космос-49 (1964) . ... 1962) . ...

Supernova 2005W in NGC 691 . This page is devoted to information on Supernova 2005W in NGC 691 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered by Yoji Hirose (Japan). ... Icon generated from the LOSS image. ... Image Credit . ... Yoji Hirose image . 2005/02/01.442 . ... Ken Levin image . ...

... Bit . ... Status . Event Time . ... Bits . closed . ... Roof Position . ... automatic . ... 0D:18H:51M:32S . swmode=AUTOMATIC . Roof System . ... 18D:16H:51M:51S . OK SunAltOpen: -1.000000, SunAltClose: -1.000000, SunNow(Alt,Az): +65.769951,-168.421600 . Time of Last Reboot: 29 Days, 21h:28m:00s . Time of ObsDaemon Reboot: +2457458.4259953703731298 (uptime: 29 days, 21h:26m:24s) . ...

... AGU Fall Meeting, 15-19 December 2008, San Francisco, poster . Zotov L., Shum C.K, Singular spectral analysis of GRACE observations Climate, Statistics, and Satellites, a symposium in honor of Jerry North , June 8-10, 2009, Presidential Conference Center, Texas A University, talk . 2009 Fulbright Visiting Scholar Conference, 19-21 April 2009, Washington DC . ... Zotov L., Shum C.K., Singular spectrum analysis of GRACE observations, 9th Gamow summer school 17-23 August, 2009, Odessa, Ukraine . ...